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-rw-r--r--tests/codegen/align-fn.rs82
-rw-r--r--tests/codegen/function-arguments.rs9
-rw-r--r--tests/crashes/116979.rs14
-rw-r--r--tests/crashes/119694.rs18
-rw-r--r--tests/crashes/132882.rs13
-rw-r--r--tests/incremental/issue-54242.rs2
-rw-r--r--tests/run-make/short-ice/rmake.rs9
-rw-r--r--tests/rustdoc-json/attrs/link_section_2021.rs6
-rw-r--r--tests/rustdoc-json/attrs/link_section_2024.rs9
-rw-r--r--tests/rustdoc-ui/invalid_infered_static_and_const.stderr4
-rw-r--r--tests/ui-fulldeps/stable-mir/check_allocation.rs60
-rw-r--r--tests/ui/SUMMARY.md4
-rw-r--r--tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.rs2
-rw-r--r--tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.stderr10
-rw-r--r--tests/ui/associated-inherent-types/issue-111879-0.stderr4
-rw-r--r--tests/ui/associated-inherent-types/normalization-overflow.stderr4
-rw-r--r--tests/ui/associated-inherent-types/regionck-1.stderr13
-rw-r--r--tests/ui/associated-types/impl-wf-cycle-4.stderr6
-rw-r--r--tests/ui/associated-types/issue-38821.rs10
-rw-r--r--tests/ui/associated-types/issue-38821.stderr68
-rw-r--r--tests/ui/associated-types/issue-59324.rs2
-rw-r--r--tests/ui/associated-types/issue-59324.stderr13
-rw-r--r--tests/ui/async-await/async-fn/impl-header.stderr16
-rw-r--r--tests/ui/attributes/inner-attrs-impl-cfg.rs36
-rw-r--r--tests/ui/attributes/malformed-attrs.rs221
-rw-r--r--tests/ui/attributes/malformed-attrs.stderr596
-rw-r--r--tests/ui/cast/non-primitive-cast-suggestion.fixed23
-rw-r--r--tests/ui/cast/non-primitive-cast-suggestion.rs23
-rw-r--r--tests/ui/cast/non-primitive-cast-suggestion.stderr15
-rw-r--r--tests/ui/closures/basic-closure-syntax.rs35
-rw-r--r--tests/ui/closures/closure-clone-requires-captured-clone.rs19
-rw-r--r--tests/ui/closures/closure-clone-requires-captured-clone.stderr23
-rw-r--r--tests/ui/closures/missing-body.rs7
-rw-r--r--tests/ui/closures/missing-body.stderr19
-rw-r--r--tests/ui/codegen/maximal-hir-to-mir-coverage-flag.rs12
-rw-r--r--tests/ui/codegen/mono-respects-abi-alignment.rs37
-rw-r--r--tests/ui/codegen/msvc-opt-level-z-no-corruption.rs37
-rw-r--r--tests/ui/coherence/coherence-impl-trait-for-trait-dyn-compatible.stderr16
-rw-r--r--tests/ui/coherence/fuzzing/best-obligation-ICE.stderr18
-rw-r--r--tests/ui/compiletest-self-test/ui-test-missing-annotations-detection.rs9
-rw-r--r--tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.rs1
-rw-r--r--tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.stderr23
-rw-r--r--tests/ui/const-generics/generic_const_exprs/type_mismatch.stderr16
-rw-r--r--tests/ui/const-generics/ice-unexpected-inference-var-122549.rs1
-rw-r--r--tests/ui/const-generics/ice-unexpected-inference-var-122549.stderr22
-rw-r--r--tests/ui/const-generics/issues/issue-71202.stderr2
-rw-r--r--tests/ui/const-generics/normalizing_with_unconstrained_impl_params.rs1
-rw-r--r--tests/ui/const-generics/normalizing_with_unconstrained_impl_params.stderr15
-rw-r--r--tests/ui/const-generics/not_wf_param_in_rpitit.stderr2
-rw-r--r--tests/ui/consts/array-repeat-expr-not-const.rs10
-rw-r--r--tests/ui/consts/array-repeat-expr-not-const.stderr (renamed from tests/ui/non-constant-expr-for-arr-len.stderr)6
-rw-r--r--tests/ui/consts/const-fn-type-name.rs2
-rw-r--r--tests/ui/consts/const-unsized.stderr8
-rw-r--r--tests/ui/consts/const_refs_to_static-ice-121413.stderr4
-rw-r--r--tests/ui/consts/dont-ctfe-unsized-initializer.stderr4
-rw-r--r--tests/ui/consts/issue-103790.stderr2
-rw-r--r--tests/ui/cross-crate/auxiliary/unexported-type-error-message.rs (renamed from tests/ui/auxiliary/noexporttypelib.rs)0
-rw-r--r--tests/ui/cross-crate/unexported-type-error-message.rs (renamed from tests/ui/noexporttypeexe.rs)6
-rw-r--r--tests/ui/cross-crate/unexported-type-error-message.stderr18
-rw-r--r--tests/ui/cycle-trait/cycle-trait-supertrait-direct.stderr6
-rw-r--r--tests/ui/cycle-trait/issue-12511.stderr6
-rw-r--r--tests/ui/delegation/unsupported.stderr16
-rw-r--r--tests/ui/derives/derive-Debug-enum-variants.rs30
-rw-r--r--tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr2
-rw-r--r--tests/ui/did_you_mean/bad-assoc-ty.edition2021.stderr2
-rw-r--r--tests/ui/did_you_mean/bad-assoc-ty.rs2
-rw-r--r--tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.fixed2
-rw-r--r--tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.rs2
-rw-r--r--tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.stderr2
-rw-r--r--tests/ui/drop/field-replace-in-struct-with-drop.rs40
-rw-r--r--tests/ui/dropck/explicit-drop-bounds.bad1.stderr12
-rw-r--r--tests/ui/dropck/explicit-drop-bounds.bad2.stderr12
-rw-r--r--tests/ui/dropck/unconstrained_const_param_on_drop.rs1
-rw-r--r--tests/ui/dropck/unconstrained_const_param_on_drop.stderr14
-rw-r--r--tests/ui/dyn-star/align.normal.stderr20
-rw-r--r--tests/ui/dyn-star/align.over_aligned.stderr20
-rw-r--r--tests/ui/dyn-star/align.rs16
-rw-r--r--tests/ui/dyn-star/async-block-dyn-star.rs9
-rw-r--r--tests/ui/dyn-star/async-block-dyn-star.stderr20
-rw-r--r--tests/ui/dyn-star/auxiliary/dyn-star-foreign.rs9
-rw-r--r--tests/ui/dyn-star/box.rs20
-rw-r--r--tests/ui/dyn-star/cell.rs34
-rw-r--r--tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.current.stderr18
-rw-r--r--tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.next.stderr18
-rw-r--r--tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.rs19
-rw-r--r--tests/ui/dyn-star/check-size-at-cast-polymorphic.rs16
-rw-r--r--tests/ui/dyn-star/check-size-at-cast.rs10
-rw-r--r--tests/ui/dyn-star/check-size-at-cast.stderr11
-rw-r--r--tests/ui/dyn-star/const-and-static.rs10
-rw-r--r--tests/ui/dyn-star/const-and-static.stderr11
-rw-r--r--tests/ui/dyn-star/const.rs14
-rw-r--r--tests/ui/dyn-star/dispatch-on-pin-mut.rs36
-rw-r--r--tests/ui/dyn-star/dispatch-on-pin-mut.run.stdout1
-rw-r--r--tests/ui/dyn-star/dispatch-on-pin-mut.stderr11
-rw-r--r--tests/ui/dyn-star/dont-unsize-coerce-dyn-star.rs27
-rw-r--r--tests/ui/dyn-star/dont-unsize-coerce-dyn-star.run.stdout2
-rw-r--r--tests/ui/dyn-star/dont-unsize-coerce-dyn-star.stderr11
-rw-r--r--tests/ui/dyn-star/drop.rs28
-rw-r--r--tests/ui/dyn-star/drop.run.stdout1
-rw-r--r--tests/ui/dyn-star/dyn-async-trait.rs36
-rw-r--r--tests/ui/dyn-star/dyn-pointer-like.rs23
-rw-r--r--tests/ui/dyn-star/dyn-pointer-like.stderr39
-rw-r--r--tests/ui/dyn-star/dyn-star-to-dyn.rs17
-rw-r--r--tests/ui/dyn-star/dyn-star-to-dyn.stderr11
-rw-r--r--tests/ui/dyn-star/dyn-to-rigid.rs11
-rw-r--r--tests/ui/dyn-star/dyn-to-rigid.stderr9
-rw-r--r--tests/ui/dyn-star/enum-cast.rs23
-rw-r--r--tests/ui/dyn-star/error.rs13
-rw-r--r--tests/ui/dyn-star/error.stderr15
-rw-r--r--tests/ui/dyn-star/feature-gate-dyn_star.rs9
-rw-r--r--tests/ui/dyn-star/feature-gate-dyn_star.stderr13
-rw-r--r--tests/ui/dyn-star/float-as-dyn-star.rs16
-rw-r--r--tests/ui/dyn-star/float-as-dyn-star.stderr23
-rw-r--r--tests/ui/dyn-star/gated-span.rs8
-rw-r--r--tests/ui/dyn-star/gated-span.stderr13
-rw-r--r--tests/ui/dyn-star/illegal.rs16
-rw-r--r--tests/ui/dyn-star/illegal.stderr27
-rw-r--r--tests/ui/dyn-star/issue-102430.rs32
-rw-r--r--tests/ui/dyn-star/make-dyn-star.rs18
-rw-r--r--tests/ui/dyn-star/method.rs27
-rw-r--r--tests/ui/dyn-star/no-explicit-dyn-star-cast.rs13
-rw-r--r--tests/ui/dyn-star/no-explicit-dyn-star-cast.stderr30
-rw-r--r--tests/ui/dyn-star/no-explicit-dyn-star.rs8
-rw-r--r--tests/ui/dyn-star/no-explicit-dyn-star.stderr9
-rw-r--r--tests/ui/dyn-star/no-implicit-dyn-star.rs8
-rw-r--r--tests/ui/dyn-star/no-implicit-dyn-star.stderr20
-rw-r--r--tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs13
-rw-r--r--tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr14
-rw-r--r--tests/ui/dyn-star/param-env-region-infer.current.stderr9
-rw-r--r--tests/ui/dyn-star/param-env-region-infer.rs24
-rw-r--r--tests/ui/dyn-star/pointer-like-impl-rules.rs82
-rw-r--r--tests/ui/dyn-star/pointer-like-impl-rules.stderr85
-rw-r--r--tests/ui/dyn-star/return.rs10
-rw-r--r--tests/ui/dyn-star/return.stderr11
-rw-r--r--tests/ui/dyn-star/syntax.rs11
-rw-r--r--tests/ui/dyn-star/thin.next.stderr11
-rw-r--r--tests/ui/dyn-star/thin.old.stderr11
-rw-r--r--tests/ui/dyn-star/thin.rs16
-rw-r--r--tests/ui/dyn-star/union.rs16
-rw-r--r--tests/ui/dyn-star/union.stderr20
-rw-r--r--tests/ui/dyn-star/unsize-into-ref-dyn-star.rs9
-rw-r--r--tests/ui/dyn-star/unsize-into-ref-dyn-star.stderr9
-rw-r--r--tests/ui/dyn-star/upcast.rs32
-rw-r--r--tests/ui/dyn-star/upcast.stderr28
-rw-r--r--tests/ui/enum-discriminant/eval-error.stderr24
-rw-r--r--tests/ui/extern/issue-36122-accessing-externed-dst.stderr4
-rw-r--r--tests/ui/extern/issue-47725.rs1
-rw-r--r--tests/ui/extern/issue-47725.stderr5
-rw-r--r--tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr48
-rw-r--r--tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr16
-rw-r--r--tests/ui/fmt/debug-single-call.rs (renamed from tests/ui/logging-only-prints-once.rs)7
-rw-r--r--tests/ui/fn/error-recovery-mismatch.stderr2
-rw-r--r--tests/ui/fn/issue-39259.stderr16
-rw-r--r--tests/ui/generic-associated-types/bugs/issue-87735.stderr9
-rw-r--r--tests/ui/generic-associated-types/bugs/issue-88526.stderr9
-rw-r--r--tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.rs1
-rw-r--r--tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.stderr15
-rw-r--r--tests/ui/generic-associated-types/issue-84931.stderr9
-rw-r--r--tests/ui/generic-associated-types/static-lifetime-tip-with-default-type.stderr16
-rw-r--r--tests/ui/generic-const-items/evaluatable-bounds.stderr2
-rw-r--r--tests/ui/generics/newtype-with-generics.rs32
-rw-r--r--tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-89118.stderr4
-rw-r--r--tests/ui/impl-trait/basic-trait-impl.rs (renamed from tests/ui/new-impl-syntax.rs)8
-rw-r--r--tests/ui/impl-trait/in-trait/false-positive-predicate-entailment-error.current.stderr40
-rw-r--r--tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.current.stderr8
-rw-r--r--tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.next.stderr16
-rw-r--r--tests/ui/impl-trait/in-trait/refine-resolution-errors.rs1
-rw-r--r--tests/ui/impl-trait/in-trait/refine-resolution-errors.stderr29
-rw-r--r--tests/ui/impl-trait/in-trait/span-bug-issue-121457.stderr24
-rw-r--r--tests/ui/impl-trait/in-trait/unconstrained-lt.rs1
-rw-r--r--tests/ui/impl-trait/in-trait/unconstrained-lt.stderr20
-rw-r--r--tests/ui/implied-bounds/impl-header-unnormalized-types.stderr4
-rw-r--r--tests/ui/indexing/indexing-integral-types.rs (renamed from tests/ui/integral-indexing.rs)12
-rw-r--r--tests/ui/indexing/indexing-integral-types.stderr (renamed from tests/ui/integral-indexing.stderr)16
-rw-r--r--tests/ui/infinite/infinite-trait-alias-recursion.stderr2
-rw-r--r--tests/ui/infinite/infinite-type-alias-mutual-recursion.feature.stderr12
-rw-r--r--tests/ui/infinite/infinite-vec-type-recursion.feature.stderr4
-rw-r--r--tests/ui/inner-attrs-on-impl.rs24
-rw-r--r--tests/ui/inner-module.rs10
-rw-r--r--tests/ui/inner-static-type-parameter.rs11
-rw-r--r--tests/ui/invalid/invalid_rustc_layout_scalar_valid_range.stderr38
-rw-r--r--tests/ui/issues/issue-54410.stderr4
-rw-r--r--tests/ui/issues/issue-7364.stderr4
-rw-r--r--tests/ui/layout/ice-non-last-unsized-field-issue-121473.stderr24
-rw-r--r--tests/ui/layout/rust-call-abi-not-a-tuple-ice-81974.stderr30
-rw-r--r--tests/ui/lazy-type-alias/inherent-impls-overflow.current.stderr12
-rw-r--r--tests/ui/lazy-type-alias/inherent-impls-overflow.next.stderr12
-rw-r--r--tests/ui/lazy-type-alias/unconstrained-params-in-impl-due-to-overflow.stderr4
-rw-r--r--tests/ui/lifetimes/issue-64173-unused-lifetimes.stderr12
-rw-r--r--tests/ui/lifetimes/issue-76168-hr-outlives-3.rs4
-rw-r--r--tests/ui/lifetimes/issue-76168-hr-outlives-3.stderr26
-rw-r--r--tests/ui/lifetimes/issue-95023.stderr16
-rw-r--r--tests/ui/linkage-attr/auxiliary/msvc-static-data-import-lib.rs (renamed from tests/ui/auxiliary/msvc-data-only-lib.rs)0
-rw-r--r--tests/ui/linkage-attr/link-section-placement.rs (renamed from tests/ui/link-section.rs)3
-rw-r--r--tests/ui/linkage-attr/msvc-static-data-import.rs18
-rw-r--r--tests/ui/lint/missing-debug-implementations-lint.rs (renamed from tests/ui/missing_debug_impls.rs)8
-rw-r--r--tests/ui/lint/missing-debug-implementations-lint.stderr (renamed from tests/ui/missing_debug_impls.stderr)6
-rw-r--r--tests/ui/lint/unused/unused-attr-duplicate.rs6
-rw-r--r--tests/ui/lint/unused/unused-attr-duplicate.stderr15
-rw-r--r--tests/ui/log-err-phi.rs7
-rw-r--r--tests/ui/log-knows-the-names-of-variants.rs21
-rw-r--r--tests/ui/loud_ui.rs6
-rw-r--r--tests/ui/lowering/issue-121108.stderr2
-rw-r--r--tests/ui/macros/macro-span-issue-116502.stderr8
-rw-r--r--tests/ui/macros/metavar-expressions/concat-allowed-operations.rs (renamed from tests/ui/macros/macro-metavar-expr-concat/allowed-operations.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/concat-hygiene.rs (renamed from tests/ui/macros/macro-metavar-expr-concat/hygiene.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/concat-hygiene.stderr (renamed from tests/ui/macros/macro-metavar-expr-concat/hygiene.stderr)2
-rw-r--r--tests/ui/macros/metavar-expressions/concat-raw-identifiers.rs (renamed from tests/ui/macros/macro-metavar-expr-concat/raw-identifiers.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/concat-raw-identifiers.stderr (renamed from tests/ui/macros/macro-metavar-expr-concat/raw-identifiers.stderr)28
-rw-r--r--tests/ui/macros/metavar-expressions/concat-repetitions.rs (renamed from tests/ui/macros/macro-metavar-expr-concat/repetitions.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/concat-repetitions.stderr (renamed from tests/ui/macros/macro-metavar-expr-concat/repetitions.stderr)6
-rw-r--r--tests/ui/macros/metavar-expressions/concat-trace-errors.rs33
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-rw-r--r--tests/ui/macros/metavar-expressions/concat-unicode-expansion.rs (renamed from tests/ui/macros/macro-metavar-expr-concat/unicode-expansion.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/concat-usage-errors.rs (renamed from tests/ui/macros/macro-metavar-expr-concat/syntax-errors.rs)26
-rw-r--r--tests/ui/macros/metavar-expressions/concat-usage-errors.stderr (renamed from tests/ui/macros/macro-metavar-expr-concat/syntax-errors.stderr)128
-rw-r--r--tests/ui/macros/metavar-expressions/count-and-length-are-distinct.rs (renamed from tests/ui/macros/rfc-3086-metavar-expr/count-and-length-are-distinct.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/count-empty-index-arg.rs (renamed from tests/ui/macros/rfc-3086-metavar-expr/issue-111904.rs)6
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-rw-r--r--tests/ui/macros/metavar-expressions/dollar-dollar-has-correct-behavior.rs (renamed from tests/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/feature-gate-macro_metavar_expr.rs (renamed from tests/ui/macros/rfc-3086-metavar-expr/feature-gate-macro_metavar_expr.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/macro-expansion.rs (renamed from tests/ui/macros/rfc-3086-metavar-expr/macro-expansion.rs)0
-rw-r--r--tests/ui/macros/metavar-expressions/out-of-bounds-arguments.rs (renamed from tests/ui/macros/rfc-3086-metavar-expr/out-of-bounds-arguments.rs)0
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-rw-r--r--tests/ui/maximal_mir_to_hir_coverage.rs10
-rw-r--r--tests/ui/maybe-bounds.rs9
-rw-r--r--tests/ui/method-output-diff-issue-127263.rs8
-rw-r--r--tests/ui/methods/filter-relevant-fn-bounds.rs5
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-rw-r--r--tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.rs16
-rw-r--r--tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.stderr (renamed from tests/ui/method-output-diff-issue-127263.stderr)4
-rw-r--r--tests/ui/mismatched_types/int-float-type-mismatch.rs (renamed from tests/ui/integral-variable-unification-error.rs)3
-rw-r--r--tests/ui/mismatched_types/int-float-type-mismatch.stderr (renamed from tests/ui/integral-variable-unification-error.stderr)2
-rw-r--r--tests/ui/mod-subitem-as-enum-variant.rs9
-rw-r--r--tests/ui/modules/nested-modules-basic.rs19
-rw-r--r--tests/ui/monomorphize-abi-alignment.rs35
-rw-r--r--tests/ui/msvc-data-only.rs8
-rw-r--r--tests/ui/msvc-opt-minsize.rs31
-rw-r--r--tests/ui/multibyte.rs7
-rw-r--r--tests/ui/multiline-comment.rs6
-rw-r--r--tests/ui/new-import-syntax.rs5
-rw-r--r--tests/ui/new-style-constants.rs7
-rw-r--r--tests/ui/newlambdas.rs14
-rw-r--r--tests/ui/newtype-polymorphic.rs27
-rw-r--r--tests/ui/newtype.rs23
-rw-r--r--tests/ui/no-core-1.rs15
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-rw-r--r--tests/ui/no-warn-on-field-replace-issue-34101.rs46
-rw-r--r--tests/ui/no_send-enum.rs18
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-rw-r--r--tests/ui/no_share-struct.stderr18
-rw-r--r--tests/ui/no_std/no-core-edition2018-syntax.rs28
-rw-r--r--tests/ui/no_std/no-core-with-explicit-std-core.rs21
-rw-r--r--tests/ui/noexporttypeexe.stderr18
-rw-r--r--tests/ui/non-constant-expr-for-arr-len.rs8
-rw-r--r--tests/ui/nonscalar-cast.fixed16
-rw-r--r--tests/ui/nonscalar-cast.rs16
-rw-r--r--tests/ui/nonscalar-cast.stderr15
-rw-r--r--tests/ui/not-clone-closure.rs13
-rw-r--r--tests/ui/not-clone-closure.stderr23
-rw-r--r--tests/ui/parser/bad-lit-suffixes.rs2
-rw-r--r--tests/ui/parser/bad-lit-suffixes.stderr34
-rw-r--r--tests/ui/parser/multiline-comments-basic.rs10
-rw-r--r--tests/ui/parser/trait-object-delimiters.rs2
-rw-r--r--tests/ui/parser/trait-object-delimiters.stderr4
-rw-r--r--tests/ui/parser/unicode-escape-sequences.rs (renamed from tests/ui/new-unicode-escapes.rs)6
-rw-r--r--tests/ui/parser/unicode-multibyte-chars-no-ice.rs9
-rw-r--r--tests/ui/regions/lifetime-not-long-enough-suggestion-regression-test-124563.stderr4
-rw-r--r--tests/ui/regions/region-bounds-on-objects-and-type-parameters.stderr16
-rw-r--r--tests/ui/regions/regions-normalize-in-where-clause-list.rs2
-rw-r--r--tests/ui/regions/regions-normalize-in-where-clause-list.stderr12
-rw-r--r--tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr1
-rw-r--r--tests/ui/resolve/struct-function-same-name.rs (renamed from tests/ui/max-min-classes.rs)4
-rw-r--r--tests/ui/resolve/type-param-local-var-shadowing.rs (renamed from tests/ui/lexical-scoping.rs)9
-rw-r--r--tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region-rev.stderr4
-rw-r--r--tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region.stderr4
-rw-r--r--tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type-rev.stderr4
-rw-r--r--tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type.stderr4
-rw-r--r--tests/ui/rfcs/rfc-2093-infer-outlives/regions-struct-not-wf.stderr12
-rw-r--r--tests/ui/self/self-infer.rs4
-rw-r--r--tests/ui/self/self-infer.stderr4
-rw-r--r--tests/ui/simd/array-trait.stderr12
-rw-r--r--tests/ui/sized-hierarchy/impls.rs7
-rw-r--r--tests/ui/sized-hierarchy/impls.stderr66
-rw-r--r--tests/ui/specialization/defaultimpl/validation.stderr16
-rw-r--r--tests/ui/specialization/issue-51892.stderr4
-rw-r--r--tests/ui/specialization/min_specialization/issue-79224.stderr12
-rw-r--r--tests/ui/static/issue-24446.stderr8
-rw-r--r--tests/ui/statics/issue-17718-static-sync.stderr4
-rw-r--r--tests/ui/statics/static-generic-param-soundness.rs20
-rw-r--r--tests/ui/statics/static-generic-param-soundness.stderr (renamed from tests/ui/inner-static-type-parameter.stderr)6
-rw-r--r--tests/ui/statics/uninhabited-static.stderr24
-rw-r--r--tests/ui/statics/unsized_type2.stderr4
-rw-r--r--tests/ui/statics/unsizing-wfcheck-issue-127299.stderr4
-rw-r--r--tests/ui/stats/macro-stats.rs9
-rw-r--r--tests/ui/stats/macro-stats.stderr3
-rw-r--r--tests/ui/structs/basic-newtype-pattern.rs25
-rw-r--r--tests/ui/suggestions/bad-infer-in-trait-impl.rs2
-rw-r--r--tests/ui/suggestions/bad-infer-in-trait-impl.stderr2
-rw-r--r--tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.rs8
-rw-r--r--tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.stderr33
-rw-r--r--tests/ui/threads-sendsync/rc-is-not-send.rs (renamed from tests/ui/no-send-res-ports.rs)30
-rw-r--r--tests/ui/threads-sendsync/rc-is-not-send.stderr (renamed from tests/ui/no-send-res-ports.stderr)24
-rw-r--r--tests/ui/traits/associated_type_bound/116464-invalid-assoc-type-suggestion-in-trait-impl.stderr12
-rw-r--r--tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr2
-rw-r--r--tests/ui/traits/constrained-type-params-trait-impl.stderr22
-rw-r--r--tests/ui/traits/deep-norm-pending.rs4
-rw-r--r--tests/ui/traits/deep-norm-pending.stderr49
-rw-r--r--tests/ui/traits/dispatch-from-dyn-invalid-impls.rs (renamed from tests/ui/invalid_dispatch_from_dyn_impls.rs)48
-rw-r--r--tests/ui/traits/dispatch-from-dyn-invalid-impls.stderr (renamed from tests/ui/invalid_dispatch_from_dyn_impls.stderr)30
-rw-r--r--tests/ui/traits/dyn-star-drop-principal.rs12
-rw-r--r--tests/ui/traits/dyn-star-drop-principal.stderr11
-rw-r--r--tests/ui/traits/encoder-trait-bounds-regression.rs (renamed from tests/ui/issue-11881.rs)17
-rw-r--r--tests/ui/traits/enum-negative-send-impl.rs22
-rw-r--r--tests/ui/traits/enum-negative-send-impl.stderr23
-rw-r--r--tests/ui/traits/enum-negative-sync-impl.rs22
-rw-r--r--tests/ui/traits/enum-negative-sync-impl.stderr23
-rw-r--r--tests/ui/traits/eval-caching-error-region.rs23
-rw-r--r--tests/ui/traits/eval-caching-error-region.stderr33
-rw-r--r--tests/ui/traits/issue-105231.stderr22
-rw-r--r--tests/ui/traits/issue-78372.stderr12
-rw-r--r--tests/ui/traits/issue-87558.stderr16
-rw-r--r--tests/ui/traits/maybe-trait-bounds-forbidden-locations.rs18
-rw-r--r--tests/ui/traits/maybe-trait-bounds-forbidden-locations.stderr (renamed from tests/ui/maybe-bounds.stderr)6
-rw-r--r--tests/ui/traits/method-argument-mismatch-variance-ice-119867.stderr2
-rw-r--r--tests/ui/traits/next-solver/issue-118950-root-region.stderr4
-rw-r--r--tests/ui/traits/rc-not-send.rs11
-rw-r--r--tests/ui/traits/rc-not-send.stderr22
-rw-r--r--tests/ui/traits/struct-negative-sync-impl.rs21
-rw-r--r--tests/ui/traits/struct-negative-sync-impl.stderr18
-rw-r--r--tests/ui/traits/trait-upcasting/cyclic-trait-resolution.stderr2
-rw-r--r--tests/ui/traits/trait-upcasting/dyn-to-dyn-star.rs19
-rw-r--r--tests/ui/traits/unconstrained-projection-normalization-2.current.stderr29
-rw-r--r--tests/ui/traits/unconstrained-projection-normalization-2.next.stderr30
-rw-r--r--tests/ui/traits/unconstrained-projection-normalization-2.rs3
-rw-r--r--tests/ui/traits/unconstrained-projection-normalization.current.stderr29
-rw-r--r--tests/ui/traits/unconstrained-projection-normalization.next.stderr29
-rw-r--r--tests/ui/traits/unconstrained-projection-normalization.rs3
-rw-r--r--tests/ui/type-alias-enum-variants/module-type-args-error.rs16
-rw-r--r--tests/ui/type-alias-enum-variants/module-type-args-error.stderr (renamed from tests/ui/mod-subitem-as-enum-variant.stderr)2
-rw-r--r--tests/ui/typeck/issue-13853-5.rs3
-rw-r--r--tests/ui/typeck/issue-13853-5.stderr15
-rw-r--r--tests/ui/typeck/issue-74086.rs2
-rw-r--r--tests/ui/typeck/issue-74086.stderr2
-rw-r--r--tests/ui/typeck/issue-75889.stderr4
-rw-r--r--tests/ui/typeck/issue-81885.rs4
-rw-r--r--tests/ui/typeck/issue-81885.stderr4
-rw-r--r--tests/ui/typeck/issue-83621-placeholder-static-in-extern.stderr2
-rw-r--r--tests/ui/typeck/issue-88643.rs6
-rw-r--r--tests/ui/typeck/issue-88643.stderr6
-rw-r--r--tests/ui/typeck/typeck_type_placeholder_item.rs28
-rw-r--r--tests/ui/typeck/typeck_type_placeholder_item.stderr28
-rw-r--r--tests/ui/typeck/typeck_type_placeholder_item_help.rs2
-rw-r--r--tests/ui/typeck/typeck_type_placeholder_item_help.stderr2
-rw-r--r--tests/ui/union/issue-81199.stderr24
-rw-r--r--tests/ui/union/union-unsized.stderr30
-rw-r--r--tests/ui/unpretty/exhaustive.expanded.stdout2
-rw-r--r--tests/ui/unpretty/exhaustive.hir.stderr40
-rw-r--r--tests/ui/unpretty/exhaustive.hir.stdout2
-rw-r--r--tests/ui/unpretty/exhaustive.rs2
-rw-r--r--tests/ui/unsized-locals/yote.stderr2
-rw-r--r--tests/ui/unsized/unsized-trait-impl-self-type.stderr18
-rw-r--r--tests/ui/unsized/unsized-trait-impl-trait-arg.stderr18
-rw-r--r--tests/ui/unsized/unsized7.stderr18
-rw-r--r--tests/ui/variance/variance-regions-unused-indirect.stderr16
-rw-r--r--tests/ui/wf/hir-wf-check-erase-regions.stderr4
-rw-r--r--tests/ui/wf/ice-hir-wf-check-anon-const-issue-122199.stderr2
-rw-r--r--tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr4
-rw-r--r--tests/ui/wf/wf-impl-associated-type-region.stderr4
-rw-r--r--tests/ui/wf/wf-outlives-ty-in-fn-or-trait.stderr8
-rw-r--r--tests/ui/wf/wf-trait-associated-type-region.stderr4
384 files changed, 3644 insertions, 3597 deletions
diff --git a/tests/codegen/align-fn.rs b/tests/codegen/align-fn.rs
index 267da060240..90073ff3081 100644
--- a/tests/codegen/align-fn.rs
+++ b/tests/codegen/align-fn.rs
@@ -1,10 +1,10 @@
-//@ compile-flags: -C no-prepopulate-passes -Z mir-opt-level=0
+//@ compile-flags: -C no-prepopulate-passes -Z mir-opt-level=0 -Clink-dead-code
 
 #![crate_type = "lib"]
 #![feature(fn_align)]
 
 // CHECK: align 16
-#[no_mangle]
+#[unsafe(no_mangle)]
 #[align(16)]
 pub fn fn_align() {}
 
@@ -12,12 +12,12 @@ pub struct A;
 
 impl A {
     // CHECK: align 16
-    #[no_mangle]
+    #[unsafe(no_mangle)]
     #[align(16)]
     pub fn method_align(self) {}
 
     // CHECK: align 16
-    #[no_mangle]
+    #[unsafe(no_mangle)]
     #[align(16)]
     pub fn associated_fn() {}
 }
@@ -25,46 +25,94 @@ impl A {
 trait T: Sized {
     fn trait_fn() {}
 
-    // CHECK: align 32
-    #[align(32)]
     fn trait_method(self) {}
+
+    #[align(8)]
+    fn trait_method_inherit_low(self);
+
+    #[align(32)]
+    fn trait_method_inherit_high(self);
+
+    #[align(32)]
+    fn trait_method_inherit_default(self) {}
+
+    #[align(4)]
+    #[align(128)]
+    #[align(8)]
+    fn inherit_highest(self) {}
 }
 
 impl T for A {
-    // CHECK: align 16
-    #[no_mangle]
+    // CHECK-LABEL: trait_fn
+    // CHECK-SAME: align 16
+    #[unsafe(no_mangle)]
     #[align(16)]
     fn trait_fn() {}
 
-    // CHECK: align 16
-    #[no_mangle]
+    // CHECK-LABEL: trait_method
+    // CHECK-SAME: align 16
+    #[unsafe(no_mangle)]
     #[align(16)]
     fn trait_method(self) {}
-}
 
-impl T for () {}
+    // The prototype's align is ignored because the align here is higher.
+    // CHECK-LABEL: trait_method_inherit_low
+    // CHECK-SAME: align 16
+    #[unsafe(no_mangle)]
+    #[align(16)]
+    fn trait_method_inherit_low(self) {}
+
+    // The prototype's align is used because it is higher.
+    // CHECK-LABEL: trait_method_inherit_high
+    // CHECK-SAME: align 32
+    #[unsafe(no_mangle)]
+    #[align(16)]
+    fn trait_method_inherit_high(self) {}
+
+    // The prototype's align inherited.
+    // CHECK-LABEL: trait_method_inherit_default
+    // CHECK-SAME: align 32
+    #[unsafe(no_mangle)]
+    fn trait_method_inherit_default(self) {}
+
+    // The prototype's highest align inherited.
+    // CHECK-LABEL: inherit_highest
+    // CHECK-SAME: align 128
+    #[unsafe(no_mangle)]
+    #[align(32)]
+    #[align(64)]
+    fn inherit_highest(self) {}
+}
 
-pub fn foo() {
-    ().trait_method();
+trait HasDefaultImpl: Sized {
+    // CHECK-LABEL: inherit_from_default_method
+    // CHECK-LABEL: inherit_from_default_method
+    // CHECK-SAME: align 32
+    #[align(32)]
+    fn inherit_from_default_method(self) {}
 }
 
+pub struct InstantiateDefaultMethods;
+
+impl HasDefaultImpl for InstantiateDefaultMethods {}
+
 // CHECK-LABEL: align_specified_twice_1
 // CHECK-SAME: align 64
-#[no_mangle]
+#[unsafe(no_mangle)]
 #[align(32)]
 #[align(64)]
 pub fn align_specified_twice_1() {}
 
 // CHECK-LABEL: align_specified_twice_2
 // CHECK-SAME: align 128
-#[no_mangle]
+#[unsafe(no_mangle)]
 #[align(128)]
 #[align(32)]
 pub fn align_specified_twice_2() {}
 
 // CHECK-LABEL: align_specified_twice_3
 // CHECK-SAME: align 256
-#[no_mangle]
+#[unsafe(no_mangle)]
 #[align(32)]
 #[align(256)]
 pub fn align_specified_twice_3() {}
diff --git a/tests/codegen/function-arguments.rs b/tests/codegen/function-arguments.rs
index f0708a7a109..c8cd8526ae5 100644
--- a/tests/codegen/function-arguments.rs
+++ b/tests/codegen/function-arguments.rs
@@ -1,7 +1,6 @@
 //@ compile-flags: -Copt-level=3 -C no-prepopulate-passes
 #![crate_type = "lib"]
 #![feature(rustc_attrs)]
-#![feature(dyn_star)]
 #![feature(allocator_api)]
 
 use std::marker::PhantomPinned;
@@ -277,11 +276,3 @@ pub fn enum_id_1(x: Option<Result<u16, u16>>) -> Option<Result<u16, u16>> {
 pub fn enum_id_2(x: Option<u8>) -> Option<u8> {
     x
 }
-
-// CHECK: { ptr, {{.+}} } @dyn_star(ptr noundef %x.0, {{.+}} noalias noundef readonly align {{.*}} dereferenceable({{.*}}) %x.1)
-// Expect an ABI something like `{ {}*, [3 x i64]* }`, but that's hard to match on generically,
-// so do like the `trait_box` test and just match on `{{.+}}` for the vtable.
-#[no_mangle]
-pub fn dyn_star(x: dyn* Drop) -> dyn* Drop {
-    x
-}
diff --git a/tests/crashes/116979.rs b/tests/crashes/116979.rs
deleted file mode 100644
index 28bbc972ea3..00000000000
--- a/tests/crashes/116979.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-//@ known-bug: #116979
-//@ compile-flags: -Csymbol-mangling-version=v0
-//@ needs-rustc-debug-assertions
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Display;
-
-pub fn require_dyn_star_display(_: dyn* Display) {}
-
-fn main() {
-    require_dyn_star_display(1usize);
-}
diff --git a/tests/crashes/119694.rs b/tests/crashes/119694.rs
deleted file mode 100644
index f655ea1cd34..00000000000
--- a/tests/crashes/119694.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-//@ known-bug: #119694
-#![feature(dyn_star)]
-
-trait Trait {
-    fn foo(self);
-}
-
-impl Trait for usize {
-    fn foo(self) {}
-}
-
-fn bar(x: dyn* Trait) {
-    x.foo();
-}
-
-fn main() {
-    bar(0usize);
-}
diff --git a/tests/crashes/132882.rs b/tests/crashes/132882.rs
deleted file mode 100644
index 6b5e4dba803..00000000000
--- a/tests/crashes/132882.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-//@ known-bug: #132882
-
-use std::ops::Add;
-
-pub trait Numoid
-where
-    for<N: Numoid> &'a Self: Add<Self>,
-{
-}
-
-pub fn compute<N: Numoid>(a: N) -> N {
-    &a + a
-}
diff --git a/tests/incremental/issue-54242.rs b/tests/incremental/issue-54242.rs
index 9fa5363e004..17bbd619a8f 100644
--- a/tests/incremental/issue-54242.rs
+++ b/tests/incremental/issue-54242.rs
@@ -14,7 +14,7 @@ impl Tr for str {
     type Arr = [u8; 8];
     #[cfg(cfail)]
     type Arr = [u8; Self::C];
-    //[cfail]~^ ERROR cycle detected when evaluating type-level constant
+    //[cfail]~^ ERROR cycle detected when caching mir
 }
 
 fn main() {}
diff --git a/tests/run-make/short-ice/rmake.rs b/tests/run-make/short-ice/rmake.rs
index 483def62fc7..dbe0f692aef 100644
--- a/tests/run-make/short-ice/rmake.rs
+++ b/tests/run-make/short-ice/rmake.rs
@@ -5,9 +5,12 @@
 // See https://github.com/rust-lang/rust/issues/107910
 
 //@ needs-target-std
-//@ ignore-i686-pc-windows-msvc
-// Reason: the assert_eq! on line 37 fails, almost seems like it missing debug info?
-// Haven't been able to reproduce locally, but it happens on CI.
+//@ ignore-windows-msvc
+//
+// - FIXME(#143198): On `i686-pc-windows-msvc`: the assert_eq! on line 37 fails, almost seems like
+//   it missing debug info? Haven't been able to reproduce locally, but it happens on CI.
+// - FIXME(#143198): On `x86_64-pc-windows-msvc`: full backtrace sometimes do not contain matching
+//   count of short backtrace markers (e.g. 5x end marker, but 3x start marker).
 
 use run_make_support::rustc;
 
diff --git a/tests/rustdoc-json/attrs/link_section_2021.rs b/tests/rustdoc-json/attrs/link_section_2021.rs
new file mode 100644
index 00000000000..a1312f4210b
--- /dev/null
+++ b/tests/rustdoc-json/attrs/link_section_2021.rs
@@ -0,0 +1,6 @@
+//@ edition: 2021
+#![no_std]
+
+//@ is "$.index[?(@.name=='example')].attrs" '["#[link_section = \".text\"]"]'
+#[link_section = ".text"]
+pub extern "C" fn example() {}
diff --git a/tests/rustdoc-json/attrs/link_section_2024.rs b/tests/rustdoc-json/attrs/link_section_2024.rs
new file mode 100644
index 00000000000..edb028451a8
--- /dev/null
+++ b/tests/rustdoc-json/attrs/link_section_2024.rs
@@ -0,0 +1,9 @@
+//@ edition: 2024
+#![no_std]
+
+// Since the 2024 edition the link_section attribute must use the unsafe qualification.
+// However, the unsafe qualification is not shown by rustdoc.
+
+//@ is "$.index[?(@.name=='example')].attrs" '["#[link_section = \".text\"]"]'
+#[unsafe(link_section = ".text")]
+pub extern "C" fn example() {}
diff --git a/tests/rustdoc-ui/invalid_infered_static_and_const.stderr b/tests/rustdoc-ui/invalid_infered_static_and_const.stderr
index 401020224d6..3e116826c49 100644
--- a/tests/rustdoc-ui/invalid_infered_static_and_const.stderr
+++ b/tests/rustdoc-ui/invalid_infered_static_and_const.stderr
@@ -1,10 +1,10 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
   --> $DIR/invalid_infered_static_and_const.rs:1:24
    |
 LL | const FOO: dyn Fn() -> _ = "";
    |                        ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/invalid_infered_static_and_const.rs:2:25
    |
 LL | static BOO: dyn Fn() -> _ = "";
diff --git a/tests/ui-fulldeps/stable-mir/check_allocation.rs b/tests/ui-fulldeps/stable-mir/check_allocation.rs
index 692c24f0544..64194e72888 100644
--- a/tests/ui-fulldeps/stable-mir/check_allocation.rs
+++ b/tests/ui-fulldeps/stable-mir/check_allocation.rs
@@ -19,12 +19,6 @@ extern crate rustc_driver;
 extern crate rustc_interface;
 extern crate stable_mir;
 
-use stable_mir::crate_def::CrateDef;
-use stable_mir::mir::alloc::GlobalAlloc;
-use stable_mir::mir::mono::{Instance, InstanceKind, StaticDef};
-use stable_mir::mir::{Body, TerminatorKind};
-use stable_mir::ty::{Allocation, ConstantKind, RigidTy, TyKind};
-use stable_mir::{CrateItem, CrateItems, ItemKind};
 use std::ascii::Char;
 use std::assert_matches::assert_matches;
 use std::cmp::{max, min};
@@ -33,6 +27,13 @@ use std::ffi::CStr;
 use std::io::Write;
 use std::ops::ControlFlow;
 
+use stable_mir::crate_def::CrateDef;
+use stable_mir::mir::Body;
+use stable_mir::mir::alloc::GlobalAlloc;
+use stable_mir::mir::mono::{Instance, StaticDef};
+use stable_mir::ty::{Allocation, ConstantKind};
+use stable_mir::{CrateItem, CrateItems, ItemKind};
+
 const CRATE_NAME: &str = "input";
 
 /// This function uses the Stable MIR APIs to get information about the test crate.
@@ -44,7 +45,6 @@ fn test_stable_mir() -> ControlFlow<()> {
     check_len(*get_item(&items, (ItemKind::Static, "LEN")).unwrap());
     check_cstr(*get_item(&items, (ItemKind::Static, "C_STR")).unwrap());
     check_other_consts(*get_item(&items, (ItemKind::Fn, "other_consts")).unwrap());
-    check_type_id(*get_item(&items, (ItemKind::Fn, "check_type_id")).unwrap());
     ControlFlow::Continue(())
 }
 
@@ -107,7 +107,9 @@ fn check_other_consts(item: CrateItem) {
     // Instance body will force constant evaluation.
     let body = Instance::try_from(item).unwrap().body().unwrap();
     let assigns = collect_consts(&body);
-    assert_eq!(assigns.len(), 8);
+    assert_eq!(assigns.len(), 10);
+    let mut char_id = None;
+    let mut bool_id = None;
     for (name, alloc) in assigns {
         match name.as_str() {
             "_max_u128" => {
@@ -149,35 +151,21 @@ fn check_other_consts(item: CrateItem) {
                 assert_eq!(max(first, second) as u32, u32::MAX);
                 assert_eq!(min(first, second), 10);
             }
+            "_bool_id" => {
+                bool_id = Some(alloc);
+            }
+            "_char_id" => {
+                char_id = Some(alloc);
+            }
             _ => {
                 unreachable!("{name} -- {alloc:?}")
             }
         }
     }
-}
-
-/// Check that we can retrieve the type id of char and bool, and that they have different values.
-fn check_type_id(item: CrateItem) {
-    let body = Instance::try_from(item).unwrap().body().unwrap();
-    let mut ids: Vec<u128> = vec![];
-    for term in body.blocks.iter().map(|bb| &bb.terminator) {
-        match &term.kind {
-            TerminatorKind::Call { func, destination, .. } => {
-                let TyKind::RigidTy(ty) = func.ty(body.locals()).unwrap().kind() else {
-                    unreachable!()
-                };
-                let RigidTy::FnDef(def, args) = ty else { unreachable!() };
-                let instance = Instance::resolve(def, &args).unwrap();
-                assert_eq!(instance.kind, InstanceKind::Intrinsic);
-                let dest_ty = destination.ty(body.locals()).unwrap();
-                let alloc = instance.try_const_eval(dest_ty).unwrap();
-                ids.push(alloc.read_uint().unwrap());
-            }
-            _ => { /* Do nothing */ }
-        }
-    }
-    assert_eq!(ids.len(), 2);
-    assert_ne!(ids[0], ids[1]);
+    let bool_id = bool_id.unwrap();
+    let char_id = char_id.unwrap();
+    // FIXME(stable_mir): add `read_ptr` to `Allocation`
+    assert_ne!(bool_id, char_id);
 }
 
 /// Collects all the constant assignments.
@@ -235,6 +223,7 @@ fn generate_input(path: &str) -> std::io::Result<()> {
         file,
         r#"
     #![feature(core_intrinsics)]
+    #![expect(internal_features)]
     use std::intrinsics::type_id;
 
     static LEN: usize = 2;
@@ -254,11 +243,8 @@ fn generate_input(path: &str) -> std::io::Result<()> {
         let _ptr = &BAR;
         let _null_ptr: *const u8 = NULL;
         let _tuple = TUPLE;
-    }}
-
-    fn check_type_id() {{
-        let _char_id = type_id::<char>();
-        let _bool_id = type_id::<bool>();
+        let _char_id = const {{ type_id::<char>() }};
+        let _bool_id = const {{ type_id::<bool>() }};
     }}
 
     pub fn main() {{
diff --git a/tests/ui/SUMMARY.md b/tests/ui/SUMMARY.md
index 72b673dd50a..8de74d41f39 100644
--- a/tests/ui/SUMMARY.md
+++ b/tests/ui/SUMMARY.md
@@ -484,10 +484,6 @@ The `dyn` keyword is used to highlight that calls to methods on the associated T
 
 See [`dyn` keyword](https://doc.rust-lang.org/std/keyword.dyn.html).
 
-## `tests/ui/dyn-star/`: `dyn*`, Sized `dyn`, `#![feature(dyn_star)]`
-
-See [Tracking issue for dyn-star #102425](https://github.com/rust-lang/rust/issues/102425).
-
 ## `tests/ui/editions/`: Rust edition-specific peculiarities
 
 These tests run in specific Rust editions, such as Rust 2015 or Rust 2018, and check errors and functionality related to specific now-deprecated idioms and features.
diff --git a/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.rs b/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.rs
index a718eb23bed..e583b12b1d7 100644
--- a/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.rs
+++ b/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.rs
@@ -12,7 +12,7 @@ fn take(
         K = { () }
     >,
 ) {}
-//~^^^^^^ ERROR implementation of `Project` is not general enough
+//~^^^^^ ERROR implementation of `Project` is not general enough
 //~^^^^ ERROR higher-ranked subtype error
 //~| ERROR higher-ranked subtype error
 
diff --git a/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.stderr b/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.stderr
index 967814c9c3d..42e084f39c0 100644
--- a/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.stderr
+++ b/tests/ui/associated-consts/assoc-const-eq-bound-var-in-ty-not-wf.stderr
@@ -13,10 +13,14 @@ LL |         K = { () }
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: implementation of `Project` is not general enough
-  --> $DIR/assoc-const-eq-bound-var-in-ty-not-wf.rs:9:4
+  --> $DIR/assoc-const-eq-bound-var-in-ty-not-wf.rs:10:13
    |
-LL | fn take(
-   |    ^^^^ implementation of `Project` is not general enough
+LL |       _: impl Trait<
+   |  _____________^
+LL | |         <<for<'a> fn(&'a str) -> &'a str as Project>::Out as Discard>::Out,
+LL | |         K = { () }
+LL | |     >,
+   | |_____^ implementation of `Project` is not general enough
    |
    = note: `Project` would have to be implemented for the type `for<'a> fn(&'a str) -> &'a str`
    = note: ...but `Project` is actually implemented for the type `fn(&'0 str) -> &'0 str`, for some specific lifetime `'0`
diff --git a/tests/ui/associated-inherent-types/issue-111879-0.stderr b/tests/ui/associated-inherent-types/issue-111879-0.stderr
index f60fd58c23b..144f6486b3b 100644
--- a/tests/ui/associated-inherent-types/issue-111879-0.stderr
+++ b/tests/ui/associated-inherent-types/issue-111879-0.stderr
@@ -1,8 +1,8 @@
 error: overflow evaluating associated type `Carrier<'b>::Focus<i32>`
-  --> $DIR/issue-111879-0.rs:9:25
+  --> $DIR/issue-111879-0.rs:9:5
    |
 LL |     pub type Focus<T> = &'a mut for<'b> fn(Carrier<'b>::Focus<i32>);
-   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^^
 
 error: aborting due to 1 previous error
 
diff --git a/tests/ui/associated-inherent-types/normalization-overflow.stderr b/tests/ui/associated-inherent-types/normalization-overflow.stderr
index 7f991a53c9b..05aad31c5f4 100644
--- a/tests/ui/associated-inherent-types/normalization-overflow.stderr
+++ b/tests/ui/associated-inherent-types/normalization-overflow.stderr
@@ -1,8 +1,8 @@
 error: overflow evaluating associated type `T::This`
-  --> $DIR/normalization-overflow.rs:9:17
+  --> $DIR/normalization-overflow.rs:9:5
    |
 LL |     type This = Self::This;
-   |                 ^^^^^^^^^^
+   |     ^^^^^^^^^
 
 error: aborting due to 1 previous error
 
diff --git a/tests/ui/associated-inherent-types/regionck-1.stderr b/tests/ui/associated-inherent-types/regionck-1.stderr
index 62a00868248..4e0ecc3c80e 100644
--- a/tests/ui/associated-inherent-types/regionck-1.stderr
+++ b/tests/ui/associated-inherent-types/regionck-1.stderr
@@ -1,10 +1,11 @@
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/regionck-1.rs:9:30
+  --> $DIR/regionck-1.rs:9:5
    |
 LL |     type NoTyOutliv<'a, T> = &'a T;
-   |                     --       ^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
-   |                     |
-   |                     the parameter type `T` must be valid for the lifetime `'a` as defined here...
+   |     ^^^^^^^^^^^^^^^^--^^^^
+   |     |               |
+   |     |               the parameter type `T` must be valid for the lifetime `'a` as defined here...
+   |     ...so that the reference type `&'a T` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
@@ -12,10 +13,10 @@ LL |     type NoTyOutliv<'a, T: 'a> = &'a T;
    |                          ++++
 
 error[E0491]: in type `&'a &'b ()`, reference has a longer lifetime than the data it references
-  --> $DIR/regionck-1.rs:10:31
+  --> $DIR/regionck-1.rs:10:5
    |
 LL |     type NoReOutliv<'a, 'b> = &'a &'b ();
-   |                               ^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/regionck-1.rs:10:21
diff --git a/tests/ui/associated-types/impl-wf-cycle-4.stderr b/tests/ui/associated-types/impl-wf-cycle-4.stderr
index c966579aecf..fac06e64a31 100644
--- a/tests/ui/associated-types/impl-wf-cycle-4.stderr
+++ b/tests/ui/associated-types/impl-wf-cycle-4.stderr
@@ -1,4 +1,4 @@
-error[E0391]: cycle detected when computing normalized predicates of `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>`
+error[E0391]: cycle detected when computing whether `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` has a guaranteed unsized self type
   --> $DIR/impl-wf-cycle-4.rs:5:1
    |
 LL | / impl<T> Filter for T
@@ -6,14 +6,14 @@ LL | | where
 LL | |     T: Fn(Self::ToMatch),
    | |_________________________^
    |
-note: ...which requires computing whether `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` has a guaranteed unsized self type...
+note: ...which requires computing normalized predicates of `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>`...
   --> $DIR/impl-wf-cycle-4.rs:5:1
    |
 LL | / impl<T> Filter for T
 LL | | where
 LL | |     T: Fn(Self::ToMatch),
    | |_________________________^
-   = note: ...which again requires computing normalized predicates of `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>`, completing the cycle
+   = note: ...which again requires computing whether `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` has a guaranteed unsized self type, completing the cycle
 note: cycle used when checking that `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` is well-formed
   --> $DIR/impl-wf-cycle-4.rs:5:1
    |
diff --git a/tests/ui/associated-types/issue-38821.rs b/tests/ui/associated-types/issue-38821.rs
index c9be1369f16..60d3b224a5b 100644
--- a/tests/ui/associated-types/issue-38821.rs
+++ b/tests/ui/associated-types/issue-38821.rs
@@ -32,16 +32,16 @@ pub trait Column: Expression {}
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
+pub enum ColumnInsertValue<Col, Expr> where
+//~^ ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
+    Col: Column,
+    Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+//~^ ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
 //~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-pub enum ColumnInsertValue<Col, Expr> where
-//~^ ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-    Col: Column,
-    Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
 {
     Expression(Col, Expr),
     Default(Col),
diff --git a/tests/ui/associated-types/issue-38821.stderr b/tests/ui/associated-types/issue-38821.stderr
index 8a19142b730..b03a3cf7f47 100644
--- a/tests/ui/associated-types/issue-38821.stderr
+++ b/tests/ui/associated-types/issue-38821.stderr
@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:40:1
+  --> $DIR/issue-38821.rs:35:1
    |
 LL | pub enum ColumnInsertValue<Col, Expr> where
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
@@ -17,16 +17,10 @@ LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Co
    |                                                                         +++++++++++++++++++++++++++++++++++++
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:40:1
+  --> $DIR/issue-38821.rs:38:22
    |
-LL | / pub enum ColumnInsertValue<Col, Expr> where
-LL | |
-LL | |
-LL | |     Col: Column,
-...  |
-LL | |     Default(Col),
-LL | | }
-   | |_^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
    |
 note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
   --> $DIR/issue-38821.rs:9:18
@@ -71,11 +65,6 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
-help: consider further restricting the associated type
-   |
-LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
-   |                                                                       +++++++++++++++++++++++++++++++++++++++
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
   --> $DIR/issue-38821.rs:23:10
@@ -90,12 +79,13 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
+   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:23:10
+  --> $DIR/issue-38821.rs:38:22
    |
-LL | #[derive(Debug, Copy, Clone)]
-   |          ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
    |
 note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
   --> $DIR/issue-38821.rs:9:18
@@ -104,7 +94,10 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
+help: consider further restricting the associated type
+   |
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
+   |                                                                       +++++++++++++++++++++++++++++++++++++++
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
   --> $DIR/issue-38821.rs:23:17
@@ -125,10 +118,10 @@ LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Co
    |                                                                       +++++++++++++++++++++++++++++++++++++++
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:23:17
+  --> $DIR/issue-38821.rs:38:22
    |
-LL | #[derive(Debug, Copy, Clone)]
-   |                 ^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
    |
 note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
   --> $DIR/issue-38821.rs:9:18
@@ -137,7 +130,6 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: consider further restricting the associated type
    |
 LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
@@ -174,11 +166,6 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
-help: consider further restricting the associated type
-   |
-LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
-   |                                                                       +++++++++++++++++++++++++++++++++++++++
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
   --> $DIR/issue-38821.rs:23:23
@@ -193,12 +180,13 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
+   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:23:23
+  --> $DIR/issue-38821.rs:38:22
    |
-LL | #[derive(Debug, Copy, Clone)]
-   |                       ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
    |
 note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
   --> $DIR/issue-38821.rs:9:18
@@ -207,7 +195,10 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
+help: consider further restricting the associated type
+   |
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Col as Expression>::SqlType: NotNull,
+   |                                                                       +++++++++++++++++++++++++++++++++++++++
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
   --> $DIR/issue-38821.rs:23:10
@@ -225,10 +216,10 @@ LL | impl<T: NotNull> IntoNullable for T {
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:23:10
+  --> $DIR/issue-38821.rs:38:22
    |
-LL | #[derive(Debug, Copy, Clone)]
-   |          ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
    |
 note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
   --> $DIR/issue-38821.rs:9:18
@@ -237,7 +228,6 @@ LL | impl<T: NotNull> IntoNullable for T {
    |         -------  ^^^^^^^^^^^^     ^
    |         |
    |         unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
   --> $DIR/issue-38821.rs:23:23
@@ -255,10 +245,10 @@ LL | impl<T: NotNull> IntoNullable for T {
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
-  --> $DIR/issue-38821.rs:23:23
+  --> $DIR/issue-38821.rs:38:22
    |
-LL | #[derive(Debug, Copy, Clone)]
-   |                       ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
+LL |     Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>,
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`
    |
 note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
   --> $DIR/issue-38821.rs:9:18
diff --git a/tests/ui/associated-types/issue-59324.rs b/tests/ui/associated-types/issue-59324.rs
index 3abe8473052..9d4c7cb39ae 100644
--- a/tests/ui/associated-types/issue-59324.rs
+++ b/tests/ui/associated-types/issue-59324.rs
@@ -10,8 +10,8 @@ pub trait Service {
 
 pub trait ThriftService<Bug: NotFoo>:
 //~^ ERROR the trait bound `Bug: Foo` is not satisfied
-//~| ERROR the trait bound `Bug: Foo` is not satisfied
     Service<AssocType = <Bug as Foo>::OnlyFoo>
+//~^ ERROR the trait bound `Bug: Foo` is not satisfied
 {
     fn get_service(
     //~^ ERROR the trait bound `Bug: Foo` is not satisfied
diff --git a/tests/ui/associated-types/issue-59324.stderr b/tests/ui/associated-types/issue-59324.stderr
index f79afc89d10..3e2b0f41889 100644
--- a/tests/ui/associated-types/issue-59324.stderr
+++ b/tests/ui/associated-types/issue-59324.stderr
@@ -2,7 +2,7 @@ error[E0277]: the trait bound `Bug: Foo` is not satisfied
   --> $DIR/issue-59324.rs:11:1
    |
 LL | / pub trait ThriftService<Bug: NotFoo>:
-...  |
+LL | |
 LL | |     Service<AssocType = <Bug as Foo>::OnlyFoo>
    | |______________________________________________^ the trait `Foo` is not implemented for `Bug`
    |
@@ -12,15 +12,10 @@ LL | pub trait ThriftService<Bug: NotFoo + Foo>:
    |                                     +++++
 
 error[E0277]: the trait bound `Bug: Foo` is not satisfied
-  --> $DIR/issue-59324.rs:11:1
+  --> $DIR/issue-59324.rs:13:13
    |
-LL | / pub trait ThriftService<Bug: NotFoo>:
-LL | |
-LL | |
-LL | |     Service<AssocType = <Bug as Foo>::OnlyFoo>
-...  |
-LL | | }
-   | |_^ the trait `Foo` is not implemented for `Bug`
+LL |     Service<AssocType = <Bug as Foo>::OnlyFoo>
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Foo` is not implemented for `Bug`
    |
 help: consider further restricting type parameter `Bug` with trait `Foo`
    |
diff --git a/tests/ui/async-await/async-fn/impl-header.stderr b/tests/ui/async-await/async-fn/impl-header.stderr
index 64a98aab17b..2fc7a900a1e 100644
--- a/tests/ui/async-await/async-fn/impl-header.stderr
+++ b/tests/ui/async-await/async-fn/impl-header.stderr
@@ -22,6 +22,14 @@ LL | impl async Fn<()> for F {}
    |
    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
 
+error[E0046]: not all trait items implemented, missing: `call`
+  --> $DIR/impl-header.rs:5:1
+   |
+LL | impl async Fn<()> for F {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^ missing `call` in implementation
+   |
+   = help: implement the missing item: `fn call(&self, _: ()) -> <Self as FnOnce<()>>::Output { todo!() }`
+
 error[E0277]: expected a `FnMut()` closure, found `F`
   --> $DIR/impl-header.rs:5:23
    |
@@ -33,14 +41,6 @@ LL | impl async Fn<()> for F {}
 note: required by a bound in `Fn`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
-error[E0046]: not all trait items implemented, missing: `call`
-  --> $DIR/impl-header.rs:5:1
-   |
-LL | impl async Fn<()> for F {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^ missing `call` in implementation
-   |
-   = help: implement the missing item: `fn call(&self, _: ()) -> <Self as FnOnce<()>>::Output { todo!() }`
-
 error: aborting due to 5 previous errors
 
 Some errors have detailed explanations: E0046, E0183, E0277, E0658.
diff --git a/tests/ui/attributes/inner-attrs-impl-cfg.rs b/tests/ui/attributes/inner-attrs-impl-cfg.rs
new file mode 100644
index 00000000000..e7a5cfa9e2f
--- /dev/null
+++ b/tests/ui/attributes/inner-attrs-impl-cfg.rs
@@ -0,0 +1,36 @@
+//! Test inner attributes (#![...]) behavior in impl blocks with cfg conditions.
+//!
+//! This test verifies that:
+//! - Inner attributes can conditionally exclude entire impl blocks
+//! - Regular attributes within impl blocks work independently
+//! - Attribute parsing doesn't consume too eagerly
+
+//@ run-pass
+
+struct Foo;
+
+impl Foo {
+    #![cfg(false)]
+
+    fn method(&self) -> bool {
+        false
+    }
+}
+
+impl Foo {
+    #![cfg(not(FALSE))]
+
+    // Check that we don't eat attributes too eagerly.
+    #[cfg(false)]
+    fn method(&self) -> bool {
+        false
+    }
+
+    fn method(&self) -> bool {
+        true
+    }
+}
+
+pub fn main() {
+    assert!(Foo.method());
+}
diff --git a/tests/ui/attributes/malformed-attrs.rs b/tests/ui/attributes/malformed-attrs.rs
new file mode 100644
index 00000000000..64c0d223f83
--- /dev/null
+++ b/tests/ui/attributes/malformed-attrs.rs
@@ -0,0 +1,221 @@
+// This file contains a bunch of malformed attributes.
+// We enable a bunch of features to not get feature-gate errs in this test.
+#![feature(rustc_attrs)]
+#![feature(rustc_allow_const_fn_unstable)]
+#![feature(allow_internal_unstable)]
+#![feature(fn_align)]
+#![feature(optimize_attribute)]
+#![feature(dropck_eyepatch)]
+#![feature(export_stable)]
+#![allow(incomplete_features)]
+#![feature(min_generic_const_args)]
+#![feature(ffi_const, ffi_pure)]
+#![feature(coverage_attribute)]
+#![feature(no_sanitize)]
+#![feature(marker_trait_attr)]
+#![feature(thread_local)]
+#![feature(must_not_suspend)]
+#![feature(coroutines)]
+#![feature(linkage)]
+#![feature(cfi_encoding, extern_types)]
+#![feature(patchable_function_entry)]
+#![feature(omit_gdb_pretty_printer_section)]
+#![feature(fundamental)]
+
+
+#![omit_gdb_pretty_printer_section = 1]
+//~^ ERROR malformed `omit_gdb_pretty_printer_section` attribute input
+
+#![windows_subsystem]
+//~^ ERROR malformed
+
+#[unsafe(export_name)]
+//~^ ERROR malformed
+#[rustc_allow_const_fn_unstable]
+//~^ ERROR `rustc_allow_const_fn_unstable` expects a list of feature names
+#[allow_internal_unstable]
+//~^ ERROR `allow_internal_unstable` expects a list of feature names
+#[rustc_confusables]
+//~^ ERROR malformed
+#[deprecated = 5]
+//~^ ERROR malformed
+#[doc]
+//~^ ERROR valid forms for the attribute are
+//~| WARN this was previously accepted by the compiler
+#[rustc_macro_transparency]
+//~^ ERROR malformed
+#[repr]
+//~^ ERROR malformed
+#[rustc_as_ptr = 5]
+//~^ ERROR malformed
+#[inline = 5]
+//~^ ERROR valid forms for the attribute are
+//~| WARN this was previously accepted by the compiler
+#[align]
+//~^ ERROR malformed
+#[optimize]
+//~^ ERROR malformed
+#[cold = 1]
+//~^ ERROR malformed
+#[must_use()]
+//~^ ERROR valid forms for the attribute are
+#[no_mangle = 1]
+//~^ ERROR malformed
+#[unsafe(naked())]
+//~^ ERROR malformed
+#[track_caller()]
+//~^ ERROR malformed
+#[export_name()]
+//~^ ERROR malformed
+#[used()]
+//~^ ERROR malformed
+#[crate_name]
+//~^ ERROR malformed
+#[doc]
+//~^ ERROR valid forms for the attribute are
+//~| WARN this was previously accepted by the compiler
+#[target_feature]
+//~^ ERROR malformed
+#[export_stable = 1]
+//~^ ERROR malformed
+#[link]
+//~^ ERROR attribute must be of the form
+//~| WARN this was previously accepted by the compiler
+#[link_name]
+//~^ ERROR malformed
+#[link_section]
+//~^ ERROR malformed
+#[coverage]
+//~^ ERROR malformed `coverage` attribute input
+#[no_sanitize]
+//~^ ERROR malformed
+#[ignore()]
+//~^ ERROR valid forms for the attribute are
+//~| WARN this was previously accepted by the compiler
+#[no_implicit_prelude = 23]
+//~^ ERROR malformed
+#[proc_macro = 18]
+//~^ ERROR malformed
+//~| ERROR the `#[proc_macro]` attribute is only usable with crates of the `proc-macro` crate type
+#[cfg]
+//~^ ERROR is not followed by parentheses
+#[cfg_attr]
+//~^ ERROR malformed
+#[instruction_set]
+//~^ ERROR malformed
+#[patchable_function_entry]
+//~^ ERROR malformed
+fn test() {
+    #[coroutine = 63] || {}
+    //~^ ERROR malformed `coroutine` attribute input
+    //~| ERROR mismatched types [E0308]
+}
+
+#[proc_macro_attribute = 19]
+//~^ ERROR malformed
+//~| ERROR the `#[proc_macro_attribute]` attribute is only usable with crates of the `proc-macro` crate type
+#[must_use = 1]
+//~^ ERROR malformed
+fn test2() { }
+
+#[proc_macro_derive]
+//~^ ERROR malformed `proc_macro_derive` attribute
+//~| ERROR the `#[proc_macro_derive]` attribute is only usable with crates of the `proc-macro` crate type
+pub fn test3() {}
+
+#[rustc_layout_scalar_valid_range_start]
+//~^ ERROR malformed
+#[rustc_layout_scalar_valid_range_end]
+//~^ ERROR malformed
+#[must_not_suspend()]
+//~^ ERROR malformed
+#[cfi_encoding]
+//~^ ERROR malformed
+struct Test;
+
+#[diagnostic::on_unimplemented]
+//~^ WARN missing options for `on_unimplemented` attribute
+#[diagnostic::on_unimplemented = 1]
+//~^ WARN malformed
+trait Hey {
+    #[type_const = 1]
+    //~^ ERROR malformed
+    const HEY: usize = 5;
+}
+
+struct Empty;
+#[diagnostic::do_not_recommend()]
+//~^ WARN does not expect any arguments
+impl Hey for Empty {
+
+}
+
+#[marker = 3]
+//~^ ERROR malformed
+#[fundamental()]
+//~^ ERROR malformed
+trait EmptyTrait {
+
+}
+
+
+extern "C" {
+    #[unsafe(ffi_pure = 1)]
+    //~^ ERROR malformed
+    #[link_ordinal]
+    //~^ ERROR malformed
+    pub fn baz();
+
+    #[unsafe(ffi_const = 1)]
+    //~^ ERROR malformed
+    #[linkage]
+    //~^ ERROR malformed
+    pub fn bar();
+}
+
+#[allow]
+//~^ ERROR malformed
+#[expect]
+//~^ ERROR malformed
+#[warn]
+//~^ ERROR malformed
+#[deny]
+//~^ ERROR malformed
+#[forbid]
+//~^ ERROR malformed
+#[debugger_visualizer]
+//~^ ERROR invalid argument
+//~| ERROR malformed `debugger_visualizer` attribute input
+#[automatically_derived = 18]
+//~^ ERROR malformed
+mod yooo {
+
+}
+
+#[non_exhaustive = 1]
+//~^ ERROR malformed
+enum Slenum {
+
+}
+
+#[thread_local()]
+//~^ ERROR malformed
+static mut TLS: u8 = 42;
+
+#[no_link()]
+//~^ ERROR malformed
+#[macro_use = 1]
+//~^ ERROR malformed
+extern crate wloop;
+//~^ ERROR can't find crate for `wloop` [E0463]
+
+#[macro_export = 18]
+//~^ ERROR malformed `macro_export` attribute input
+#[allow_internal_unsafe = 1]
+//~^ ERROR malformed
+//~| ERROR allow_internal_unsafe side-steps the unsafe_code lint
+macro_rules! slump {
+    () => {}
+}
+
+fn main() {}
diff --git a/tests/ui/attributes/malformed-attrs.stderr b/tests/ui/attributes/malformed-attrs.stderr
new file mode 100644
index 00000000000..bf063e8f6e5
--- /dev/null
+++ b/tests/ui/attributes/malformed-attrs.stderr
@@ -0,0 +1,596 @@
+error: `cfg` is not followed by parentheses
+  --> $DIR/malformed-attrs.rs:100:1
+   |
+LL | #[cfg]
+   | ^^^^^^ help: expected syntax is: `cfg(/* predicate */)`
+
+error: malformed `cfg_attr` attribute input
+  --> $DIR/malformed-attrs.rs:102:1
+   |
+LL | #[cfg_attr]
+   | ^^^^^^^^^^^
+   |
+   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
+help: missing condition and attribute
+   |
+LL | #[cfg_attr(condition, attribute, other_attribute, ...)]
+   |           ++++++++++++++++++++++++++++++++++++++++++++
+
+error[E0463]: can't find crate for `wloop`
+  --> $DIR/malformed-attrs.rs:209:1
+   |
+LL | extern crate wloop;
+   | ^^^^^^^^^^^^^^^^^^^ can't find crate
+
+error: malformed `omit_gdb_pretty_printer_section` attribute input
+  --> $DIR/malformed-attrs.rs:26:1
+   |
+LL | #![omit_gdb_pretty_printer_section = 1]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![omit_gdb_pretty_printer_section]`
+
+error: malformed `windows_subsystem` attribute input
+  --> $DIR/malformed-attrs.rs:29:1
+   |
+LL | #![windows_subsystem]
+   | ^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![windows_subsystem = "windows|console"]`
+
+error: malformed `crate_name` attribute input
+  --> $DIR/malformed-attrs.rs:72:1
+   |
+LL | #[crate_name]
+   | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]`
+
+error: malformed `target_feature` attribute input
+  --> $DIR/malformed-attrs.rs:77:1
+   |
+LL | #[target_feature]
+   | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[target_feature(enable = "name")]`
+
+error: malformed `export_stable` attribute input
+  --> $DIR/malformed-attrs.rs:79:1
+   |
+LL | #[export_stable = 1]
+   | ^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_stable]`
+
+error: malformed `coverage` attribute input
+  --> $DIR/malformed-attrs.rs:88:1
+   |
+LL | #[coverage]
+   | ^^^^^^^^^^^
+   |
+help: the following are the possible correct uses
+   |
+LL | #[coverage(off)]
+   |           +++++
+LL | #[coverage(on)]
+   |           ++++
+
+error: malformed `no_sanitize` attribute input
+  --> $DIR/malformed-attrs.rs:90:1
+   |
+LL | #[no_sanitize]
+   | ^^^^^^^^^^^^^^ help: must be of the form: `#[no_sanitize(address, kcfi, memory, thread)]`
+
+error: malformed `no_implicit_prelude` attribute input
+  --> $DIR/malformed-attrs.rs:95:1
+   |
+LL | #[no_implicit_prelude = 23]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[no_implicit_prelude]`
+
+error: malformed `proc_macro` attribute input
+  --> $DIR/malformed-attrs.rs:97:1
+   |
+LL | #[proc_macro = 18]
+   | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro]`
+
+error: malformed `instruction_set` attribute input
+  --> $DIR/malformed-attrs.rs:104:1
+   |
+LL | #[instruction_set]
+   | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[instruction_set(set)]`
+
+error: malformed `patchable_function_entry` attribute input
+  --> $DIR/malformed-attrs.rs:106:1
+   |
+LL | #[patchable_function_entry]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[patchable_function_entry(prefix_nops = m, entry_nops = n)]`
+
+error: malformed `coroutine` attribute input
+  --> $DIR/malformed-attrs.rs:109:5
+   |
+LL |     #[coroutine = 63] || {}
+   |     ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[coroutine]`
+
+error: malformed `proc_macro_attribute` attribute input
+  --> $DIR/malformed-attrs.rs:114:1
+   |
+LL | #[proc_macro_attribute = 19]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro_attribute]`
+
+error: malformed `proc_macro_derive` attribute input
+  --> $DIR/malformed-attrs.rs:121:1
+   |
+LL | #[proc_macro_derive]
+   | ^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro_derive(TraitName, /*opt*/ attributes(name1, name2, ...))]`
+
+error: malformed `must_not_suspend` attribute input
+  --> $DIR/malformed-attrs.rs:130:1
+   |
+LL | #[must_not_suspend()]
+   | ^^^^^^^^^^^^^^^^^^^^^
+   |
+help: the following are the possible correct uses
+   |
+LL - #[must_not_suspend()]
+LL + #[must_not_suspend = "reason"]
+   |
+LL - #[must_not_suspend()]
+LL + #[must_not_suspend]
+   |
+
+error: malformed `cfi_encoding` attribute input
+  --> $DIR/malformed-attrs.rs:132:1
+   |
+LL | #[cfi_encoding]
+   | ^^^^^^^^^^^^^^^ help: must be of the form: `#[cfi_encoding = "encoding"]`
+
+error: malformed `type_const` attribute input
+  --> $DIR/malformed-attrs.rs:141:5
+   |
+LL |     #[type_const = 1]
+   |     ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[type_const]`
+
+error: malformed `marker` attribute input
+  --> $DIR/malformed-attrs.rs:153:1
+   |
+LL | #[marker = 3]
+   | ^^^^^^^^^^^^^ help: must be of the form: `#[marker]`
+
+error: malformed `fundamental` attribute input
+  --> $DIR/malformed-attrs.rs:155:1
+   |
+LL | #[fundamental()]
+   | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[fundamental]`
+
+error: malformed `ffi_pure` attribute input
+  --> $DIR/malformed-attrs.rs:163:5
+   |
+LL |     #[unsafe(ffi_pure = 1)]
+   |     ^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[ffi_pure]`
+
+error: malformed `link_ordinal` attribute input
+  --> $DIR/malformed-attrs.rs:165:5
+   |
+LL |     #[link_ordinal]
+   |     ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_ordinal(ordinal)]`
+
+error: malformed `ffi_const` attribute input
+  --> $DIR/malformed-attrs.rs:169:5
+   |
+LL |     #[unsafe(ffi_const = 1)]
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[ffi_const]`
+
+error: malformed `linkage` attribute input
+  --> $DIR/malformed-attrs.rs:171:5
+   |
+LL |     #[linkage]
+   |     ^^^^^^^^^^ help: must be of the form: `#[linkage = "external|internal|..."]`
+
+error: malformed `allow` attribute input
+  --> $DIR/malformed-attrs.rs:176:1
+   |
+LL | #[allow]
+   | ^^^^^^^^ help: must be of the form: `#[allow(lint1, lint2, ..., /*opt*/ reason = "...")]`
+
+error: malformed `expect` attribute input
+  --> $DIR/malformed-attrs.rs:178:1
+   |
+LL | #[expect]
+   | ^^^^^^^^^ help: must be of the form: `#[expect(lint1, lint2, ..., /*opt*/ reason = "...")]`
+
+error: malformed `warn` attribute input
+  --> $DIR/malformed-attrs.rs:180:1
+   |
+LL | #[warn]
+   | ^^^^^^^ help: must be of the form: `#[warn(lint1, lint2, ..., /*opt*/ reason = "...")]`
+
+error: malformed `deny` attribute input
+  --> $DIR/malformed-attrs.rs:182:1
+   |
+LL | #[deny]
+   | ^^^^^^^ help: must be of the form: `#[deny(lint1, lint2, ..., /*opt*/ reason = "...")]`
+
+error: malformed `forbid` attribute input
+  --> $DIR/malformed-attrs.rs:184:1
+   |
+LL | #[forbid]
+   | ^^^^^^^^^ help: must be of the form: `#[forbid(lint1, lint2, ..., /*opt*/ reason = "...")]`
+
+error: malformed `debugger_visualizer` attribute input
+  --> $DIR/malformed-attrs.rs:186:1
+   |
+LL | #[debugger_visualizer]
+   | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]`
+
+error: malformed `automatically_derived` attribute input
+  --> $DIR/malformed-attrs.rs:189:1
+   |
+LL | #[automatically_derived = 18]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[automatically_derived]`
+
+error: malformed `non_exhaustive` attribute input
+  --> $DIR/malformed-attrs.rs:195:1
+   |
+LL | #[non_exhaustive = 1]
+   | ^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[non_exhaustive]`
+
+error: malformed `thread_local` attribute input
+  --> $DIR/malformed-attrs.rs:201:1
+   |
+LL | #[thread_local()]
+   | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[thread_local]`
+
+error: malformed `no_link` attribute input
+  --> $DIR/malformed-attrs.rs:205:1
+   |
+LL | #[no_link()]
+   | ^^^^^^^^^^^^ help: must be of the form: `#[no_link]`
+
+error: malformed `macro_use` attribute input
+  --> $DIR/malformed-attrs.rs:207:1
+   |
+LL | #[macro_use = 1]
+   | ^^^^^^^^^^^^^^^^
+   |
+help: the following are the possible correct uses
+   |
+LL - #[macro_use = 1]
+LL + #[macro_use(name1, name2, ...)]
+   |
+LL - #[macro_use = 1]
+LL + #[macro_use]
+   |
+
+error: malformed `macro_export` attribute input
+  --> $DIR/malformed-attrs.rs:212:1
+   |
+LL | #[macro_export = 18]
+   | ^^^^^^^^^^^^^^^^^^^^
+   |
+help: the following are the possible correct uses
+   |
+LL - #[macro_export = 18]
+LL + #[macro_export(local_inner_macros)]
+   |
+LL - #[macro_export = 18]
+LL + #[macro_export]
+   |
+
+error: malformed `allow_internal_unsafe` attribute input
+  --> $DIR/malformed-attrs.rs:214:1
+   |
+LL | #[allow_internal_unsafe = 1]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[allow_internal_unsafe]`
+
+error: the `#[proc_macro]` attribute is only usable with crates of the `proc-macro` crate type
+  --> $DIR/malformed-attrs.rs:97:1
+   |
+LL | #[proc_macro = 18]
+   | ^^^^^^^^^^^^^^^^^^
+
+error: the `#[proc_macro_attribute]` attribute is only usable with crates of the `proc-macro` crate type
+  --> $DIR/malformed-attrs.rs:114:1
+   |
+LL | #[proc_macro_attribute = 19]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: the `#[proc_macro_derive]` attribute is only usable with crates of the `proc-macro` crate type
+  --> $DIR/malformed-attrs.rs:121:1
+   |
+LL | #[proc_macro_derive]
+   | ^^^^^^^^^^^^^^^^^^^^
+
+error[E0658]: allow_internal_unsafe side-steps the unsafe_code lint
+  --> $DIR/malformed-attrs.rs:214:1
+   |
+LL | #[allow_internal_unsafe = 1]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: add `#![feature(allow_internal_unsafe)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
+  --> $DIR/malformed-attrs.rs:42:1
+   |
+LL | #[doc]
+   | ^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
+   = note: `#[deny(ill_formed_attribute_input)]` on by default
+
+error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
+  --> $DIR/malformed-attrs.rs:74:1
+   |
+LL | #[doc]
+   | ^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
+
+error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]`
+  --> $DIR/malformed-attrs.rs:81:1
+   |
+LL | #[link]
+   | ^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
+
+error: valid forms for the attribute are `#[ignore]` and `#[ignore = "reason"]`
+  --> $DIR/malformed-attrs.rs:92:1
+   |
+LL | #[ignore()]
+   | ^^^^^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
+
+error: invalid argument
+  --> $DIR/malformed-attrs.rs:186:1
+   |
+LL | #[debugger_visualizer]
+   | ^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: expected: `natvis_file = "..."`
+   = note: OR
+   = note: expected: `gdb_script_file = "..."`
+
+error[E0539]: malformed `export_name` attribute input
+  --> $DIR/malformed-attrs.rs:32:1
+   |
+LL | #[unsafe(export_name)]
+   | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]`
+
+error: `rustc_allow_const_fn_unstable` expects a list of feature names
+  --> $DIR/malformed-attrs.rs:34:1
+   |
+LL | #[rustc_allow_const_fn_unstable]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: `allow_internal_unstable` expects a list of feature names
+  --> $DIR/malformed-attrs.rs:36:1
+   |
+LL | #[allow_internal_unstable]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0539]: malformed `rustc_confusables` attribute input
+  --> $DIR/malformed-attrs.rs:38:1
+   |
+LL | #[rustc_confusables]
+   | ^^^^^^^^^^^^^^^^^^^^
+   | |
+   | expected this to be a list
+   | help: must be of the form: `#[rustc_confusables("name1", "name2", ...)]`
+
+error[E0539]: malformed `deprecated` attribute input
+  --> $DIR/malformed-attrs.rs:40:1
+   |
+LL | #[deprecated = 5]
+   | ^^^^^^^^^^^^^^^-^
+   |                |
+   |                expected a string literal here
+   |
+help: try changing it to one of the following valid forms of the attribute
+   |
+LL - #[deprecated = 5]
+LL + #[deprecated = "reason"]
+   |
+LL - #[deprecated = 5]
+LL + #[deprecated(/*opt*/ since = "version", /*opt*/ note = "reason")]
+   |
+LL - #[deprecated = 5]
+LL + #[deprecated]
+   |
+
+error[E0539]: malformed `rustc_macro_transparency` attribute input
+  --> $DIR/malformed-attrs.rs:45:1
+   |
+LL | #[rustc_macro_transparency]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[rustc_macro_transparency = "transparent|semitransparent|opaque"]`
+
+error[E0539]: malformed `repr` attribute input
+  --> $DIR/malformed-attrs.rs:47:1
+   |
+LL | #[repr]
+   | ^^^^^^^
+   | |
+   | expected this to be a list
+   | help: must be of the form: `#[repr(C | Rust | align(...) | packed(...) | <integer type> | transparent)]`
+
+error[E0565]: malformed `rustc_as_ptr` attribute input
+  --> $DIR/malformed-attrs.rs:49:1
+   |
+LL | #[rustc_as_ptr = 5]
+   | ^^^^^^^^^^^^^^^---^
+   | |              |
+   | |              didn't expect any arguments here
+   | help: must be of the form: `#[rustc_as_ptr]`
+
+error[E0539]: malformed `align` attribute input
+  --> $DIR/malformed-attrs.rs:54:1
+   |
+LL | #[align]
+   | ^^^^^^^^
+   | |
+   | expected this to be a list
+   | help: must be of the form: `#[align(<alignment in bytes>)]`
+
+error[E0539]: malformed `optimize` attribute input
+  --> $DIR/malformed-attrs.rs:56:1
+   |
+LL | #[optimize]
+   | ^^^^^^^^^^^
+   | |
+   | expected this to be a list
+   | help: must be of the form: `#[optimize(size|speed|none)]`
+
+error[E0565]: malformed `cold` attribute input
+  --> $DIR/malformed-attrs.rs:58:1
+   |
+LL | #[cold = 1]
+   | ^^^^^^^---^
+   | |      |
+   | |      didn't expect any arguments here
+   | help: must be of the form: `#[cold]`
+
+error: valid forms for the attribute are `#[must_use = "reason"]` and `#[must_use]`
+  --> $DIR/malformed-attrs.rs:60:1
+   |
+LL | #[must_use()]
+   | ^^^^^^^^^^^^^
+
+error[E0565]: malformed `no_mangle` attribute input
+  --> $DIR/malformed-attrs.rs:62:1
+   |
+LL | #[no_mangle = 1]
+   | ^^^^^^^^^^^^---^
+   | |           |
+   | |           didn't expect any arguments here
+   | help: must be of the form: `#[no_mangle]`
+
+error[E0565]: malformed `naked` attribute input
+  --> $DIR/malformed-attrs.rs:64:1
+   |
+LL | #[unsafe(naked())]
+   | ^^^^^^^^^^^^^^--^^
+   | |             |
+   | |             didn't expect any arguments here
+   | help: must be of the form: `#[naked]`
+
+error[E0565]: malformed `track_caller` attribute input
+  --> $DIR/malformed-attrs.rs:66:1
+   |
+LL | #[track_caller()]
+   | ^^^^^^^^^^^^^^--^
+   | |             |
+   | |             didn't expect any arguments here
+   | help: must be of the form: `#[track_caller]`
+
+error[E0539]: malformed `export_name` attribute input
+  --> $DIR/malformed-attrs.rs:68:1
+   |
+LL | #[export_name()]
+   | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]`
+
+error[E0805]: malformed `used` attribute input
+  --> $DIR/malformed-attrs.rs:70:1
+   |
+LL | #[used()]
+   | ^^^^^^--^
+   |       |
+   |       expected a single argument here
+   |
+help: try changing it to one of the following valid forms of the attribute
+   |
+LL | #[used(compiler|linker)]
+   |        +++++++++++++++
+LL - #[used()]
+LL + #[used]
+   |
+
+error[E0539]: malformed `link_name` attribute input
+  --> $DIR/malformed-attrs.rs:84:1
+   |
+LL | #[link_name]
+   | ^^^^^^^^^^^^ help: must be of the form: `#[link_name = "name"]`
+
+error[E0539]: malformed `link_section` attribute input
+  --> $DIR/malformed-attrs.rs:86:1
+   |
+LL | #[link_section]
+   | ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_section = "name"]`
+
+error[E0539]: malformed `must_use` attribute input
+  --> $DIR/malformed-attrs.rs:117:1
+   |
+LL | #[must_use = 1]
+   | ^^^^^^^^^^^^^-^
+   |              |
+   |              expected a string literal here
+   |
+help: try changing it to one of the following valid forms of the attribute
+   |
+LL - #[must_use = 1]
+LL + #[must_use = "reason"]
+   |
+LL - #[must_use = 1]
+LL + #[must_use]
+   |
+
+error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input
+  --> $DIR/malformed-attrs.rs:126:1
+   |
+LL | #[rustc_layout_scalar_valid_range_start]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | |
+   | expected this to be a list
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]`
+
+error[E0539]: malformed `rustc_layout_scalar_valid_range_end` attribute input
+  --> $DIR/malformed-attrs.rs:128:1
+   |
+LL | #[rustc_layout_scalar_valid_range_end]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | |
+   | expected this to be a list
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_end(end)]`
+
+warning: `#[diagnostic::do_not_recommend]` does not expect any arguments
+  --> $DIR/malformed-attrs.rs:147:1
+   |
+LL | #[diagnostic::do_not_recommend()]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
+
+warning: missing options for `on_unimplemented` attribute
+  --> $DIR/malformed-attrs.rs:136:1
+   |
+LL | #[diagnostic::on_unimplemented]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: at least one of the `message`, `note` and `label` options are expected
+
+warning: malformed `on_unimplemented` attribute
+  --> $DIR/malformed-attrs.rs:138:1
+   |
+LL | #[diagnostic::on_unimplemented = 1]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
+   |
+   = help: only `message`, `note` and `label` are allowed as options
+
+error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]`
+  --> $DIR/malformed-attrs.rs:51:1
+   |
+LL | #[inline = 5]
+   | ^^^^^^^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
+
+error[E0308]: mismatched types
+  --> $DIR/malformed-attrs.rs:109:23
+   |
+LL | fn test() {
+   |          - help: a return type might be missing here: `-> _`
+LL |     #[coroutine = 63] || {}
+   |                       ^^^^^ expected `()`, found coroutine
+   |
+   = note: expected unit type `()`
+              found coroutine `{coroutine@$DIR/malformed-attrs.rs:109:23: 109:25}`
+
+error: aborting due to 72 previous errors; 3 warnings emitted
+
+Some errors have detailed explanations: E0308, E0463, E0539, E0565, E0658, E0805.
+For more information about an error, try `rustc --explain E0308`.
diff --git a/tests/ui/cast/non-primitive-cast-suggestion.fixed b/tests/ui/cast/non-primitive-cast-suggestion.fixed
new file mode 100644
index 00000000000..9a1a3c022c7
--- /dev/null
+++ b/tests/ui/cast/non-primitive-cast-suggestion.fixed
@@ -0,0 +1,23 @@
+//! Test that casting non-primitive types with `as` is rejected with a helpful suggestion.
+//!
+//! You can't use `as` to cast between non-primitive types, even if they have
+//! `From`/`Into` implementations. The compiler should suggest using `From::from()`
+//! or `.into()` instead, and rustfix should be able to apply the suggestion.
+
+//@ run-rustfix
+
+#[derive(Debug)]
+struct Foo {
+    x: isize,
+}
+
+impl From<Foo> for isize {
+    fn from(val: Foo) -> isize {
+        val.x
+    }
+}
+
+fn main() {
+    let _ = isize::from(Foo { x: 1 });
+    //~^ ERROR non-primitive cast: `Foo` as `isize` [E0605]
+}
diff --git a/tests/ui/cast/non-primitive-cast-suggestion.rs b/tests/ui/cast/non-primitive-cast-suggestion.rs
new file mode 100644
index 00000000000..79006f4ba26
--- /dev/null
+++ b/tests/ui/cast/non-primitive-cast-suggestion.rs
@@ -0,0 +1,23 @@
+//! Test that casting non-primitive types with `as` is rejected with a helpful suggestion.
+//!
+//! You can't use `as` to cast between non-primitive types, even if they have
+//! `From`/`Into` implementations. The compiler should suggest using `From::from()`
+//! or `.into()` instead, and rustfix should be able to apply the suggestion.
+
+//@ run-rustfix
+
+#[derive(Debug)]
+struct Foo {
+    x: isize,
+}
+
+impl From<Foo> for isize {
+    fn from(val: Foo) -> isize {
+        val.x
+    }
+}
+
+fn main() {
+    let _ = Foo { x: 1 } as isize;
+    //~^ ERROR non-primitive cast: `Foo` as `isize` [E0605]
+}
diff --git a/tests/ui/cast/non-primitive-cast-suggestion.stderr b/tests/ui/cast/non-primitive-cast-suggestion.stderr
new file mode 100644
index 00000000000..bd35ded15a4
--- /dev/null
+++ b/tests/ui/cast/non-primitive-cast-suggestion.stderr
@@ -0,0 +1,15 @@
+error[E0605]: non-primitive cast: `Foo` as `isize`
+  --> $DIR/non-primitive-cast-suggestion.rs:21:13
+   |
+LL |     let _ = Foo { x: 1 } as isize;
+   |             ^^^^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
+   |
+help: consider using the `From` trait instead
+   |
+LL -     let _ = Foo { x: 1 } as isize;
+LL +     let _ = isize::from(Foo { x: 1 });
+   |
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0605`.
diff --git a/tests/ui/closures/basic-closure-syntax.rs b/tests/ui/closures/basic-closure-syntax.rs
new file mode 100644
index 00000000000..1d968f8cf4a
--- /dev/null
+++ b/tests/ui/closures/basic-closure-syntax.rs
@@ -0,0 +1,35 @@
+//! Test basic closure syntax and usage with generic functions.
+//!
+//! This test checks that closure syntax works correctly for:
+//! - Closures with parameters and return values
+//! - Closures without parameters (both expression and block forms)
+//! - Integration with generic functions and FnOnce trait bounds
+
+//@ run-pass
+
+fn f<F>(i: isize, f: F) -> isize
+where
+    F: FnOnce(isize) -> isize,
+{
+    f(i)
+}
+
+fn g<G>(_g: G)
+where
+    G: FnOnce(),
+{
+}
+
+pub fn main() {
+    // Closure with parameter that returns the same value
+    assert_eq!(f(10, |a| a), 10);
+
+    // Closure without parameters - expression form
+    g(|| ());
+
+    // Test closure reuse in generic context
+    assert_eq!(f(10, |a| a), 10);
+
+    // Closure without parameters - block form
+    g(|| {});
+}
diff --git a/tests/ui/closures/closure-clone-requires-captured-clone.rs b/tests/ui/closures/closure-clone-requires-captured-clone.rs
new file mode 100644
index 00000000000..80938e50b67
--- /dev/null
+++ b/tests/ui/closures/closure-clone-requires-captured-clone.rs
@@ -0,0 +1,19 @@
+//! Test that closures only implement `Clone` if all captured values implement `Clone`.
+//!
+//! When a closure captures variables from its environment, it can only be cloned
+//! if all those captured variables are cloneable. This test makes sure the compiler
+//! properly rejects attempts to clone closures that capture non-Clone types.
+
+//@ compile-flags: --diagnostic-width=300
+
+struct NonClone(i32);
+
+fn main() {
+    let captured_value = NonClone(5);
+    let closure = move || {
+        let _ = captured_value.0;
+    };
+
+    closure.clone();
+    //~^ ERROR the trait bound `NonClone: Clone` is not satisfied
+}
diff --git a/tests/ui/closures/closure-clone-requires-captured-clone.stderr b/tests/ui/closures/closure-clone-requires-captured-clone.stderr
new file mode 100644
index 00000000000..785cc8a3032
--- /dev/null
+++ b/tests/ui/closures/closure-clone-requires-captured-clone.stderr
@@ -0,0 +1,23 @@
+error[E0277]: the trait bound `NonClone: Clone` is not satisfied in `{closure@$DIR/closure-clone-requires-captured-clone.rs:13:19: 13:26}`
+  --> $DIR/closure-clone-requires-captured-clone.rs:17:13
+   |
+LL |     let closure = move || {
+   |                   ------- within this `{closure@$DIR/closure-clone-requires-captured-clone.rs:13:19: 13:26}`
+...
+LL |     closure.clone();
+   |             ^^^^^ within `{closure@$DIR/closure-clone-requires-captured-clone.rs:13:19: 13:26}`, the trait `Clone` is not implemented for `NonClone`
+   |
+note: required because it's used within this closure
+  --> $DIR/closure-clone-requires-captured-clone.rs:13:19
+   |
+LL |     let closure = move || {
+   |                   ^^^^^^^
+help: consider annotating `NonClone` with `#[derive(Clone)]`
+   |
+LL + #[derive(Clone)]
+LL | struct NonClone(i32);
+   |
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/closures/missing-body.rs b/tests/ui/closures/missing-body.rs
new file mode 100644
index 00000000000..461c2be3ccd
--- /dev/null
+++ b/tests/ui/closures/missing-body.rs
@@ -0,0 +1,7 @@
+// Checks that the compiler complains about the missing closure body and does not
+// crash.
+// This is a regression test for <https://github.com/rust-lang/rust/issues/143128>.
+
+fn main() { |b: [str; _]| {}; }
+//~^ ERROR the placeholder `_` is not allowed within types on item signatures for closures
+//~| ERROR the size for values of type `str` cannot be known at compilation time
diff --git a/tests/ui/closures/missing-body.stderr b/tests/ui/closures/missing-body.stderr
new file mode 100644
index 00000000000..33580fc2fbd
--- /dev/null
+++ b/tests/ui/closures/missing-body.stderr
@@ -0,0 +1,19 @@
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for closures
+  --> $DIR/missing-body.rs:5:23
+   |
+LL | fn main() { |b: [str; _]| {}; }
+   |                       ^ not allowed in type signatures
+
+error[E0277]: the size for values of type `str` cannot be known at compilation time
+  --> $DIR/missing-body.rs:5:17
+   |
+LL | fn main() { |b: [str; _]| {}; }
+   |                 ^^^^^^^^ doesn't have a size known at compile-time
+   |
+   = help: the trait `Sized` is not implemented for `str`
+   = note: slice and array elements must have `Sized` type
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0121, E0277.
+For more information about an error, try `rustc --explain E0121`.
diff --git a/tests/ui/codegen/maximal-hir-to-mir-coverage-flag.rs b/tests/ui/codegen/maximal-hir-to-mir-coverage-flag.rs
new file mode 100644
index 00000000000..64c31beba28
--- /dev/null
+++ b/tests/ui/codegen/maximal-hir-to-mir-coverage-flag.rs
@@ -0,0 +1,12 @@
+//! Test that -Z maximal-hir-to-mir-coverage flag is accepted.
+//!
+//! Original PR: https://github.com/rust-lang/rust/pull/105286
+
+//@ compile-flags: -Zmaximal-hir-to-mir-coverage
+//@ run-pass
+
+fn main() {
+    let x = 1;
+    let y = x + 1;
+    println!("{y}");
+}
diff --git a/tests/ui/codegen/mono-respects-abi-alignment.rs b/tests/ui/codegen/mono-respects-abi-alignment.rs
new file mode 100644
index 00000000000..045d82b761f
--- /dev/null
+++ b/tests/ui/codegen/mono-respects-abi-alignment.rs
@@ -0,0 +1,37 @@
+//! Test that monomorphization correctly distinguishes types with different ABI alignment.
+//!
+//! On x86_64-linux-gnu and similar platforms, structs get 8-byte "preferred"
+//! alignment, but their "ABI" alignment (what actually matters for data layout)
+//! is the largest alignment of any field. If monomorphization incorrectly uses
+//! "preferred" alignment instead of "ABI" alignment, it might unify types `A`
+//! and `B` even though `S<A>` and `S<B>` have field `t` at different offsets,
+//! leading to incorrect method dispatch for `unwrap()`.
+
+//@ run-pass
+
+#[derive(Copy, Clone)]
+struct S<T> {
+    #[allow(dead_code)]
+    i: u8,
+    t: T,
+}
+
+impl<T> S<T> {
+    fn unwrap(self) -> T {
+        self.t
+    }
+}
+
+#[derive(Copy, Clone, PartialEq, Debug)]
+struct A((u32, u32)); // Different ABI alignment than B
+
+#[derive(Copy, Clone, PartialEq, Debug)]
+struct B(u64); // Different ABI alignment than A
+
+pub fn main() {
+    static CA: S<A> = S { i: 0, t: A((13, 104)) };
+    static CB: S<B> = S { i: 0, t: B(31337) };
+
+    assert_eq!(CA.unwrap(), A((13, 104)));
+    assert_eq!(CB.unwrap(), B(31337));
+}
diff --git a/tests/ui/codegen/msvc-opt-level-z-no-corruption.rs b/tests/ui/codegen/msvc-opt-level-z-no-corruption.rs
new file mode 100644
index 00000000000..ba97acec822
--- /dev/null
+++ b/tests/ui/codegen/msvc-opt-level-z-no-corruption.rs
@@ -0,0 +1,37 @@
+//! Test that opt-level=z produces correct code on Windows MSVC targets.
+//!
+//! A previously outdated version of LLVM caused compilation failures and
+//! generated invalid code on Windows specifically with optimization level `z`.
+//! The bug manifested as corrupted base pointers due to incorrect register
+//! usage in the generated assembly (e.g., `popl %esi` corrupting local variables).
+//! After updating to a more recent LLVM version, this test ensures that
+//! compilation and execution both succeed with opt-level=z.
+//!
+//! Regression test for <https://github.com/rust-lang/rust/issues/45034>.
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+//@ only-windows
+// Reason: the observed bug only occurred on Windows MSVC targets
+//@ run-pass
+//@ compile-flags: -C opt-level=z
+
+#![feature(test)]
+extern crate test;
+
+fn foo(x: i32, y: i32) -> i64 {
+    (x + y) as i64
+}
+
+#[inline(never)]
+fn bar() {
+    let _f = Box::new(0);
+    // This call used to trigger an LLVM bug in opt-level=z where the base
+    // pointer gets corrupted due to incorrect register allocation
+    let y: fn(i32, i32) -> i64 = test::black_box(foo);
+    test::black_box(y(1, 2));
+}
+
+fn main() {
+    bar();
+}
diff --git a/tests/ui/coherence/coherence-impl-trait-for-trait-dyn-compatible.stderr b/tests/ui/coherence/coherence-impl-trait-for-trait-dyn-compatible.stderr
index 033bfee226f..aafedc30b17 100644
--- a/tests/ui/coherence/coherence-impl-trait-for-trait-dyn-compatible.stderr
+++ b/tests/ui/coherence/coherence-impl-trait-for-trait-dyn-compatible.stderr
@@ -1,3 +1,11 @@
+error[E0046]: not all trait items implemented, missing: `eq`
+  --> $DIR/coherence-impl-trait-for-trait-dyn-compatible.rs:7:1
+   |
+LL | trait DynIncompatible { fn eq(&self, other: Self); }
+   |                         -------------------------- `eq` from trait
+LL | impl DynIncompatible for dyn DynIncompatible { }
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `eq` in implementation
+
 error[E0038]: the trait `DynIncompatible` is not dyn compatible
   --> $DIR/coherence-impl-trait-for-trait-dyn-compatible.rs:7:26
    |
@@ -14,14 +22,6 @@ LL | trait DynIncompatible { fn eq(&self, other: Self); }
    |       this trait is not dyn compatible...
    = help: consider moving `eq` to another trait
 
-error[E0046]: not all trait items implemented, missing: `eq`
-  --> $DIR/coherence-impl-trait-for-trait-dyn-compatible.rs:7:1
-   |
-LL | trait DynIncompatible { fn eq(&self, other: Self); }
-   |                         -------------------------- `eq` from trait
-LL | impl DynIncompatible for dyn DynIncompatible { }
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `eq` in implementation
-
 error: aborting due to 2 previous errors
 
 Some errors have detailed explanations: E0038, E0046.
diff --git a/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr b/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr
index 01b6eaf422e..fe28f4ff136 100644
--- a/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr
+++ b/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr
@@ -1,3 +1,12 @@
+error[E0046]: not all trait items implemented, missing: `Assoc`
+  --> $DIR/best-obligation-ICE.rs:10:1
+   |
+LL |     type Assoc;
+   |     ---------- `Assoc` from trait
+...
+LL | impl<T> Trait for W<W<W<T>>> {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Assoc` in implementation
+
 error[E0277]: the trait bound `W<W<T>>: Trait` is not satisfied
   --> $DIR/best-obligation-ICE.rs:10:19
    |
@@ -46,15 +55,6 @@ help: consider restricting type parameter `T` with trait `Trait`
 LL | impl<T: Trait> Trait for W<W<W<T>>> {}
    |       +++++++
 
-error[E0046]: not all trait items implemented, missing: `Assoc`
-  --> $DIR/best-obligation-ICE.rs:10:1
-   |
-LL |     type Assoc;
-   |     ---------- `Assoc` from trait
-...
-LL | impl<T> Trait for W<W<W<T>>> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Assoc` in implementation
-
 error[E0119]: conflicting implementations of trait `NoOverlap` for type `W<W<W<W<_>>>>`
   --> $DIR/best-obligation-ICE.rs:18:1
    |
diff --git a/tests/ui/compiletest-self-test/ui-test-missing-annotations-detection.rs b/tests/ui/compiletest-self-test/ui-test-missing-annotations-detection.rs
new file mode 100644
index 00000000000..3a110bdad35
--- /dev/null
+++ b/tests/ui/compiletest-self-test/ui-test-missing-annotations-detection.rs
@@ -0,0 +1,9 @@
+//! Regression test checks UI tests without error annotations are detected as failing.
+//!
+//! This tests that when we forget to use any `//~ ERROR` comments whatsoever,
+//! the test doesn't succeed
+//! Originally created in https://github.com/rust-lang/rust/pull/56244
+
+//@ should-fail
+
+fn main() {}
diff --git a/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.rs b/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.rs
index e5af632da75..478fa3706e8 100644
--- a/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.rs
+++ b/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.rs
@@ -5,6 +5,7 @@
 struct Foo;
 impl<'a, const NUM: usize> std::ops::Add<&'a Foo> for Foo
 //~^ ERROR the const parameter `NUM` is not constrained by the impl trait, self type, or predicates
+//~| ERROR missing: `Output`, `add`
 where
     [(); 1 + 0]: Sized,
 {
diff --git a/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.stderr b/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.stderr
index ade18eb88b9..29bbd23a469 100644
--- a/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.stderr
+++ b/tests/ui/const-generics/generic_const_exprs/post-analysis-user-facing-param-env.stderr
@@ -1,5 +1,5 @@
 error[E0407]: method `unimplemented` is not a member of trait `std::ops::Add`
-  --> $DIR/post-analysis-user-facing-param-env.rs:11:5
+  --> $DIR/post-analysis-user-facing-param-env.rs:12:5
    |
 LL | /     fn unimplemented(self, _: &Foo) -> Self::Output {
 LL | |
@@ -17,6 +17,19 @@ LL | #![feature(generic_const_exprs)]
    = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
+error[E0046]: not all trait items implemented, missing: `Output`, `add`
+  --> $DIR/post-analysis-user-facing-param-env.rs:6:1
+   |
+LL | / impl<'a, const NUM: usize> std::ops::Add<&'a Foo> for Foo
+LL | |
+LL | |
+LL | | where
+LL | |     [(); 1 + 0]: Sized,
+   | |_______________________^ missing `Output`, `add` in implementation
+   |
+   = help: implement the missing item: `type Output = /* Type */;`
+   = help: implement the missing item: `fn add(self, _: &'a Foo) -> <Self as Add<&'a Foo>>::Output { todo!() }`
+
 error[E0207]: the const parameter `NUM` is not constrained by the impl trait, self type, or predicates
   --> $DIR/post-analysis-user-facing-param-env.rs:6:10
    |
@@ -27,7 +40,7 @@ LL | impl<'a, const NUM: usize> std::ops::Add<&'a Foo> for Foo
    = note: proving the result of expressions other than the parameter are unique is not supported
 
 error[E0284]: type annotations needed
-  --> $DIR/post-analysis-user-facing-param-env.rs:11:40
+  --> $DIR/post-analysis-user-facing-param-env.rs:12:40
    |
 LL |     fn unimplemented(self, _: &Foo) -> Self::Output {
    |                                        ^^^^^^^^^^^^ cannot infer the value of const parameter `NUM`
@@ -40,7 +53,7 @@ LL | impl<'a, const NUM: usize> std::ops::Add<&'a Foo> for Foo
    |          |
    |          unsatisfied trait bound introduced here
 
-error: aborting due to 3 previous errors; 1 warning emitted
+error: aborting due to 4 previous errors; 1 warning emitted
 
-Some errors have detailed explanations: E0207, E0284, E0407.
-For more information about an error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0046, E0207, E0284, E0407.
+For more information about an error, try `rustc --explain E0046`.
diff --git a/tests/ui/const-generics/generic_const_exprs/type_mismatch.stderr b/tests/ui/const-generics/generic_const_exprs/type_mismatch.stderr
index 7cb67252da5..3b4b5798c80 100644
--- a/tests/ui/const-generics/generic_const_exprs/type_mismatch.stderr
+++ b/tests/ui/const-generics/generic_const_exprs/type_mismatch.stderr
@@ -1,11 +1,3 @@
-error: the constant `N` is not of type `usize`
-  --> $DIR/type_mismatch.rs:8:26
-   |
-LL | impl<const N: u64> Q for [u8; N] {}
-   |                          ^^^^^^^ expected `usize`, found `u64`
-   |
-   = note: the length of array `[u8; N]` must be type `usize`
-
 error[E0046]: not all trait items implemented, missing: `ASSOC`
   --> $DIR/type_mismatch.rs:8:1
    |
@@ -15,6 +7,14 @@ LL |     const ASSOC: usize;
 LL | impl<const N: u64> Q for [u8; N] {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `ASSOC` in implementation
 
+error: the constant `N` is not of type `usize`
+  --> $DIR/type_mismatch.rs:8:26
+   |
+LL | impl<const N: u64> Q for [u8; N] {}
+   |                          ^^^^^^^ expected `usize`, found `u64`
+   |
+   = note: the length of array `[u8; N]` must be type `usize`
+
 error: the constant `13` is not of type `u64`
   --> $DIR/type_mismatch.rs:12:26
    |
diff --git a/tests/ui/const-generics/ice-unexpected-inference-var-122549.rs b/tests/ui/const-generics/ice-unexpected-inference-var-122549.rs
index 126ea667290..34c7a252f11 100644
--- a/tests/ui/const-generics/ice-unexpected-inference-var-122549.rs
+++ b/tests/ui/const-generics/ice-unexpected-inference-var-122549.rs
@@ -15,6 +15,7 @@ struct ConstChunksExact<'rem, T: 'a, const N: usize> {}
 impl<'a, T, const N: usize> Iterator for ConstChunksExact<'a, T, {}> {
 //~^ ERROR the const parameter `N` is not constrained by the impl trait, self type, or predicates
 //~^^ ERROR mismatched types
+//~| ERROR missing: `next`
     type Item = &'a [T; N];
 }
 
diff --git a/tests/ui/const-generics/ice-unexpected-inference-var-122549.stderr b/tests/ui/const-generics/ice-unexpected-inference-var-122549.stderr
index 3b24808cd16..311caaede09 100644
--- a/tests/ui/const-generics/ice-unexpected-inference-var-122549.stderr
+++ b/tests/ui/const-generics/ice-unexpected-inference-var-122549.stderr
@@ -49,6 +49,20 @@ LL | struct ConstChunksExact<'rem, T: 'a, const N: usize> {}
    |
    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
 
+error[E0308]: mismatched types
+  --> $DIR/ice-unexpected-inference-var-122549.rs:15:66
+   |
+LL | impl<'a, T, const N: usize> Iterator for ConstChunksExact<'a, T, {}> {
+   |                                                                  ^^ expected `usize`, found `()`
+
+error[E0046]: not all trait items implemented, missing: `next`
+  --> $DIR/ice-unexpected-inference-var-122549.rs:15:1
+   |
+LL | impl<'a, T, const N: usize> Iterator for ConstChunksExact<'a, T, {}> {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `next` in implementation
+   |
+   = help: implement the missing item: `fn next(&mut self) -> Option<<Self as Iterator>::Item> { todo!() }`
+
 error[E0207]: the const parameter `N` is not constrained by the impl trait, self type, or predicates
   --> $DIR/ice-unexpected-inference-var-122549.rs:15:13
    |
@@ -58,13 +72,7 @@ LL | impl<'a, T, const N: usize> Iterator for ConstChunksExact<'a, T, {}> {
    = note: expressions using a const parameter must map each value to a distinct output value
    = note: proving the result of expressions other than the parameter are unique is not supported
 
-error[E0308]: mismatched types
-  --> $DIR/ice-unexpected-inference-var-122549.rs:15:66
-   |
-LL | impl<'a, T, const N: usize> Iterator for ConstChunksExact<'a, T, {}> {
-   |                                                                  ^^ expected `usize`, found `()`
-
-error: aborting due to 7 previous errors
+error: aborting due to 8 previous errors
 
 Some errors have detailed explanations: E0046, E0207, E0261, E0308, E0392.
 For more information about an error, try `rustc --explain E0046`.
diff --git a/tests/ui/const-generics/issues/issue-71202.stderr b/tests/ui/const-generics/issues/issue-71202.stderr
index b7c3db494a5..dd0611a7223 100644
--- a/tests/ui/const-generics/issues/issue-71202.stderr
+++ b/tests/ui/const-generics/issues/issue-71202.stderr
@@ -7,7 +7,7 @@ LL | |             const VALUE: bool = false;
 ...  |
 LL | |         <IsCopy<T>>::VALUE
 LL | |     } as usize] = [];
-   | |_____________________^
+   | |_______________^
    |
 help: try adding a `where` bound
    |
diff --git a/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.rs b/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.rs
index ba37087135f..9a39ab1ba02 100644
--- a/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.rs
+++ b/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.rs
@@ -14,5 +14,6 @@ impl<'a, T: std::fmt::Debug, const N: usize> Iterator for ConstChunksExact<'a, T
     //~^ ERROR mismatched types [E0308]
     //~| ERROR the const parameter `N` is not constrained by the impl trait, self type, or predicates [E0207]
     type Item = &'a [T; N]; }
+    //~^ ERROR: `Item` specializes an item from a parent `impl`, but that item is not marked `default`
 
 fn main() {}
diff --git a/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.stderr b/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.stderr
index 1ee68647594..ad89705e1dc 100644
--- a/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.stderr
+++ b/tests/ui/const-generics/normalizing_with_unconstrained_impl_params.stderr
@@ -34,6 +34,17 @@ LL | struct ConstChunksExact<'a, T: '_, const assert: usize> {}
    |
    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
 
+error[E0520]: `Item` specializes an item from a parent `impl`, but that item is not marked `default`
+  --> $DIR/normalizing_with_unconstrained_impl_params.rs:16:5
+   |
+LL | impl<'a, T: std::fmt::Debug, const N: usize> Iterator for ConstChunksExact<'a, T, { N }> {
+   | ---------------------------------------------------------------------------------------- parent `impl` is here
+...
+LL |     type Item = &'a [T; N]; }
+   |     ^^^^^^^^^ cannot specialize default item `Item`
+   |
+   = note: to specialize, `Item` in the parent `impl` must be marked `default`
+
 error[E0207]: the const parameter `N` is not constrained by the impl trait, self type, or predicates
   --> $DIR/normalizing_with_unconstrained_impl_params.rs:13:30
    |
@@ -54,7 +65,7 @@ LL |     fn next(&mut self) -> Option<Self::Item> {}
    = note:   expected enum `Option<_>`
            found unit type `()`
 
-error: aborting due to 7 previous errors
+error: aborting due to 8 previous errors
 
-Some errors have detailed explanations: E0046, E0207, E0308, E0392, E0637.
+Some errors have detailed explanations: E0046, E0207, E0308, E0392, E0520, E0637.
 For more information about an error, try `rustc --explain E0046`.
diff --git a/tests/ui/const-generics/not_wf_param_in_rpitit.stderr b/tests/ui/const-generics/not_wf_param_in_rpitit.stderr
index 42ae012fa55..3612cfad0d4 100644
--- a/tests/ui/const-generics/not_wf_param_in_rpitit.stderr
+++ b/tests/ui/const-generics/not_wf_param_in_rpitit.stderr
@@ -11,7 +11,7 @@ LL | trait Trait<const N: dyn Trait = bar> {
    |                          ^^^^^
    |
    = note: ...which immediately requires computing type of `Trait::N` again
-note: cycle used when computing explicit predicates of trait `Trait`
+note: cycle used when checking that `Trait` is well-formed
   --> $DIR/not_wf_param_in_rpitit.rs:3:1
    |
 LL | trait Trait<const N: dyn Trait = bar> {
diff --git a/tests/ui/consts/array-repeat-expr-not-const.rs b/tests/ui/consts/array-repeat-expr-not-const.rs
new file mode 100644
index 00000000000..55aee7336da
--- /dev/null
+++ b/tests/ui/consts/array-repeat-expr-not-const.rs
@@ -0,0 +1,10 @@
+//! Arrays created with `[value; length]` syntax need the length to be known at
+//! compile time. This test makes sure the compiler rejects runtime values like
+//! function parameters in the length position.
+
+fn main() {
+    fn create_array(n: usize) {
+        let _x = [0; n];
+        //~^ ERROR attempt to use a non-constant value in a constant [E0435]
+    }
+}
diff --git a/tests/ui/non-constant-expr-for-arr-len.stderr b/tests/ui/consts/array-repeat-expr-not-const.stderr
index c9f977fbaa4..f5761545259 100644
--- a/tests/ui/non-constant-expr-for-arr-len.stderr
+++ b/tests/ui/consts/array-repeat-expr-not-const.stderr
@@ -1,8 +1,8 @@
 error[E0435]: attempt to use a non-constant value in a constant
-  --> $DIR/non-constant-expr-for-arr-len.rs:5:22
+  --> $DIR/array-repeat-expr-not-const.rs:7:22
    |
-LL |     fn bar(n: usize) {
-   |            - this would need to be a `const`
+LL |     fn create_array(n: usize) {
+   |                     - this would need to be a `const`
 LL |         let _x = [0; n];
    |                      ^
 
diff --git a/tests/ui/consts/const-fn-type-name.rs b/tests/ui/consts/const-fn-type-name.rs
index 5403c26b979..733ab79b7cd 100644
--- a/tests/ui/consts/const-fn-type-name.rs
+++ b/tests/ui/consts/const-fn-type-name.rs
@@ -5,7 +5,7 @@
 #![allow(dead_code)]
 
 const fn type_name_wrapper<T>(_: &T) -> &'static str {
-    core::intrinsics::type_name::<T>()
+    const { core::intrinsics::type_name::<T>() }
 }
 
 struct Struct<TA, TB, TC> {
diff --git a/tests/ui/consts/const-unsized.stderr b/tests/ui/consts/const-unsized.stderr
index cee364b33f7..c92fbc17f9c 100644
--- a/tests/ui/consts/const-unsized.stderr
+++ b/tests/ui/consts/const-unsized.stderr
@@ -17,19 +17,19 @@ LL | const CONST_FOO: str = *"foo";
    = note: statics and constants must have a statically known size
 
 error[E0277]: the size for values of type `(dyn Debug + Sync + 'static)` cannot be known at compilation time
-  --> $DIR/const-unsized.rs:11:18
+  --> $DIR/const-unsized.rs:11:1
    |
 LL | static STATIC_1: dyn Debug + Sync = *(&1 as &(dyn Debug + Sync));
-   |                  ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `(dyn Debug + Sync + 'static)`
    = note: statics and constants must have a statically known size
 
 error[E0277]: the size for values of type `str` cannot be known at compilation time
-  --> $DIR/const-unsized.rs:15:20
+  --> $DIR/const-unsized.rs:15:1
    |
 LL | static STATIC_BAR: str = *"bar";
-   |                    ^^^ doesn't have a size known at compile-time
+   | ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `str`
    = note: statics and constants must have a statically known size
diff --git a/tests/ui/consts/const_refs_to_static-ice-121413.stderr b/tests/ui/consts/const_refs_to_static-ice-121413.stderr
index 3980a7e9b93..1263deebf76 100644
--- a/tests/ui/consts/const_refs_to_static-ice-121413.stderr
+++ b/tests/ui/consts/const_refs_to_static-ice-121413.stderr
@@ -24,10 +24,10 @@ LL |     static FOO: dyn Sync = AtomicUsize::new(0);
    |                 +++
 
 error[E0277]: the size for values of type `(dyn Sync + 'static)` cannot be known at compilation time
-  --> $DIR/const_refs_to_static-ice-121413.rs:8:17
+  --> $DIR/const_refs_to_static-ice-121413.rs:8:5
    |
 LL |     static FOO: Sync = AtomicUsize::new(0);
-   |                 ^^^^ doesn't have a size known at compile-time
+   |     ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `(dyn Sync + 'static)`
    = note: statics and constants must have a statically known size
diff --git a/tests/ui/consts/dont-ctfe-unsized-initializer.stderr b/tests/ui/consts/dont-ctfe-unsized-initializer.stderr
index e69790fc182..5b0a0166f31 100644
--- a/tests/ui/consts/dont-ctfe-unsized-initializer.stderr
+++ b/tests/ui/consts/dont-ctfe-unsized-initializer.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the size for values of type `str` cannot be known at compilation time
-  --> $DIR/dont-ctfe-unsized-initializer.rs:1:11
+  --> $DIR/dont-ctfe-unsized-initializer.rs:1:1
    |
 LL | static S: str = todo!();
-   |           ^^^ doesn't have a size known at compile-time
+   | ^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `str`
    = note: statics and constants must have a statically known size
diff --git a/tests/ui/consts/issue-103790.stderr b/tests/ui/consts/issue-103790.stderr
index 1515fa60a5c..adfac02bd0c 100644
--- a/tests/ui/consts/issue-103790.stderr
+++ b/tests/ui/consts/issue-103790.stderr
@@ -29,7 +29,7 @@ LL | struct S<const S: (), const S: S = { S }>;
    |                                ^
    |
    = note: ...which immediately requires computing type of `S::S` again
-note: cycle used when computing explicit predicates of `S`
+note: cycle used when checking that `S` is well-formed
   --> $DIR/issue-103790.rs:4:1
    |
 LL | struct S<const S: (), const S: S = { S }>;
diff --git a/tests/ui/auxiliary/noexporttypelib.rs b/tests/ui/cross-crate/auxiliary/unexported-type-error-message.rs
index 67889cc5f65..67889cc5f65 100644
--- a/tests/ui/auxiliary/noexporttypelib.rs
+++ b/tests/ui/cross-crate/auxiliary/unexported-type-error-message.rs
diff --git a/tests/ui/noexporttypeexe.rs b/tests/ui/cross-crate/unexported-type-error-message.rs
index 35257b20ccd..5998f0dc6e2 100644
--- a/tests/ui/noexporttypeexe.rs
+++ b/tests/ui/cross-crate/unexported-type-error-message.rs
@@ -1,13 +1,13 @@
-//@ aux-build:noexporttypelib.rs
+//@ aux-build:unexported-type-error-message.rs
 
-extern crate noexporttypelib;
+extern crate unexported_type_error_message;
 
 fn main() {
     // Here, the type returned by foo() is not exported.
     // This used to cause internal errors when serializing
     // because the def_id associated with the type was
     // not convertible to a path.
-  let x: isize = noexporttypelib::foo();
+    let x: isize = unexported_type_error_message::foo();
     //~^ ERROR mismatched types
     //~| NOTE expected type `isize`
     //~| NOTE found enum `Option<isize>`
diff --git a/tests/ui/cross-crate/unexported-type-error-message.stderr b/tests/ui/cross-crate/unexported-type-error-message.stderr
new file mode 100644
index 00000000000..b468d9839e1
--- /dev/null
+++ b/tests/ui/cross-crate/unexported-type-error-message.stderr
@@ -0,0 +1,18 @@
+error[E0308]: mismatched types
+  --> $DIR/unexported-type-error-message.rs:10:20
+   |
+LL |     let x: isize = unexported_type_error_message::foo();
+   |            -----   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `isize`, found `Option<isize>`
+   |            |
+   |            expected due to this
+   |
+   = note: expected type `isize`
+              found enum `Option<isize>`
+help: consider using `Option::expect` to unwrap the `Option<isize>` value, panicking if the value is an `Option::None`
+   |
+LL |     let x: isize = unexported_type_error_message::foo().expect("REASON");
+   |                                                        +++++++++++++++++
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/cycle-trait/cycle-trait-supertrait-direct.stderr b/tests/ui/cycle-trait/cycle-trait-supertrait-direct.stderr
index 2e11a59c3a4..3e5579d2e4a 100644
--- a/tests/ui/cycle-trait/cycle-trait-supertrait-direct.stderr
+++ b/tests/ui/cycle-trait/cycle-trait-supertrait-direct.stderr
@@ -8,10 +8,8 @@ LL | trait Chromosome: Chromosome {
 note: cycle used when checking that `Chromosome` is well-formed
   --> $DIR/cycle-trait-supertrait-direct.rs:3:1
    |
-LL | / trait Chromosome: Chromosome {
-LL | |
-LL | | }
-   | |_^
+LL | trait Chromosome: Chromosome {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error: aborting due to 1 previous error
diff --git a/tests/ui/cycle-trait/issue-12511.stderr b/tests/ui/cycle-trait/issue-12511.stderr
index 0246bf21983..45fc86a7413 100644
--- a/tests/ui/cycle-trait/issue-12511.stderr
+++ b/tests/ui/cycle-trait/issue-12511.stderr
@@ -13,10 +13,8 @@ LL | trait T2 : T1 {
 note: cycle used when checking that `T1` is well-formed
   --> $DIR/issue-12511.rs:1:1
    |
-LL | / trait T1 : T2 {
-LL | |
-LL | | }
-   | |_^
+LL | trait T1 : T2 {
+   | ^^^^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error: aborting due to 1 previous error
diff --git a/tests/ui/delegation/unsupported.stderr b/tests/ui/delegation/unsupported.stderr
index 53d05c3db8c..f69be60133e 100644
--- a/tests/ui/delegation/unsupported.stderr
+++ b/tests/ui/delegation/unsupported.stderr
@@ -10,11 +10,11 @@ note: ...which requires comparing an impl and trait method signature, inferring
 LL |         reuse to_reuse::opaque_ret;
    |                         ^^^^^^^^^^
    = note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:21:5: 21:24>::opaque_ret::{anon_assoc#0}`, completing the cycle
-note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:21:5: 21:24>` is well-formed
-  --> $DIR/unsupported.rs:21:5
+note: cycle used when checking assoc item `opaque::<impl at $DIR/unsupported.rs:21:5: 21:24>::opaque_ret` is compatible with trait definition
+  --> $DIR/unsupported.rs:22:25
    |
-LL |     impl ToReuse for u8 {
-   |     ^^^^^^^^^^^^^^^^^^^
+LL |         reuse to_reuse::opaque_ret;
+   |                         ^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>::opaque_ret::{anon_assoc#0}`
@@ -29,11 +29,11 @@ note: ...which requires comparing an impl and trait method signature, inferring
 LL |         reuse ToReuse::opaque_ret;
    |                        ^^^^^^^^^^
    = note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>::opaque_ret::{anon_assoc#0}`, completing the cycle
-note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>` is well-formed
-  --> $DIR/unsupported.rs:24:5
+note: cycle used when checking assoc item `opaque::<impl at $DIR/unsupported.rs:24:5: 24:25>::opaque_ret` is compatible with trait definition
+  --> $DIR/unsupported.rs:25:24
    |
-LL |     impl ToReuse for u16 {
-   |     ^^^^^^^^^^^^^^^^^^^^
+LL |         reuse ToReuse::opaque_ret;
+   |                        ^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error: recursive delegation is not supported yet
diff --git a/tests/ui/derives/derive-Debug-enum-variants.rs b/tests/ui/derives/derive-Debug-enum-variants.rs
new file mode 100644
index 00000000000..26f527f7664
--- /dev/null
+++ b/tests/ui/derives/derive-Debug-enum-variants.rs
@@ -0,0 +1,30 @@
+//! Test that `#[derive(Debug)]` for enums correctly formats variant names.
+
+//@ run-pass
+
+#[derive(Debug)]
+enum Foo {
+    A(usize),
+    C,
+}
+
+#[derive(Debug)]
+enum Bar {
+    D,
+}
+
+pub fn main() {
+    // Test variant with data
+    let foo_a = Foo::A(22);
+    assert_eq!("A(22)".to_string(), format!("{:?}", foo_a));
+
+    if let Foo::A(value) = foo_a {
+        println!("Value: {}", value); // This needs to remove #[allow(dead_code)]
+    }
+
+    // Test unit variant
+    assert_eq!("C".to_string(), format!("{:?}", Foo::C));
+
+    // Test unit variant from different enum
+    assert_eq!("D".to_string(), format!("{:?}", Bar::D));
+}
diff --git a/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr b/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr
index fe1ce5ad18b..ed6e5c3e0c0 100644
--- a/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr
+++ b/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr
@@ -302,7 +302,7 @@ error[E0121]: the placeholder `_` is not allowed within types on item signatures
 LL | trait P<F> where F: Fn() -> _ {
    |                             ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/bad-assoc-ty.rs:88:38
    |
 LL |     fn foo<F>(_: F) where F: Fn() -> _ {}
diff --git a/tests/ui/did_you_mean/bad-assoc-ty.edition2021.stderr b/tests/ui/did_you_mean/bad-assoc-ty.edition2021.stderr
index 2cf7a150aa2..2ee8ab2760a 100644
--- a/tests/ui/did_you_mean/bad-assoc-ty.edition2021.stderr
+++ b/tests/ui/did_you_mean/bad-assoc-ty.edition2021.stderr
@@ -284,7 +284,7 @@ error[E0121]: the placeholder `_` is not allowed within types on item signatures
 LL | trait P<F> where F: Fn() -> _ {
    |                             ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/bad-assoc-ty.rs:88:38
    |
 LL |     fn foo<F>(_: F) where F: Fn() -> _ {}
diff --git a/tests/ui/did_you_mean/bad-assoc-ty.rs b/tests/ui/did_you_mean/bad-assoc-ty.rs
index 9abda4fd962..39f0a84855a 100644
--- a/tests/ui/did_you_mean/bad-assoc-ty.rs
+++ b/tests/ui/did_you_mean/bad-assoc-ty.rs
@@ -86,7 +86,7 @@ trait P<F> where F: Fn() -> _ {
 
 trait Q {
     fn foo<F>(_: F) where F: Fn() -> _ {}
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
 }
 
 fn main() {}
diff --git a/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.fixed b/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.fixed
index db18cf2ad96..0096d3eaea4 100644
--- a/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.fixed
+++ b/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.fixed
@@ -7,7 +7,7 @@ trait Foo<T>: Sized {
 
 impl Foo<usize> for () {
     fn bar(i: i32, t: usize, s: &()) -> (usize, i32) {
-        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
         //~| ERROR type annotations needed
         (1, 2)
     }
diff --git a/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.rs b/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.rs
index 1217a96112d..9ebc565b8fd 100644
--- a/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.rs
+++ b/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.rs
@@ -7,7 +7,7 @@ trait Foo<T>: Sized {
 
 impl Foo<usize> for () {
     fn bar(i: _, t: _, s: _) -> _ {
-        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
         //~| ERROR type annotations needed
         (1, 2)
     }
diff --git a/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.stderr b/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.stderr
index 6c24a5899ea..3c11ad0cf29 100644
--- a/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.stderr
+++ b/tests/ui/did_you_mean/replace-impl-infer-ty-from-trait.stderr
@@ -1,4 +1,4 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/replace-impl-infer-ty-from-trait.rs:9:15
    |
 LL |     fn bar(i: _, t: _, s: _) -> _ {
diff --git a/tests/ui/drop/field-replace-in-struct-with-drop.rs b/tests/ui/drop/field-replace-in-struct-with-drop.rs
new file mode 100644
index 00000000000..8c65a4b3ad1
--- /dev/null
+++ b/tests/ui/drop/field-replace-in-struct-with-drop.rs
@@ -0,0 +1,40 @@
+//! Circa 2016-06-05, `fn inline` below issued an
+//! erroneous warning from the elaborate_drops pass about moving out of
+//! a field in `Foo`, which has a destructor (and thus cannot have
+//! content moved out of it). The reason that the warning is erroneous
+//! in this case is that we are doing a *replace*, not a move, of the
+//! content in question, and it is okay to replace fields within `Foo`.
+//!
+//! Another more subtle problem was that the elaborate_drops was
+//! creating a separate drop flag for that internally replaced content,
+//! even though the compiler should enforce an invariant that any drop
+//! flag for such subcontent of `Foo` will always have the same value
+//! as the drop flag for `Foo` itself.
+//!
+//! Regression test for <https://github.com/rust-lang/rust/issues/34101>.
+
+//@ check-pass
+
+struct Foo(String);
+
+impl Drop for Foo {
+    fn drop(&mut self) {}
+}
+
+fn test_inline_replacement() {
+    // dummy variable so `f` gets assigned `var1` in MIR for both functions
+    let _s = ();
+    let mut f = Foo(String::from("foo"));
+    f.0 = String::from("bar"); // This should not warn
+}
+
+fn test_outline_replacement() {
+    let _s = String::from("foo");
+    let mut f = Foo(_s);
+    f.0 = String::from("bar"); // This should not warn either
+}
+
+fn main() {
+    test_inline_replacement();
+    test_outline_replacement();
+}
diff --git a/tests/ui/dropck/explicit-drop-bounds.bad1.stderr b/tests/ui/dropck/explicit-drop-bounds.bad1.stderr
index 28d7546d0c9..d898f2f9761 100644
--- a/tests/ui/dropck/explicit-drop-bounds.bad1.stderr
+++ b/tests/ui/dropck/explicit-drop-bounds.bad1.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the trait bound `T: Copy` is not satisfied
-  --> $DIR/explicit-drop-bounds.rs:27:18
+  --> $DIR/explicit-drop-bounds.rs:32:5
    |
-LL | impl<T> Drop for DropMe<T>
-   |                  ^^^^^^^^^ the trait `Copy` is not implemented for `T`
+LL |     fn drop(&mut self) {}
+   |     ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
    |
 note: required by a bound in `DropMe`
   --> $DIR/explicit-drop-bounds.rs:7:18
@@ -15,10 +15,10 @@ LL |     [T; 1]: Copy, T: std::marker::Copy // But `[T; 1]: Copy` does not imply
    |                   ++++++++++++++++++++
 
 error[E0277]: the trait bound `T: Copy` is not satisfied
-  --> $DIR/explicit-drop-bounds.rs:32:5
+  --> $DIR/explicit-drop-bounds.rs:27:18
    |
-LL |     fn drop(&mut self) {}
-   |     ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
+LL | impl<T> Drop for DropMe<T>
+   |                  ^^^^^^^^^ the trait `Copy` is not implemented for `T`
    |
 note: required by a bound in `DropMe`
   --> $DIR/explicit-drop-bounds.rs:7:18
diff --git a/tests/ui/dropck/explicit-drop-bounds.bad2.stderr b/tests/ui/dropck/explicit-drop-bounds.bad2.stderr
index c363676edea..8155bd4134d 100644
--- a/tests/ui/dropck/explicit-drop-bounds.bad2.stderr
+++ b/tests/ui/dropck/explicit-drop-bounds.bad2.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the trait bound `T: Copy` is not satisfied
-  --> $DIR/explicit-drop-bounds.rs:38:18
+  --> $DIR/explicit-drop-bounds.rs:41:5
    |
-LL | impl<T> Drop for DropMe<T>
-   |                  ^^^^^^^^^ the trait `Copy` is not implemented for `T`
+LL |     fn drop(&mut self) {}
+   |     ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
    |
 note: required by a bound in `DropMe`
   --> $DIR/explicit-drop-bounds.rs:7:18
@@ -15,10 +15,10 @@ LL | impl<T: std::marker::Copy> Drop for DropMe<T>
    |       +++++++++++++++++++
 
 error[E0277]: the trait bound `T: Copy` is not satisfied
-  --> $DIR/explicit-drop-bounds.rs:41:5
+  --> $DIR/explicit-drop-bounds.rs:38:18
    |
-LL |     fn drop(&mut self) {}
-   |     ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
+LL | impl<T> Drop for DropMe<T>
+   |                  ^^^^^^^^^ the trait `Copy` is not implemented for `T`
    |
 note: required by a bound in `DropMe`
   --> $DIR/explicit-drop-bounds.rs:7:18
diff --git a/tests/ui/dropck/unconstrained_const_param_on_drop.rs b/tests/ui/dropck/unconstrained_const_param_on_drop.rs
index de77fa55fb2..839aca07a6a 100644
--- a/tests/ui/dropck/unconstrained_const_param_on_drop.rs
+++ b/tests/ui/dropck/unconstrained_const_param_on_drop.rs
@@ -3,5 +3,6 @@ struct Foo {}
 impl<const UNUSED: usize> Drop for Foo {}
 //~^ ERROR: `Drop` impl requires `the constant `_` has type `usize``
 //~| ERROR: the const parameter `UNUSED` is not constrained by the impl trait, self type, or predicates
+//~| ERROR: missing: `drop`
 
 fn main() {}
diff --git a/tests/ui/dropck/unconstrained_const_param_on_drop.stderr b/tests/ui/dropck/unconstrained_const_param_on_drop.stderr
index 851888534ee..515637dd47f 100644
--- a/tests/ui/dropck/unconstrained_const_param_on_drop.stderr
+++ b/tests/ui/dropck/unconstrained_const_param_on_drop.stderr
@@ -10,6 +10,14 @@ note: the implementor must specify the same requirement
 LL | struct Foo {}
    | ^^^^^^^^^^
 
+error[E0046]: not all trait items implemented, missing: `drop`
+  --> $DIR/unconstrained_const_param_on_drop.rs:3:1
+   |
+LL | impl<const UNUSED: usize> Drop for Foo {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `drop` in implementation
+   |
+   = help: implement the missing item: `fn drop(&mut self) { todo!() }`
+
 error[E0207]: the const parameter `UNUSED` is not constrained by the impl trait, self type, or predicates
   --> $DIR/unconstrained_const_param_on_drop.rs:3:6
    |
@@ -19,7 +27,7 @@ LL | impl<const UNUSED: usize> Drop for Foo {}
    = note: expressions using a const parameter must map each value to a distinct output value
    = note: proving the result of expressions other than the parameter are unique is not supported
 
-error: aborting due to 2 previous errors
+error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0207, E0367.
-For more information about an error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0046, E0207, E0367.
+For more information about an error, try `rustc --explain E0046`.
diff --git a/tests/ui/dyn-star/align.normal.stderr b/tests/ui/dyn-star/align.normal.stderr
deleted file mode 100644
index d3ee0d3e550..00000000000
--- a/tests/ui/dyn-star/align.normal.stderr
+++ /dev/null
@@ -1,20 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/align.rs:3:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0277]: `AlignedUsize` needs to have the same ABI as a pointer
-  --> $DIR/align.rs:14:13
-   |
-LL |     let x = AlignedUsize(12) as dyn* Debug;
-   |             ^^^^^^^^^^^^^^^^ `AlignedUsize` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `AlignedUsize`
-
-error: aborting due to 1 previous error; 1 warning emitted
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/align.over_aligned.stderr b/tests/ui/dyn-star/align.over_aligned.stderr
deleted file mode 100644
index d3ee0d3e550..00000000000
--- a/tests/ui/dyn-star/align.over_aligned.stderr
+++ /dev/null
@@ -1,20 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/align.rs:3:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0277]: `AlignedUsize` needs to have the same ABI as a pointer
-  --> $DIR/align.rs:14:13
-   |
-LL |     let x = AlignedUsize(12) as dyn* Debug;
-   |             ^^^^^^^^^^^^^^^^ `AlignedUsize` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `AlignedUsize`
-
-error: aborting due to 1 previous error; 1 warning emitted
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/align.rs b/tests/ui/dyn-star/align.rs
deleted file mode 100644
index f9ef7063231..00000000000
--- a/tests/ui/dyn-star/align.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-//@ revisions: normal over_aligned
-
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-use std::fmt::Debug;
-
-#[cfg_attr(over_aligned,      repr(C, align(1024)))]
-#[cfg_attr(not(over_aligned), repr(C))]
-#[derive(Debug)]
-struct AlignedUsize(usize);
-
-fn main() {
-    let x = AlignedUsize(12) as dyn* Debug;
-    //~^ ERROR `AlignedUsize` needs to have the same ABI as a pointer
-}
diff --git a/tests/ui/dyn-star/async-block-dyn-star.rs b/tests/ui/dyn-star/async-block-dyn-star.rs
deleted file mode 100644
index db133d94c91..00000000000
--- a/tests/ui/dyn-star/async-block-dyn-star.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-//@ edition:2018
-
-#![feature(dyn_star, const_async_blocks)]
-//~^ WARN the feature `dyn_star` is incomplete
-
-static S: dyn* Send + Sync = async { 42 };
-//~^ ERROR needs to have the same ABI as a pointer
-
-pub fn main() {}
diff --git a/tests/ui/dyn-star/async-block-dyn-star.stderr b/tests/ui/dyn-star/async-block-dyn-star.stderr
deleted file mode 100644
index f62c85c0ad2..00000000000
--- a/tests/ui/dyn-star/async-block-dyn-star.stderr
+++ /dev/null
@@ -1,20 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/async-block-dyn-star.rs:3:12
-   |
-LL | #![feature(dyn_star, const_async_blocks)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0277]: `{async block@$DIR/async-block-dyn-star.rs:6:30: 6:35}` needs to have the same ABI as a pointer
-  --> $DIR/async-block-dyn-star.rs:6:30
-   |
-LL | static S: dyn* Send + Sync = async { 42 };
-   |                              ^^^^^^^^^^^^ `{async block@$DIR/async-block-dyn-star.rs:6:30: 6:35}` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `{async block@$DIR/async-block-dyn-star.rs:6:30: 6:35}`
-
-error: aborting due to 1 previous error; 1 warning emitted
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/auxiliary/dyn-star-foreign.rs b/tests/ui/dyn-star/auxiliary/dyn-star-foreign.rs
deleted file mode 100644
index ce892088f50..00000000000
--- a/tests/ui/dyn-star/auxiliary/dyn-star-foreign.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-#![feature(dyn_star)]
-
-use std::fmt::Display;
-
-pub fn require_dyn_star_display(_: dyn* Display) {}
-
-fn works_locally() {
-    require_dyn_star_display(1usize);
-}
diff --git a/tests/ui/dyn-star/box.rs b/tests/ui/dyn-star/box.rs
deleted file mode 100644
index f1c9fd1a01e..00000000000
--- a/tests/ui/dyn-star/box.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-//@ run-pass
-//@ revisions: current next
-//@ ignore-compare-mode-next-solver (explicit revisions)
-//@[current] compile-flags: -C opt-level=0
-//@[next] compile-flags: -Znext-solver -C opt-level=0
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Display;
-
-fn make_dyn_star() -> dyn* Display {
-    Box::new(42) as dyn* Display
-}
-
-fn main() {
-    let x = make_dyn_star();
-
-    println!("{x}");
-}
diff --git a/tests/ui/dyn-star/cell.rs b/tests/ui/dyn-star/cell.rs
deleted file mode 100644
index f4c7927a39d..00000000000
--- a/tests/ui/dyn-star/cell.rs
+++ /dev/null
@@ -1,34 +0,0 @@
-// This test with Cell also indirectly exercises UnsafeCell in dyn*.
-//
-//@ run-pass
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::cell::Cell;
-
-trait Rw<T> {
-    fn read(&self) -> T;
-    fn write(&self, v: T);
-}
-
-impl<T: Copy> Rw<T> for Cell<T> {
-    fn read(&self) -> T {
-        self.get()
-    }
-    fn write(&self, v: T) {
-        self.set(v)
-    }
-}
-
-fn make_dyn_star() -> dyn* Rw<usize> {
-    Cell::new(42usize) as dyn* Rw<usize>
-}
-
-fn main() {
-    let x = make_dyn_star();
-
-    assert_eq!(x.read(), 42);
-    x.write(24);
-    assert_eq!(x.read(), 24);
-}
diff --git a/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.current.stderr b/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.current.stderr
deleted file mode 100644
index a0aff69f396..00000000000
--- a/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.current.stderr
+++ /dev/null
@@ -1,18 +0,0 @@
-error[E0277]: `&T` needs to have the same ABI as a pointer
-  --> $DIR/check-size-at-cast-polymorphic-bad.rs:15:15
-   |
-LL | fn polymorphic<T: Debug + ?Sized>(t: &T) {
-   |                - this type parameter needs to be `Sized`
-LL |     dyn_debug(t);
-   |               ^ `&T` needs to be a pointer-like type
-   |
-   = note: required for `&T` to implement `PointerLike`
-help: consider removing the `?Sized` bound to make the type parameter `Sized`
-   |
-LL - fn polymorphic<T: Debug + ?Sized>(t: &T) {
-LL + fn polymorphic<T: Debug>(t: &T) {
-   |
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.next.stderr b/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.next.stderr
deleted file mode 100644
index a0aff69f396..00000000000
--- a/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.next.stderr
+++ /dev/null
@@ -1,18 +0,0 @@
-error[E0277]: `&T` needs to have the same ABI as a pointer
-  --> $DIR/check-size-at-cast-polymorphic-bad.rs:15:15
-   |
-LL | fn polymorphic<T: Debug + ?Sized>(t: &T) {
-   |                - this type parameter needs to be `Sized`
-LL |     dyn_debug(t);
-   |               ^ `&T` needs to be a pointer-like type
-   |
-   = note: required for `&T` to implement `PointerLike`
-help: consider removing the `?Sized` bound to make the type parameter `Sized`
-   |
-LL - fn polymorphic<T: Debug + ?Sized>(t: &T) {
-LL + fn polymorphic<T: Debug>(t: &T) {
-   |
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.rs b/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.rs
deleted file mode 100644
index acc293a5956..00000000000
--- a/tests/ui/dyn-star/check-size-at-cast-polymorphic-bad.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-//@ revisions: current next
-//@ ignore-compare-mode-next-solver (explicit revisions)
-//@[next] compile-flags: -Znext-solver
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-
-fn dyn_debug(_: (dyn* Debug + '_)) {
-
-}
-
-fn polymorphic<T: Debug + ?Sized>(t: &T) {
-    dyn_debug(t);
-    //~^ ERROR `&T` needs to have the same ABI as a pointer
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/check-size-at-cast-polymorphic.rs b/tests/ui/dyn-star/check-size-at-cast-polymorphic.rs
deleted file mode 100644
index ceedbafd86b..00000000000
--- a/tests/ui/dyn-star/check-size-at-cast-polymorphic.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-//@ check-pass
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-
-fn dyn_debug(_: (dyn* Debug + '_)) {
-
-}
-
-fn polymorphic<T: Debug>(t: &T) {
-    dyn_debug(t);
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/check-size-at-cast.rs b/tests/ui/dyn-star/check-size-at-cast.rs
deleted file mode 100644
index e15e090b529..00000000000
--- a/tests/ui/dyn-star/check-size-at-cast.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-
-fn main() {
-    let i = [1, 2, 3, 4] as dyn* Debug;
-    //~^ ERROR `[i32; 4]` needs to have the same ABI as a pointer
-    dbg!(i);
-}
diff --git a/tests/ui/dyn-star/check-size-at-cast.stderr b/tests/ui/dyn-star/check-size-at-cast.stderr
deleted file mode 100644
index b402403ee6f..00000000000
--- a/tests/ui/dyn-star/check-size-at-cast.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-error[E0277]: `[i32; 4]` needs to have the same ABI as a pointer
-  --> $DIR/check-size-at-cast.rs:7:13
-   |
-LL |     let i = [1, 2, 3, 4] as dyn* Debug;
-   |             ^^^^^^^^^^^^ `[i32; 4]` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `[i32; 4]`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/const-and-static.rs b/tests/ui/dyn-star/const-and-static.rs
deleted file mode 100644
index cbb64261a66..00000000000
--- a/tests/ui/dyn-star/const-and-static.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-//@ check-pass
-
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete
-
-const C: dyn* Send + Sync = &();
-
-static S: dyn* Send + Sync = &();
-
-fn main() {}
diff --git a/tests/ui/dyn-star/const-and-static.stderr b/tests/ui/dyn-star/const-and-static.stderr
deleted file mode 100644
index df8f42fb0f5..00000000000
--- a/tests/ui/dyn-star/const-and-static.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/const-and-static.rs:3:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/const.rs b/tests/ui/dyn-star/const.rs
deleted file mode 100644
index 036d678dc02..00000000000
--- a/tests/ui/dyn-star/const.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-//@ run-pass
-#![feature(dyn_star)]
-#![allow(unused, incomplete_features)]
-
-use std::fmt::Debug;
-
-fn make_dyn_star() {
-    let i = 42usize;
-    let dyn_i: dyn* Debug = i;
-}
-
-fn main() {
-    make_dyn_star();
-}
diff --git a/tests/ui/dyn-star/dispatch-on-pin-mut.rs b/tests/ui/dyn-star/dispatch-on-pin-mut.rs
deleted file mode 100644
index be40fa30f0d..00000000000
--- a/tests/ui/dyn-star/dispatch-on-pin-mut.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-//@ run-pass
-//@ edition:2021
-//@ check-run-results
-
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-use std::future::Future;
-
-async fn foo(f: dyn* Future<Output = i32>) {
-    println!("value: {}", f.await);
-}
-
-async fn async_main() {
-    foo(Box::pin(async { 1 })).await
-}
-
-// ------------------------------------------------------------------------- //
-// Implementation Details Below...
-
-use std::pin::pin;
-use std::task::*;
-
-fn main() {
-    let mut fut = pin!(async_main());
-
-    // Poll loop, just to test the future...
-    let ctx = &mut Context::from_waker(Waker::noop());
-
-    loop {
-        match fut.as_mut().poll(ctx) {
-            Poll::Pending => {}
-            Poll::Ready(()) => break,
-        }
-    }
-}
diff --git a/tests/ui/dyn-star/dispatch-on-pin-mut.run.stdout b/tests/ui/dyn-star/dispatch-on-pin-mut.run.stdout
deleted file mode 100644
index 96c5ca6985f..00000000000
--- a/tests/ui/dyn-star/dispatch-on-pin-mut.run.stdout
+++ /dev/null
@@ -1 +0,0 @@
-value: 1
diff --git a/tests/ui/dyn-star/dispatch-on-pin-mut.stderr b/tests/ui/dyn-star/dispatch-on-pin-mut.stderr
deleted file mode 100644
index cb9c7815814..00000000000
--- a/tests/ui/dyn-star/dispatch-on-pin-mut.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/dispatch-on-pin-mut.rs:5:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.rs b/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.rs
deleted file mode 100644
index abc66df8b36..00000000000
--- a/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.rs
+++ /dev/null
@@ -1,27 +0,0 @@
-//@ run-pass
-//@ check-run-results
-
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-trait AddOne {
-    fn add1(&mut self) -> usize;
-}
-
-impl AddOne for usize {
-    fn add1(&mut self) -> usize {
-        *self += 1;
-        *self
-    }
-}
-
-fn add_one(i: &mut (dyn* AddOne + '_)) -> usize {
-    i.add1()
-}
-
-fn main() {
-    let mut x = 42usize as dyn* AddOne;
-
-    println!("{}", add_one(&mut x));
-    println!("{}", add_one(&mut x));
-}
diff --git a/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.run.stdout b/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.run.stdout
deleted file mode 100644
index b4db3ed707d..00000000000
--- a/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.run.stdout
+++ /dev/null
@@ -1,2 +0,0 @@
-43
-44
diff --git a/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.stderr b/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.stderr
deleted file mode 100644
index bcd014f8dc3..00000000000
--- a/tests/ui/dyn-star/dont-unsize-coerce-dyn-star.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/dont-unsize-coerce-dyn-star.rs:4:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/drop.rs b/tests/ui/dyn-star/drop.rs
deleted file mode 100644
index bc746331527..00000000000
--- a/tests/ui/dyn-star/drop.rs
+++ /dev/null
@@ -1,28 +0,0 @@
-//@ run-pass
-//@ check-run-results
-#![feature(dyn_star, pointer_like_trait)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-use std::marker::PointerLike;
-
-#[derive(Debug)]
-#[repr(transparent)]
-struct Foo(#[allow(dead_code)] usize);
-
-// FIXME(dyn_star): Make this into a derive.
-impl PointerLike for Foo {}
-
-impl Drop for Foo {
-    fn drop(&mut self) {
-        println!("destructor called");
-    }
-}
-
-fn make_dyn_star(i: Foo) {
-    let _dyn_i: dyn* Debug = i;
-}
-
-fn main() {
-    make_dyn_star(Foo(42));
-}
diff --git a/tests/ui/dyn-star/drop.run.stdout b/tests/ui/dyn-star/drop.run.stdout
deleted file mode 100644
index dadb33ccf3a..00000000000
--- a/tests/ui/dyn-star/drop.run.stdout
+++ /dev/null
@@ -1 +0,0 @@
-destructor called
diff --git a/tests/ui/dyn-star/dyn-async-trait.rs b/tests/ui/dyn-star/dyn-async-trait.rs
deleted file mode 100644
index a673b269910..00000000000
--- a/tests/ui/dyn-star/dyn-async-trait.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-//@ check-pass
-//@ edition: 2021
-
-// This test case is meant to demonstrate how close we can get to async
-// functions in dyn traits with the current level of dyn* support.
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::future::Future;
-
-trait DynAsyncCounter {
-    fn increment<'a>(&'a mut self) -> dyn* Future<Output = usize> + 'a;
-}
-
-struct MyCounter {
-    count: usize,
-}
-
-impl DynAsyncCounter for MyCounter {
-    fn increment<'a>(&'a mut self) -> dyn* Future<Output = usize> + 'a {
-        Box::pin(async {
-            self.count += 1;
-            self.count
-        })
-    }
-}
-
-async fn do_counter(counter: &mut dyn DynAsyncCounter) -> usize {
-    counter.increment().await
-}
-
-fn main() {
-    let mut counter = MyCounter { count: 0 };
-    let _ = do_counter(&mut counter);
-}
diff --git a/tests/ui/dyn-star/dyn-pointer-like.rs b/tests/ui/dyn-star/dyn-pointer-like.rs
deleted file mode 100644
index f26fa90505c..00000000000
--- a/tests/ui/dyn-star/dyn-pointer-like.rs
+++ /dev/null
@@ -1,23 +0,0 @@
-// Test that `dyn PointerLike` and `dyn* PointerLike` do not implement `PointerLike`.
-// This used to ICE during codegen.
-
-#![crate_type = "lib"]
-
-#![feature(pointer_like_trait, dyn_star)]
-#![feature(unsized_fn_params)]
-#![expect(incomplete_features)]
-#![expect(internal_features)]
-
-use std::marker::PointerLike;
-
-pub fn lol(x: dyn* PointerLike) {
-    foo(x); //~ ERROR `dyn* PointerLike` needs to have the same ABI as a pointer
-}
-
-pub fn uwu(x: dyn PointerLike) {
-    foo(x); //~ ERROR `dyn PointerLike` needs to have the same ABI as a pointer
-}
-
-fn foo<T: PointerLike + ?Sized>(x: T) {
-    let _: dyn* PointerLike = x;
-}
diff --git a/tests/ui/dyn-star/dyn-pointer-like.stderr b/tests/ui/dyn-star/dyn-pointer-like.stderr
deleted file mode 100644
index 4c558e92d3f..00000000000
--- a/tests/ui/dyn-star/dyn-pointer-like.stderr
+++ /dev/null
@@ -1,39 +0,0 @@
-error[E0277]: `dyn* PointerLike` needs to have the same ABI as a pointer
-  --> $DIR/dyn-pointer-like.rs:14:9
-   |
-LL |     foo(x);
-   |     --- ^ the trait `PointerLike` is not implemented for `dyn* PointerLike`
-   |     |
-   |     required by a bound introduced by this call
-   |
-   = note: the trait bound `dyn* PointerLike: PointerLike` is not satisfied
-note: required by a bound in `foo`
-  --> $DIR/dyn-pointer-like.rs:21:11
-   |
-LL | fn foo<T: PointerLike + ?Sized>(x: T) {
-   |           ^^^^^^^^^^^ required by this bound in `foo`
-help: consider borrowing here
-   |
-LL |     foo(&x);
-   |         +
-LL |     foo(&mut x);
-   |         ++++
-
-error[E0277]: `dyn PointerLike` needs to have the same ABI as a pointer
-  --> $DIR/dyn-pointer-like.rs:18:9
-   |
-LL |     foo(x);
-   |     --- ^ `dyn PointerLike` needs to be a pointer-like type
-   |     |
-   |     required by a bound introduced by this call
-   |
-   = help: the trait `PointerLike` is not implemented for `dyn PointerLike`
-note: required by a bound in `foo`
-  --> $DIR/dyn-pointer-like.rs:21:11
-   |
-LL | fn foo<T: PointerLike + ?Sized>(x: T) {
-   |           ^^^^^^^^^^^ required by this bound in `foo`
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/dyn-star-to-dyn.rs b/tests/ui/dyn-star/dyn-star-to-dyn.rs
deleted file mode 100644
index 99f673df868..00000000000
--- a/tests/ui/dyn-star/dyn-star-to-dyn.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-//@ run-pass
-
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-use std::fmt::Debug;
-
-fn main() {
-    let x: dyn* Debug = &42;
-    let x = Box::new(x) as Box<dyn Debug>;
-    assert_eq!("42", format!("{x:?}"));
-
-    // Also test opposite direction.
-    let x: Box<dyn Debug> = Box::new(42);
-    let x = &x as dyn* Debug;
-    assert_eq!("42", format!("{x:?}"));
-}
diff --git a/tests/ui/dyn-star/dyn-star-to-dyn.stderr b/tests/ui/dyn-star/dyn-star-to-dyn.stderr
deleted file mode 100644
index 03aedf5f797..00000000000
--- a/tests/ui/dyn-star/dyn-star-to-dyn.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/dyn-star-to-dyn.rs:3:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/dyn-to-rigid.rs b/tests/ui/dyn-star/dyn-to-rigid.rs
deleted file mode 100644
index dc33e288f24..00000000000
--- a/tests/ui/dyn-star/dyn-to-rigid.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-trait Tr {}
-
-fn f(x: dyn* Tr) -> usize {
-    x as usize
-    //~^ ERROR non-primitive cast: `(dyn* Tr + 'static)` as `usize`
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/dyn-to-rigid.stderr b/tests/ui/dyn-star/dyn-to-rigid.stderr
deleted file mode 100644
index 49b8f268aa4..00000000000
--- a/tests/ui/dyn-star/dyn-to-rigid.stderr
+++ /dev/null
@@ -1,9 +0,0 @@
-error[E0605]: non-primitive cast: `(dyn* Tr + 'static)` as `usize`
-  --> $DIR/dyn-to-rigid.rs:7:5
-   |
-LL |     x as usize
-   |     ^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0605`.
diff --git a/tests/ui/dyn-star/enum-cast.rs b/tests/ui/dyn-star/enum-cast.rs
deleted file mode 100644
index 3cc7390eb12..00000000000
--- a/tests/ui/dyn-star/enum-cast.rs
+++ /dev/null
@@ -1,23 +0,0 @@
-//@ check-pass
-
-// This used to ICE, because the compiler confused a pointer-like to dyn* coercion
-// with a c-like enum to integer cast.
-
-#![feature(dyn_star, pointer_like_trait)]
-#![expect(incomplete_features)]
-
-use std::marker::PointerLike;
-
-#[repr(transparent)]
-enum E {
-    Num(usize),
-}
-
-impl PointerLike for E {}
-
-trait Trait {}
-impl Trait for E {}
-
-fn main() {
-    let _ = E::Num(42) as dyn* Trait;
-}
diff --git a/tests/ui/dyn-star/error.rs b/tests/ui/dyn-star/error.rs
deleted file mode 100644
index 1d252d2ce42..00000000000
--- a/tests/ui/dyn-star/error.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-
-trait Foo {}
-
-fn make_dyn_star() {
-    let i = 42usize;
-    let dyn_i: dyn* Foo = i; //~ ERROR trait bound `usize: Foo` is not satisfied
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/error.stderr b/tests/ui/dyn-star/error.stderr
deleted file mode 100644
index 55981c03bac..00000000000
--- a/tests/ui/dyn-star/error.stderr
+++ /dev/null
@@ -1,15 +0,0 @@
-error[E0277]: the trait bound `usize: Foo` is not satisfied
-  --> $DIR/error.rs:10:27
-   |
-LL |     let dyn_i: dyn* Foo = i;
-   |                           ^ the trait `Foo` is not implemented for `usize`
-   |
-help: this trait has no implementations, consider adding one
-  --> $DIR/error.rs:6:1
-   |
-LL | trait Foo {}
-   | ^^^^^^^^^
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/feature-gate-dyn_star.rs b/tests/ui/dyn-star/feature-gate-dyn_star.rs
deleted file mode 100644
index b12fd7755be..00000000000
--- a/tests/ui/dyn-star/feature-gate-dyn_star.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-// Feature gate test for dyn_star
-
-/// dyn* is not necessarily the final surface syntax (if we have one at all),
-/// but for now we will support it to aid in writing tests independently.
-pub fn dyn_star_parameter(_: &dyn* Send) {
-    //~^ ERROR `dyn*` trait objects are experimental
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/feature-gate-dyn_star.stderr b/tests/ui/dyn-star/feature-gate-dyn_star.stderr
deleted file mode 100644
index c3e99b20d06..00000000000
--- a/tests/ui/dyn-star/feature-gate-dyn_star.stderr
+++ /dev/null
@@ -1,13 +0,0 @@
-error[E0658]: `dyn*` trait objects are experimental
-  --> $DIR/feature-gate-dyn_star.rs:5:31
-   |
-LL | pub fn dyn_star_parameter(_: &dyn* Send) {
-   |                               ^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = help: add `#![feature(dyn_star)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0658`.
diff --git a/tests/ui/dyn-star/float-as-dyn-star.rs b/tests/ui/dyn-star/float-as-dyn-star.rs
deleted file mode 100644
index 1b629c64c25..00000000000
--- a/tests/ui/dyn-star/float-as-dyn-star.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-//@ only-x86_64
-
-#![feature(dyn_star, pointer_like_trait)]
-//~^ WARN the feature `dyn_star` is incomplete
-
-use std::fmt::Debug;
-use std::marker::PointerLike;
-
-fn make_dyn_star() -> dyn* Debug + 'static {
-    f32::from_bits(0x1) as f64
-    //~^ ERROR `f64` needs to have the same ABI as a pointer
-}
-
-fn main() {
-    println!("{:?}", make_dyn_star());
-}
diff --git a/tests/ui/dyn-star/float-as-dyn-star.stderr b/tests/ui/dyn-star/float-as-dyn-star.stderr
deleted file mode 100644
index 06071a27afc..00000000000
--- a/tests/ui/dyn-star/float-as-dyn-star.stderr
+++ /dev/null
@@ -1,23 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/float-as-dyn-star.rs:3:12
-   |
-LL | #![feature(dyn_star, pointer_like_trait)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0277]: `f64` needs to have the same ABI as a pointer
-  --> $DIR/float-as-dyn-star.rs:10:5
-   |
-LL |     f32::from_bits(0x1) as f64
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ `f64` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `f64`
-   = help: the following other types implement trait `PointerLike`:
-             isize
-             usize
-
-error: aborting due to 1 previous error; 1 warning emitted
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/gated-span.rs b/tests/ui/dyn-star/gated-span.rs
deleted file mode 100644
index a747987bd24..00000000000
--- a/tests/ui/dyn-star/gated-span.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-macro_rules! t {
-    ($t:ty) => {}
-}
-
-t!(dyn* Send);
-//~^ ERROR `dyn*` trait objects are experimental
-
-fn main() {}
diff --git a/tests/ui/dyn-star/gated-span.stderr b/tests/ui/dyn-star/gated-span.stderr
deleted file mode 100644
index 8ba6d7969fc..00000000000
--- a/tests/ui/dyn-star/gated-span.stderr
+++ /dev/null
@@ -1,13 +0,0 @@
-error[E0658]: `dyn*` trait objects are experimental
-  --> $DIR/gated-span.rs:5:4
-   |
-LL | t!(dyn* Send);
-   |    ^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = help: add `#![feature(dyn_star)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0658`.
diff --git a/tests/ui/dyn-star/illegal.rs b/tests/ui/dyn-star/illegal.rs
deleted file mode 100644
index ce0d784fcd2..00000000000
--- a/tests/ui/dyn-star/illegal.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete
-
-trait Foo {}
-
-pub fn lol(x: dyn* Foo + Send) {
-    x as dyn* Foo;
-    //~^ ERROR casting `(dyn* Foo + Send + 'static)` as `dyn* Foo` is invalid
-}
-
-fn lol2(x: &dyn Foo) {
-    *x as dyn* Foo;
-    //~^ ERROR `dyn Foo` needs to have the same ABI as a pointer
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/illegal.stderr b/tests/ui/dyn-star/illegal.stderr
deleted file mode 100644
index fdf3c813a23..00000000000
--- a/tests/ui/dyn-star/illegal.stderr
+++ /dev/null
@@ -1,27 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/illegal.rs:1:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0606]: casting `(dyn* Foo + Send + 'static)` as `dyn* Foo` is invalid
-  --> $DIR/illegal.rs:7:5
-   |
-LL |     x as dyn* Foo;
-   |     ^^^^^^^^^^^^^
-
-error[E0277]: `dyn Foo` needs to have the same ABI as a pointer
-  --> $DIR/illegal.rs:12:5
-   |
-LL |     *x as dyn* Foo;
-   |     ^^ `dyn Foo` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `dyn Foo`
-
-error: aborting due to 2 previous errors; 1 warning emitted
-
-Some errors have detailed explanations: E0277, E0606.
-For more information about an error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/issue-102430.rs b/tests/ui/dyn-star/issue-102430.rs
deleted file mode 100644
index 4e48d5e2f5d..00000000000
--- a/tests/ui/dyn-star/issue-102430.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-//@ check-pass
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-trait AddOne {
-    fn add1(&mut self) -> usize;
-}
-
-impl AddOne for usize {
-    fn add1(&mut self) -> usize {
-        *self += 1;
-        *self
-    }
-}
-
-impl AddOne for &mut usize {
-    fn add1(&mut self) -> usize {
-        (*self).add1()
-    }
-}
-
-fn add_one(mut i: dyn* AddOne + '_) -> usize {
-    i.add1()
-}
-
-fn main() {
-    let mut x = 42usize;
-    let y = &mut x as (dyn* AddOne + '_);
-
-    println!("{}", add_one(y));
-}
diff --git a/tests/ui/dyn-star/make-dyn-star.rs b/tests/ui/dyn-star/make-dyn-star.rs
deleted file mode 100644
index 24004335f06..00000000000
--- a/tests/ui/dyn-star/make-dyn-star.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-//@ run-pass
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-
-fn make_dyn_star(i: usize) {
-    let _dyn_i: dyn* Debug = i;
-}
-
-fn make_dyn_star_explicit(i: usize) {
-    let _dyn_i: dyn* Debug = i as dyn* Debug;
-}
-
-fn main() {
-    make_dyn_star(42);
-    make_dyn_star_explicit(42);
-}
diff --git a/tests/ui/dyn-star/method.rs b/tests/ui/dyn-star/method.rs
deleted file mode 100644
index 0d0855eec7f..00000000000
--- a/tests/ui/dyn-star/method.rs
+++ /dev/null
@@ -1,27 +0,0 @@
-//@ run-pass
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-trait Foo {
-    fn get(&self) -> usize;
-}
-
-impl Foo for usize {
-    fn get(&self) -> usize {
-        *self
-    }
-}
-
-fn invoke_dyn_star(i: dyn* Foo) -> usize {
-    i.get()
-}
-
-fn make_and_invoke_dyn_star(i: usize) -> usize {
-    let dyn_i: dyn* Foo = i;
-    invoke_dyn_star(dyn_i)
-}
-
-fn main() {
-    println!("{}", make_and_invoke_dyn_star(42));
-}
diff --git a/tests/ui/dyn-star/no-explicit-dyn-star-cast.rs b/tests/ui/dyn-star/no-explicit-dyn-star-cast.rs
deleted file mode 100644
index 2d28f516ab5..00000000000
--- a/tests/ui/dyn-star/no-explicit-dyn-star-cast.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-use std::fmt::Debug;
-
-fn make_dyn_star() {
-    let i = 42usize;
-    let dyn_i: dyn* Debug = i as dyn* Debug;
-    //~^ ERROR casting `usize` as `dyn* Debug` is invalid
-    //~| ERROR `dyn*` trait objects are experimental
-    //~| ERROR `dyn*` trait objects are experimental
-}
-
-fn main() {
-    make_dyn_star();
-}
diff --git a/tests/ui/dyn-star/no-explicit-dyn-star-cast.stderr b/tests/ui/dyn-star/no-explicit-dyn-star-cast.stderr
deleted file mode 100644
index bb4c612cedd..00000000000
--- a/tests/ui/dyn-star/no-explicit-dyn-star-cast.stderr
+++ /dev/null
@@ -1,30 +0,0 @@
-error[E0658]: `dyn*` trait objects are experimental
-  --> $DIR/no-explicit-dyn-star-cast.rs:5:16
-   |
-LL |     let dyn_i: dyn* Debug = i as dyn* Debug;
-   |                ^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = help: add `#![feature(dyn_star)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: `dyn*` trait objects are experimental
-  --> $DIR/no-explicit-dyn-star-cast.rs:5:34
-   |
-LL |     let dyn_i: dyn* Debug = i as dyn* Debug;
-   |                                  ^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = help: add `#![feature(dyn_star)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0606]: casting `usize` as `dyn* Debug` is invalid
-  --> $DIR/no-explicit-dyn-star-cast.rs:5:29
-   |
-LL |     let dyn_i: dyn* Debug = i as dyn* Debug;
-   |                             ^^^^^^^^^^^^^^^
-
-error: aborting due to 3 previous errors
-
-Some errors have detailed explanations: E0606, E0658.
-For more information about an error, try `rustc --explain E0606`.
diff --git a/tests/ui/dyn-star/no-explicit-dyn-star.rs b/tests/ui/dyn-star/no-explicit-dyn-star.rs
deleted file mode 100644
index 0847597450e..00000000000
--- a/tests/ui/dyn-star/no-explicit-dyn-star.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-//@ aux-build:dyn-star-foreign.rs
-
-extern crate dyn_star_foreign;
-
-fn main() {
-    dyn_star_foreign::require_dyn_star_display(1usize as _);
-    //~^ ERROR casting `usize` as `dyn* std::fmt::Display` is invalid
-}
diff --git a/tests/ui/dyn-star/no-explicit-dyn-star.stderr b/tests/ui/dyn-star/no-explicit-dyn-star.stderr
deleted file mode 100644
index 641404aa09e..00000000000
--- a/tests/ui/dyn-star/no-explicit-dyn-star.stderr
+++ /dev/null
@@ -1,9 +0,0 @@
-error[E0606]: casting `usize` as `dyn* std::fmt::Display` is invalid
-  --> $DIR/no-explicit-dyn-star.rs:6:48
-   |
-LL |     dyn_star_foreign::require_dyn_star_display(1usize as _);
-   |                                                ^^^^^^^^^^^
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0606`.
diff --git a/tests/ui/dyn-star/no-implicit-dyn-star.rs b/tests/ui/dyn-star/no-implicit-dyn-star.rs
deleted file mode 100644
index 7af3f9a734b..00000000000
--- a/tests/ui/dyn-star/no-implicit-dyn-star.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-//@ aux-build:dyn-star-foreign.rs
-
-extern crate dyn_star_foreign;
-
-fn main() {
-    dyn_star_foreign::require_dyn_star_display(1usize);
-    //~^ ERROR mismatched types
-}
diff --git a/tests/ui/dyn-star/no-implicit-dyn-star.stderr b/tests/ui/dyn-star/no-implicit-dyn-star.stderr
deleted file mode 100644
index d1d3da9ca70..00000000000
--- a/tests/ui/dyn-star/no-implicit-dyn-star.stderr
+++ /dev/null
@@ -1,20 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/no-implicit-dyn-star.rs:6:48
-   |
-LL |     dyn_star_foreign::require_dyn_star_display(1usize);
-   |     ------------------------------------------ ^^^^^^ expected `dyn Display`, found `usize`
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected trait object `(dyn* std::fmt::Display + 'static)`
-                      found type `usize`
-   = help: `usize` implements `Display`, `#[feature(dyn_star)]` is likely not enabled; that feature it is currently incomplete
-note: function defined here
-  --> $DIR/auxiliary/dyn-star-foreign.rs:5:8
-   |
-LL | pub fn require_dyn_star_display(_: dyn* Display) {}
-   |        ^^^^^^^^^^^^^^^^^^^^^^^^
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs b/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs
deleted file mode 100644
index 1702fc1ed49..00000000000
--- a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-#![expect(incomplete_features)]
-#![feature(dyn_star)]
-
-trait A: B {}
-trait B {}
-impl A for usize {}
-impl B for usize {}
-
-fn main() {
-    let x: Box<dyn* A> = Box::new(1usize as dyn* A);
-    let y: Box<dyn* B> = x;
-    //~^ ERROR mismatched types
-}
diff --git a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr b/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr
deleted file mode 100644
index 289d85072e6..00000000000
--- a/tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr
+++ /dev/null
@@ -1,14 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/no-unsize-coerce-dyn-trait.rs:11:26
-   |
-LL |     let y: Box<dyn* B> = x;
-   |            -----------   ^ expected trait `B`, found trait `A`
-   |            |
-   |            expected due to this
-   |
-   = note: expected struct `Box<dyn* B>`
-              found struct `Box<dyn* A>`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/dyn-star/param-env-region-infer.current.stderr b/tests/ui/dyn-star/param-env-region-infer.current.stderr
deleted file mode 100644
index 6e464c17014..00000000000
--- a/tests/ui/dyn-star/param-env-region-infer.current.stderr
+++ /dev/null
@@ -1,9 +0,0 @@
-error[E0282]: type annotations needed
-  --> $DIR/param-env-region-infer.rs:20:10
-   |
-LL |     t as _
-   |          ^ cannot infer type
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0282`.
diff --git a/tests/ui/dyn-star/param-env-region-infer.rs b/tests/ui/dyn-star/param-env-region-infer.rs
deleted file mode 100644
index 842964ad284..00000000000
--- a/tests/ui/dyn-star/param-env-region-infer.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-//@ revisions: current
-//@ incremental
-
-// FIXME(-Znext-solver): This currently results in unstable query results:
-// `normalizes-to(opaque, opaque)` changes from `Maybe(Ambiguous)` to `Maybe(Overflow)`
-// once the hidden type of the opaque is already defined to be itself.
-//@ unused-revision-names: next
-
-// checks that we don't ICE if there are region inference variables in the environment
-// when computing `PointerLike` builtin candidates.
-
-#![feature(dyn_star, pointer_like_trait)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-use std::marker::PointerLike;
-
-fn make_dyn_star<'a, T: PointerLike + Debug + 'a>(t: T) -> impl PointerLike + Debug + 'a {
-    //[next]~^ ERROR cycle detected when computing
-    t as _
-    //[current]~^ ERROR type annotations needed
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/pointer-like-impl-rules.rs b/tests/ui/dyn-star/pointer-like-impl-rules.rs
deleted file mode 100644
index c234e86e09a..00000000000
--- a/tests/ui/dyn-star/pointer-like-impl-rules.rs
+++ /dev/null
@@ -1,82 +0,0 @@
-//@ check-fail
-
-#![feature(extern_types)]
-#![feature(pointer_like_trait)]
-
-use std::marker::PointerLike;
-
-struct NotReprTransparent;
-impl PointerLike for NotReprTransparent {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: the struct `NotReprTransparent` is not `repr(transparent)`
-
-#[repr(transparent)]
-struct FieldIsPl(usize);
-impl PointerLike for FieldIsPl {}
-
-#[repr(transparent)]
-struct FieldIsPlAndHasOtherField(usize, ());
-impl PointerLike for FieldIsPlAndHasOtherField {}
-
-#[repr(transparent)]
-struct FieldIsNotPl(u8);
-impl PointerLike for FieldIsNotPl {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: the field `0` of struct `FieldIsNotPl` does not implement `PointerLike`
-
-#[repr(transparent)]
-struct GenericFieldIsNotPl<T>(T);
-impl<T> PointerLike for GenericFieldIsNotPl<T> {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: the field `0` of struct `GenericFieldIsNotPl<T>` does not implement `PointerLike`
-
-#[repr(transparent)]
-struct GenericFieldIsPl<T>(T);
-impl<T: PointerLike> PointerLike for GenericFieldIsPl<T> {}
-
-#[repr(transparent)]
-struct IsZeroSized(());
-impl PointerLike for IsZeroSized {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: the struct `IsZeroSized` is `repr(transparent)`, but does not have a non-trivial field
-
-trait SomeTrait {}
-impl PointerLike for dyn SomeTrait {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: types of dynamic or unknown size
-
-extern "C" {
-    type ExternType;
-}
-impl PointerLike for ExternType {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: types of dynamic or unknown size
-
-struct LocalSizedType(&'static str);
-struct LocalUnsizedType(str);
-
-// This is not a special error but a normal coherence error,
-// which should still happen.
-impl PointerLike for &LocalSizedType {}
-//~^ ERROR: conflicting implementations of trait `PointerLike`
-//~| NOTE: conflicting implementation in crate `core`
-
-impl PointerLike for &LocalUnsizedType {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: references to dynamically-sized types are too large to be `PointerLike`
-
-impl PointerLike for Box<LocalSizedType> {}
-//~^ ERROR: conflicting implementations of trait `PointerLike`
-//~| NOTE: conflicting implementation in crate `alloc`
-
-impl PointerLike for Box<LocalUnsizedType> {}
-//~^ ERROR: implementation must be applied to type that
-//~| NOTE: boxes of dynamically-sized types are too large to be `PointerLike`
-
-fn expects_pointer_like(x: impl PointerLike) {}
-
-fn main() {
-    expects_pointer_like(FieldIsPl(1usize));
-    expects_pointer_like(FieldIsPlAndHasOtherField(1usize, ()));
-    expects_pointer_like(GenericFieldIsPl(1usize));
-}
diff --git a/tests/ui/dyn-star/pointer-like-impl-rules.stderr b/tests/ui/dyn-star/pointer-like-impl-rules.stderr
deleted file mode 100644
index 39f08f442c4..00000000000
--- a/tests/ui/dyn-star/pointer-like-impl-rules.stderr
+++ /dev/null
@@ -1,85 +0,0 @@
-error[E0119]: conflicting implementations of trait `PointerLike` for type `&LocalSizedType`
-  --> $DIR/pointer-like-impl-rules.rs:60:1
-   |
-LL | impl PointerLike for &LocalSizedType {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: conflicting implementation in crate `core`:
-           - impl<T> PointerLike for &T;
-
-error[E0119]: conflicting implementations of trait `PointerLike` for type `Box<LocalSizedType>`
-  --> $DIR/pointer-like-impl-rules.rs:68:1
-   |
-LL | impl PointerLike for Box<LocalSizedType> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: conflicting implementation in crate `alloc`:
-           - impl<T> PointerLike for Box<T>;
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:9:1
-   |
-LL | impl PointerLike for NotReprTransparent {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: the struct `NotReprTransparent` is not `repr(transparent)`
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:23:1
-   |
-LL | impl PointerLike for FieldIsNotPl {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: the field `0` of struct `FieldIsNotPl` does not implement `PointerLike`
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:29:1
-   |
-LL | impl<T> PointerLike for GenericFieldIsNotPl<T> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: the field `0` of struct `GenericFieldIsNotPl<T>` does not implement `PointerLike`
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:39:1
-   |
-LL | impl PointerLike for IsZeroSized {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: the struct `IsZeroSized` is `repr(transparent)`, but does not have a non-trivial field (it is zero-sized)
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:44:1
-   |
-LL | impl PointerLike for dyn SomeTrait {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: types of dynamic or unknown size may not implement `PointerLike`
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:51:1
-   |
-LL | impl PointerLike for ExternType {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: types of dynamic or unknown size may not implement `PointerLike`
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:64:1
-   |
-LL | impl PointerLike for &LocalUnsizedType {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: references to dynamically-sized types are too large to be `PointerLike`
-
-error: implementation must be applied to type that has the same ABI as a pointer, or is `repr(transparent)` and whose field is `PointerLike`
-  --> $DIR/pointer-like-impl-rules.rs:72:1
-   |
-LL | impl PointerLike for Box<LocalUnsizedType> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: boxes of dynamically-sized types are too large to be `PointerLike`
-
-error: aborting due to 10 previous errors
-
-For more information about this error, try `rustc --explain E0119`.
diff --git a/tests/ui/dyn-star/return.rs b/tests/ui/dyn-star/return.rs
deleted file mode 100644
index 47d95d1d643..00000000000
--- a/tests/ui/dyn-star/return.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-//@ check-pass
-
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-fn _foo() -> dyn* Unpin {
-    4usize
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/return.stderr b/tests/ui/dyn-star/return.stderr
deleted file mode 100644
index 9c265682904..00000000000
--- a/tests/ui/dyn-star/return.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/return.rs:3:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/syntax.rs b/tests/ui/dyn-star/syntax.rs
deleted file mode 100644
index d4983404de2..00000000000
--- a/tests/ui/dyn-star/syntax.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-// Make sure we can parse the `dyn* Trait` syntax
-//
-//@ check-pass
-
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-pub fn dyn_star_parameter(_: dyn* Send) {
-}
-
-fn main() {}
diff --git a/tests/ui/dyn-star/thin.next.stderr b/tests/ui/dyn-star/thin.next.stderr
deleted file mode 100644
index ef251062afc..00000000000
--- a/tests/ui/dyn-star/thin.next.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/thin.rs:6:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/thin.old.stderr b/tests/ui/dyn-star/thin.old.stderr
deleted file mode 100644
index ef251062afc..00000000000
--- a/tests/ui/dyn-star/thin.old.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/thin.rs:6:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-warning: 1 warning emitted
-
diff --git a/tests/ui/dyn-star/thin.rs b/tests/ui/dyn-star/thin.rs
deleted file mode 100644
index 6df70f560de..00000000000
--- a/tests/ui/dyn-star/thin.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-//@check-pass
-//@revisions: old next
-//@[next] compile-flags: -Znext-solver
-
-#![feature(ptr_metadata)]
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-use std::fmt::Debug;
-use std::ptr::Thin;
-
-fn check_thin<T: ?Sized + Thin>() {}
-
-fn main() {
-    check_thin::<dyn* Debug>();
-}
diff --git a/tests/ui/dyn-star/union.rs b/tests/ui/dyn-star/union.rs
deleted file mode 100644
index ad3a85a937a..00000000000
--- a/tests/ui/dyn-star/union.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-#![feature(dyn_star)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-
-union Union {
-    x: usize,
-}
-
-trait Trait {}
-impl Trait for Union {}
-
-fn bar(_: dyn* Trait) {}
-
-fn main() {
-    bar(Union { x: 0usize });
-    //~^ ERROR `Union` needs to have the same ABI as a pointer
-}
diff --git a/tests/ui/dyn-star/union.stderr b/tests/ui/dyn-star/union.stderr
deleted file mode 100644
index 906eb4f5163..00000000000
--- a/tests/ui/dyn-star/union.stderr
+++ /dev/null
@@ -1,20 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/union.rs:1:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0277]: `Union` needs to have the same ABI as a pointer
-  --> $DIR/union.rs:14:9
-   |
-LL |     bar(Union { x: 0usize });
-   |         ^^^^^^^^^^^^^^^^^^^ `Union` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `Union`
-
-error: aborting due to 1 previous error; 1 warning emitted
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/dyn-star/unsize-into-ref-dyn-star.rs b/tests/ui/dyn-star/unsize-into-ref-dyn-star.rs
deleted file mode 100644
index 1e8cafe1561..00000000000
--- a/tests/ui/dyn-star/unsize-into-ref-dyn-star.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-use std::fmt::Debug;
-
-fn main() {
-    let i = 42 as &dyn* Debug;
-    //~^ ERROR non-primitive cast: `i32` as `&dyn* Debug`
-}
diff --git a/tests/ui/dyn-star/unsize-into-ref-dyn-star.stderr b/tests/ui/dyn-star/unsize-into-ref-dyn-star.stderr
deleted file mode 100644
index b3274580afe..00000000000
--- a/tests/ui/dyn-star/unsize-into-ref-dyn-star.stderr
+++ /dev/null
@@ -1,9 +0,0 @@
-error[E0605]: non-primitive cast: `i32` as `&dyn* Debug`
-  --> $DIR/unsize-into-ref-dyn-star.rs:7:13
-   |
-LL |     let i = 42 as &dyn* Debug;
-   |             ^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0605`.
diff --git a/tests/ui/dyn-star/upcast.rs b/tests/ui/dyn-star/upcast.rs
deleted file mode 100644
index 01e1b94f87e..00000000000
--- a/tests/ui/dyn-star/upcast.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-//@ known-bug: #104800
-
-#![feature(dyn_star)]
-
-trait Foo: Bar {
-    fn hello(&self);
-}
-
-trait Bar {
-    fn world(&self);
-}
-
-struct W(usize);
-
-impl Foo for W {
-    fn hello(&self) {
-        println!("hello!");
-    }
-}
-
-impl Bar for W {
-    fn world(&self) {
-        println!("world!");
-    }
-}
-
-fn main() {
-    let w: dyn* Foo = W(0);
-    w.hello();
-    let w: dyn* Bar = w;
-    w.world();
-}
diff --git a/tests/ui/dyn-star/upcast.stderr b/tests/ui/dyn-star/upcast.stderr
deleted file mode 100644
index 3f244d4b6ae..00000000000
--- a/tests/ui/dyn-star/upcast.stderr
+++ /dev/null
@@ -1,28 +0,0 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/upcast.rs:3:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
-error[E0277]: `W` needs to have the same ABI as a pointer
-  --> $DIR/upcast.rs:28:23
-   |
-LL |     let w: dyn* Foo = W(0);
-   |                       ^^^^ `W` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `W`
-
-error[E0277]: `dyn* Foo` needs to have the same ABI as a pointer
-  --> $DIR/upcast.rs:30:23
-   |
-LL |     let w: dyn* Bar = w;
-   |                       ^ `dyn* Foo` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `dyn* Foo`
-
-error: aborting due to 2 previous errors; 1 warning emitted
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/enum-discriminant/eval-error.stderr b/tests/ui/enum-discriminant/eval-error.stderr
index c29d258a90b..77449656ea6 100644
--- a/tests/ui/enum-discriminant/eval-error.stderr
+++ b/tests/ui/enum-discriminant/eval-error.stderr
@@ -15,6 +15,18 @@ LL | |     A
 LL | | }
    | |_- not a struct or union
 
+error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
+  --> $DIR/eval-error.rs:2:5
+   |
+LL |     a: str,
+   |     ^^^^^^
+   |
+   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
+help: wrap the field type in `ManuallyDrop<...>`
+   |
+LL |     a: std::mem::ManuallyDrop<str>,
+   |        +++++++++++++++++++++++   +
+
 error[E0277]: the size for values of type `str` cannot be known at compilation time
   --> $DIR/eval-error.rs:2:8
    |
@@ -33,18 +45,6 @@ help: the `Box` type always has a statically known size and allocates its conten
 LL |     a: Box<str>,
    |        ++++   +
 
-error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
-  --> $DIR/eval-error.rs:2:5
-   |
-LL |     a: str,
-   |     ^^^^^^
-   |
-   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
-help: wrap the field type in `ManuallyDrop<...>`
-   |
-LL |     a: std::mem::ManuallyDrop<str>,
-   |        +++++++++++++++++++++++   +
-
 error[E0080]: the type `Foo` has an unknown layout
   --> $DIR/eval-error.rs:9:30
    |
diff --git a/tests/ui/extern/issue-36122-accessing-externed-dst.stderr b/tests/ui/extern/issue-36122-accessing-externed-dst.stderr
index 6f805aec1df..8007c3f13e5 100644
--- a/tests/ui/extern/issue-36122-accessing-externed-dst.stderr
+++ b/tests/ui/extern/issue-36122-accessing-externed-dst.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the size for values of type `[usize]` cannot be known at compilation time
-  --> $DIR/issue-36122-accessing-externed-dst.rs:3:24
+  --> $DIR/issue-36122-accessing-externed-dst.rs:3:9
    |
 LL |         static symbol: [usize];
-   |                        ^^^^^^^ doesn't have a size known at compile-time
+   |         ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[usize]`
    = note: statics and constants must have a statically known size
diff --git a/tests/ui/extern/issue-47725.rs b/tests/ui/extern/issue-47725.rs
index 012673b9159..60d0cd62347 100644
--- a/tests/ui/extern/issue-47725.rs
+++ b/tests/ui/extern/issue-47725.rs
@@ -17,7 +17,6 @@ extern "C" {
 #[link_name]
 //~^ ERROR malformed `link_name` attribute input
 //~| HELP must be of the form
-//~| NOTE expected this to be of the form `link_name = "..."
 extern "C" {
     fn bar() -> u32;
 }
diff --git a/tests/ui/extern/issue-47725.stderr b/tests/ui/extern/issue-47725.stderr
index 53d6b4927f8..4fd02a1778b 100644
--- a/tests/ui/extern/issue-47725.stderr
+++ b/tests/ui/extern/issue-47725.stderr
@@ -2,10 +2,7 @@ error[E0539]: malformed `link_name` attribute input
   --> $DIR/issue-47725.rs:17:1
    |
 LL | #[link_name]
-   | ^^^^^^^^^^^^
-   | |
-   | expected this to be of the form `link_name = "..."`
-   | help: must be of the form: `#[link_name = "name"]`
+   | ^^^^^^^^^^^^ help: must be of the form: `#[link_name = "name"]`
 
 warning: attribute should be applied to a foreign function or static
   --> $DIR/issue-47725.rs:3:1
diff --git a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr
index 7768c25bd2c..334bc63b7ee 100644
--- a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr
+++ b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr
@@ -56,6 +56,19 @@ LL | impl Fn<()> for Foo {
    |
    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
 
+error[E0053]: method `call` has an incompatible type for trait
+  --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:13:32
+   |
+LL |     extern "rust-call" fn call(self, args: ()) -> () {}
+   |                                ^^^^ expected `&Foo`, found `Foo`
+   |
+   = note: expected signature `extern "rust-call" fn(&Foo, ()) -> _`
+              found signature `extern "rust-call" fn(Foo, ()) -> ()`
+help: change the self-receiver type to match the trait
+   |
+LL |     extern "rust-call" fn call(&self, args: ()) -> () {}
+   |                                +
+
 error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
   --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:26:6
    |
@@ -85,19 +98,6 @@ LL | impl Fn<()> for Foo {
 note: required by a bound in `Fn`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
-error[E0053]: method `call` has an incompatible type for trait
-  --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:13:32
-   |
-LL |     extern "rust-call" fn call(self, args: ()) -> () {}
-   |                                ^^^^ expected `&Foo`, found `Foo`
-   |
-   = note: expected signature `extern "rust-call" fn(&Foo, ()) -> _`
-              found signature `extern "rust-call" fn(Foo, ()) -> ()`
-help: change the self-receiver type to match the trait
-   |
-LL |     extern "rust-call" fn call(&self, args: ()) -> () {}
-   |                                +
-
 error[E0183]: manual implementations of `FnOnce` are experimental
   --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:18:6
    |
@@ -144,17 +144,6 @@ LL | impl FnOnce() for Foo1 {
    |
    = help: implement the missing item: `type Output = /* Type */;`
 
-error[E0277]: expected a `FnOnce()` closure, found `Bar`
-  --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:26:20
-   |
-LL | impl FnMut<()> for Bar {
-   |                    ^^^ expected an `FnOnce()` closure, found `Bar`
-   |
-   = help: the trait `FnOnce()` is not implemented for `Bar`
-   = note: wrap the `Bar` in a closure with no arguments: `|| { /* code */ }`
-note: required by a bound in `FnMut`
-  --> $SRC_DIR/core/src/ops/function.rs:LL:COL
-
 error[E0053]: method `call_mut` has an incompatible type for trait
   --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:30:36
    |
@@ -168,6 +157,17 @@ help: change the self-receiver type to match the trait
 LL |     extern "rust-call" fn call_mut(&mut self, args: ()) -> () {}
    |                                     +++
 
+error[E0277]: expected a `FnOnce()` closure, found `Bar`
+  --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:26:20
+   |
+LL | impl FnMut<()> for Bar {
+   |                    ^^^ expected an `FnOnce()` closure, found `Bar`
+   |
+   = help: the trait `FnOnce()` is not implemented for `Bar`
+   = note: wrap the `Bar` in a closure with no arguments: `|| { /* code */ }`
+note: required by a bound in `FnMut`
+  --> $SRC_DIR/core/src/ops/function.rs:LL:COL
+
 error[E0046]: not all trait items implemented, missing: `Output`
   --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:35:1
    |
diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
index 1243ed5d8f4..02b9e2f06ee 100644
--- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
+++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
@@ -387,14 +387,6 @@ LL | #![link()]
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
-warning: attribute should be applied to a function or static
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:69:1
-   |
-LL | #![link_section = "1800"]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^ not a function or static
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-
 warning: attribute should be applied to a function definition
   --> $DIR/issue-43106-gating-of-builtin-attrs.rs:62:1
    |
@@ -411,6 +403,14 @@ LL | #![link_name = "1900"]
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
+warning: attribute should be applied to a function or static
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:69:1
+   |
+LL | #![link_section = "1800"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^ not a function or static
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+
 warning: `#[must_use]` has no effect when applied to a module
   --> $DIR/issue-43106-gating-of-builtin-attrs.rs:72:1
    |
diff --git a/tests/ui/logging-only-prints-once.rs b/tests/ui/fmt/debug-single-call.rs
index bb8c29694b5..b59a766c71a 100644
--- a/tests/ui/logging-only-prints-once.rs
+++ b/tests/ui/fmt/debug-single-call.rs
@@ -1,9 +1,12 @@
+//! Test that Debug::fmt is called exactly once during formatting.
+//!
+//! This is a regression test for PR https://github.com/rust-lang/rust/pull/10715
+
 //@ run-pass
 //@ needs-threads
 
 use std::cell::Cell;
-use std::fmt;
-use std::thread;
+use std::{fmt, thread};
 
 struct Foo(Cell<isize>);
 
diff --git a/tests/ui/fn/error-recovery-mismatch.stderr b/tests/ui/fn/error-recovery-mismatch.stderr
index c046302cb91..10dab3052be 100644
--- a/tests/ui/fn/error-recovery-mismatch.stderr
+++ b/tests/ui/fn/error-recovery-mismatch.stderr
@@ -29,7 +29,7 @@ LL |     fn fold<T>(&self, _: T, &self._) {}
    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
    = note: `#[warn(anonymous_parameters)]` on by default
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/error-recovery-mismatch.rs:11:35
    |
 LL |     fn fold<T>(&self, _: T, &self._) {}
diff --git a/tests/ui/fn/issue-39259.stderr b/tests/ui/fn/issue-39259.stderr
index a923d7b26ef..90e305ca17a 100644
--- a/tests/ui/fn/issue-39259.stderr
+++ b/tests/ui/fn/issue-39259.stderr
@@ -10,6 +10,14 @@ help: parenthesized trait syntax expands to `Fn<(u32,), Output=u32>`
 LL | impl Fn(u32) -> u32 for S {
    |      ^^^^^^^^^^^^^^
 
+error[E0050]: method `call` has 1 parameter but the declaration in trait `call` has 2
+  --> $DIR/issue-39259.rs:9:13
+   |
+LL |     fn call(&self) -> u32 {
+   |             ^^^^^ expected 2 parameters, found 1
+   |
+   = note: `call` from trait: `extern "rust-call" fn(&Self, Args) -> <Self as FnOnce<Args>>::Output`
+
 error[E0277]: expected a `FnMut(u32)` closure, found `S`
   --> $DIR/issue-39259.rs:6:25
    |
@@ -20,14 +28,6 @@ LL | impl Fn(u32) -> u32 for S {
 note: required by a bound in `Fn`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
-error[E0050]: method `call` has 1 parameter but the declaration in trait `call` has 2
-  --> $DIR/issue-39259.rs:9:13
-   |
-LL |     fn call(&self) -> u32 {
-   |             ^^^^^ expected 2 parameters, found 1
-   |
-   = note: `call` from trait: `extern "rust-call" fn(&Self, Args) -> <Self as FnOnce<Args>>::Output`
-
 error: aborting due to 3 previous errors
 
 Some errors have detailed explanations: E0050, E0229, E0277.
diff --git a/tests/ui/generic-associated-types/bugs/issue-87735.stderr b/tests/ui/generic-associated-types/bugs/issue-87735.stderr
index 1b955431363..c3f4f7a73f3 100644
--- a/tests/ui/generic-associated-types/bugs/issue-87735.stderr
+++ b/tests/ui/generic-associated-types/bugs/issue-87735.stderr
@@ -5,12 +5,13 @@ LL | impl<'b, T, U> AsRef2 for Foo<T>
    |             ^ unconstrained type parameter
 
 error[E0309]: the parameter type `U` may not live long enough
-  --> $DIR/issue-87735.rs:34:21
+  --> $DIR/issue-87735.rs:34:3
    |
 LL |   type Output<'a> = FooRef<'a, U> where Self: 'a;
-   |               --    ^^^^^^^^^^^^^ ...so that the type `U` will meet its required lifetime bounds...
-   |               |
-   |               the parameter type `U` must be valid for the lifetime `'a` as defined here...
+   |   ^^^^^^^^^^^^--^
+   |   |           |
+   |   |           the parameter type `U` must be valid for the lifetime `'a` as defined here...
+   |   ...so that the type `U` will meet its required lifetime bounds...
    |
 note: ...that is required by this bound
   --> $DIR/issue-87735.rs:23:22
diff --git a/tests/ui/generic-associated-types/bugs/issue-88526.stderr b/tests/ui/generic-associated-types/bugs/issue-88526.stderr
index 5da3e3ff64a..5e39eb7a6b9 100644
--- a/tests/ui/generic-associated-types/bugs/issue-88526.stderr
+++ b/tests/ui/generic-associated-types/bugs/issue-88526.stderr
@@ -5,12 +5,13 @@ LL | impl<'q, Q, I, F> A for TestB<Q, F>
    |             ^ unconstrained type parameter
 
 error[E0309]: the parameter type `F` may not live long enough
-  --> $DIR/issue-88526.rs:16:18
+  --> $DIR/issue-88526.rs:16:5
    |
 LL |     type I<'a> = &'a F;
-   |            --    ^^^^^ ...so that the reference type `&'a F` does not outlive the data it points at
-   |            |
-   |            the parameter type `F` must be valid for the lifetime `'a` as defined here...
+   |     ^^^^^^^--^
+   |     |      |
+   |     |      the parameter type `F` must be valid for the lifetime `'a` as defined here...
+   |     ...so that the reference type `&'a F` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
diff --git a/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.rs b/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.rs
index d00c036fbd5..81e2db182bc 100644
--- a/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.rs
+++ b/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.rs
@@ -9,6 +9,7 @@ impl <T, T1> Foo for T {
     type F<T1> = &[u8];
       //~^ ERROR: the name `T1` is already used for
       //~| ERROR: `&` without an explicit lifetime name cannot be used here
+      //~| ERROR: has 1 type parameter but its trait declaration has 0 type parameters
 }
 
 fn main() {}
diff --git a/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.stderr b/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.stderr
index cb2b9f32bfe..42aa83c8f43 100644
--- a/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.stderr
+++ b/tests/ui/generic-associated-types/gat-trait-path-generic-type-arg.stderr
@@ -13,13 +13,22 @@ error[E0637]: `&` without an explicit lifetime name cannot be used here
 LL |     type F<T1> = &[u8];
    |                  ^ explicit lifetime name needed here
 
+error[E0049]: associated type `F` has 1 type parameter but its trait declaration has 0 type parameters
+  --> $DIR/gat-trait-path-generic-type-arg.rs:9:12
+   |
+LL |     type F<'a>;
+   |            -- expected 0 type parameters
+...
+LL |     type F<T1> = &[u8];
+   |            ^^ found 1 type parameter
+
 error[E0207]: the type parameter `T1` is not constrained by the impl trait, self type, or predicates
   --> $DIR/gat-trait-path-generic-type-arg.rs:7:10
    |
 LL | impl <T, T1> Foo for T {
    |          ^^ unconstrained type parameter
 
-error: aborting due to 3 previous errors
+error: aborting due to 4 previous errors
 
-Some errors have detailed explanations: E0207, E0403, E0637.
-For more information about an error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0049, E0207, E0403, E0637.
+For more information about an error, try `rustc --explain E0049`.
diff --git a/tests/ui/generic-associated-types/issue-84931.stderr b/tests/ui/generic-associated-types/issue-84931.stderr
index 71d112277a3..01819481108 100644
--- a/tests/ui/generic-associated-types/issue-84931.stderr
+++ b/tests/ui/generic-associated-types/issue-84931.stderr
@@ -18,12 +18,13 @@ LL |     type Item<'a> = &'a mut T where Self: 'a;
    |                               ++++++++++++++
 
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/issue-84931.rs:14:21
+  --> $DIR/issue-84931.rs:14:5
    |
 LL |     type Item<'a> = &'a mut T;
-   |               --    ^^^^^^^^^ ...so that the reference type `&'a mut T` does not outlive the data it points at
-   |               |
-   |               the parameter type `T` must be valid for the lifetime `'a` as defined here...
+   |     ^^^^^^^^^^--^
+   |     |         |
+   |     |         the parameter type `T` must be valid for the lifetime `'a` as defined here...
+   |     ...so that the reference type `&'a mut T` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
diff --git a/tests/ui/generic-associated-types/static-lifetime-tip-with-default-type.stderr b/tests/ui/generic-associated-types/static-lifetime-tip-with-default-type.stderr
index 7d985a9013f..786aa00350c 100644
--- a/tests/ui/generic-associated-types/static-lifetime-tip-with-default-type.stderr
+++ b/tests/ui/generic-associated-types/static-lifetime-tip-with-default-type.stderr
@@ -82,6 +82,14 @@ help: consider adding an explicit lifetime bound
 LL | struct Far<T: 'static
    |             +++++++++
 
+error[E0392]: lifetime parameter `'a` is never used
+  --> $DIR/static-lifetime-tip-with-default-type.rs:22:10
+   |
+LL | struct S<'a, K: 'a = i32>(&'static K);
+   |          ^^ unused lifetime parameter
+   |
+   = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
+
 error[E0310]: the parameter type `K` may not live long enough
   --> $DIR/static-lifetime-tip-with-default-type.rs:22:27
    |
@@ -96,14 +104,6 @@ help: consider adding an explicit lifetime bound
 LL | struct S<'a, K: 'a + 'static = i32>(&'static K);
    |                    +++++++++
 
-error[E0392]: lifetime parameter `'a` is never used
-  --> $DIR/static-lifetime-tip-with-default-type.rs:22:10
-   |
-LL | struct S<'a, K: 'a = i32>(&'static K);
-   |          ^^ unused lifetime parameter
-   |
-   = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
-
 error: aborting due to 8 previous errors
 
 Some errors have detailed explanations: E0310, E0392.
diff --git a/tests/ui/generic-const-items/evaluatable-bounds.stderr b/tests/ui/generic-const-items/evaluatable-bounds.stderr
index ca26d633658..8bc4a3d236f 100644
--- a/tests/ui/generic-const-items/evaluatable-bounds.stderr
+++ b/tests/ui/generic-const-items/evaluatable-bounds.stderr
@@ -2,7 +2,7 @@ error: unconstrained generic constant
   --> $DIR/evaluatable-bounds.rs:14:5
    |
 LL |     const ARRAY: [i32; Self::LEN];
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 help: try adding a `where` bound
    |
diff --git a/tests/ui/generics/newtype-with-generics.rs b/tests/ui/generics/newtype-with-generics.rs
new file mode 100644
index 00000000000..c5e200e4bc4
--- /dev/null
+++ b/tests/ui/generics/newtype-with-generics.rs
@@ -0,0 +1,32 @@
+//! Test newtype pattern with generic parameters.
+
+//@ run-pass
+
+#[derive(Clone)]
+struct MyVec<T>(Vec<T>);
+
+fn extract_inner_vec<T: Clone>(wrapper: MyVec<T>) -> Vec<T> {
+    let MyVec(inner_vec) = wrapper;
+    inner_vec.clone()
+}
+
+fn get_first_element<T>(wrapper: MyVec<T>) -> T {
+    let MyVec(inner_vec) = wrapper;
+    inner_vec.into_iter().next().unwrap()
+}
+
+pub fn main() {
+    let my_vec = MyVec(vec![1, 2, 3]);
+    let cloned_vec = my_vec.clone();
+
+    // Test extracting inner vector
+    let extracted = extract_inner_vec(cloned_vec);
+    assert_eq!(extracted[1], 2);
+
+    // Test getting first element
+    assert_eq!(get_first_element(my_vec.clone()), 1);
+
+    // Test direct destructuring
+    let MyVec(inner) = my_vec;
+    assert_eq!(inner[2], 3);
+}
diff --git a/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-89118.stderr b/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-89118.stderr
index 7fe803550bd..5ded3a5e76c 100644
--- a/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-89118.stderr
+++ b/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-89118.stderr
@@ -53,10 +53,10 @@ LL |     Ctx<()>: for<'a> BufferUdpStateContext<&'a ()>;
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `EthernetWorker`
 
 error[E0277]: the trait bound `for<'a> &'a (): BufferMut` is not satisfied
-  --> $DIR/issue-89118.rs:22:20
+  --> $DIR/issue-89118.rs:22:5
    |
 LL |     type Handler = Ctx<C::Dispatcher>;
-   |                    ^^^^^^^^^^^^^^^^^^ the trait `for<'a> BufferMut` is not implemented for `&'a ()`
+   |     ^^^^^^^^^^^^ the trait `for<'a> BufferMut` is not implemented for `&'a ()`
    |
 help: this trait has no implementations, consider adding one
   --> $DIR/issue-89118.rs:1:1
diff --git a/tests/ui/new-impl-syntax.rs b/tests/ui/impl-trait/basic-trait-impl.rs
index 124d604e6a8..2706c9c1798 100644
--- a/tests/ui/new-impl-syntax.rs
+++ b/tests/ui/impl-trait/basic-trait-impl.rs
@@ -1,10 +1,12 @@
+//! Test basic trait implementation syntax for both simple and generic types.
+
 //@ run-pass
 
 use std::fmt;
 
 struct Thingy {
     x: isize,
-    y: isize
+    y: isize,
 }
 
 impl fmt::Debug for Thingy {
@@ -14,10 +16,10 @@ impl fmt::Debug for Thingy {
 }
 
 struct PolymorphicThingy<T> {
-    x: T
+    x: T,
 }
 
-impl<T:fmt::Debug> fmt::Debug for PolymorphicThingy<T> {
+impl<T: fmt::Debug> fmt::Debug for PolymorphicThingy<T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "{:?}", self.x)
     }
diff --git a/tests/ui/impl-trait/in-trait/false-positive-predicate-entailment-error.current.stderr b/tests/ui/impl-trait/in-trait/false-positive-predicate-entailment-error.current.stderr
index b6e7e02f331..2351b18fdfc 100644
--- a/tests/ui/impl-trait/in-trait/false-positive-predicate-entailment-error.current.stderr
+++ b/tests/ui/impl-trait/in-trait/false-positive-predicate-entailment-error.current.stderr
@@ -19,11 +19,14 @@ help: consider further restricting type parameter `F` with trait `MyFn`
 LL |         F: Callback<Self::CallbackArg> + MyFn<i32>,
    |                                        +++++++++++
 
-error[E0277]: the trait bound `F: Callback<i32>` is not satisfied
-  --> $DIR/false-positive-predicate-entailment-error.rs:42:12
+error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
+  --> $DIR/false-positive-predicate-entailment-error.rs:36:5
    |
-LL |         F: Callback<Self::CallbackArg>,
-   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MyFn<i32>` is not implemented for `F`
+LL | /     fn autobatch<F>(self) -> impl Trait
+...  |
+LL | |     where
+LL | |         F: Callback<Self::CallbackArg>,
+   | |_______________________________________^ the trait `MyFn<i32>` is not implemented for `F`
    |
 note: required for `F` to implement `Callback<i32>`
   --> $DIR/false-positive-predicate-entailment-error.rs:14:21
@@ -32,27 +35,17 @@ LL | impl<A, F: MyFn<A>> Callback<A> for F {
    |            -------  ^^^^^^^^^^^     ^
    |            |
    |            unsatisfied trait bound introduced here
-note: the requirement `F: Callback<i32>` appears on the `impl`'s method `autobatch` but not on the corresponding trait's method
-  --> $DIR/false-positive-predicate-entailment-error.rs:25:8
-   |
-LL | trait ChannelSender {
-   |       ------------- in this trait
-...
-LL |     fn autobatch<F>(self) -> impl Trait
-   |        ^^^^^^^^^ this trait's method doesn't have the requirement `F: Callback<i32>`
+   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: consider further restricting type parameter `F` with trait `MyFn`
    |
 LL |         F: Callback<Self::CallbackArg> + MyFn<i32>,
    |                                        +++++++++++
 
-error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
-  --> $DIR/false-positive-predicate-entailment-error.rs:36:5
+error[E0277]: the trait bound `F: Callback<i32>` is not satisfied
+  --> $DIR/false-positive-predicate-entailment-error.rs:42:12
    |
-LL | /     fn autobatch<F>(self) -> impl Trait
-...  |
-LL | |     where
-LL | |         F: Callback<Self::CallbackArg>,
-   | |_______________________________________^ the trait `MyFn<i32>` is not implemented for `F`
+LL |         F: Callback<Self::CallbackArg>,
+   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MyFn<i32>` is not implemented for `F`
    |
 note: required for `F` to implement `Callback<i32>`
   --> $DIR/false-positive-predicate-entailment-error.rs:14:21
@@ -61,7 +54,14 @@ LL | impl<A, F: MyFn<A>> Callback<A> for F {
    |            -------  ^^^^^^^^^^^     ^
    |            |
    |            unsatisfied trait bound introduced here
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
+note: the requirement `F: Callback<i32>` appears on the `impl`'s method `autobatch` but not on the corresponding trait's method
+  --> $DIR/false-positive-predicate-entailment-error.rs:25:8
+   |
+LL | trait ChannelSender {
+   |       ------------- in this trait
+...
+LL |     fn autobatch<F>(self) -> impl Trait
+   |        ^^^^^^^^^ this trait's method doesn't have the requirement `F: Callback<i32>`
 help: consider further restricting type parameter `F` with trait `MyFn`
    |
 LL |         F: Callback<Self::CallbackArg> + MyFn<i32>,
diff --git a/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.current.stderr b/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.current.stderr
index 5d651245746..ff3a726477e 100644
--- a/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.current.stderr
+++ b/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.current.stderr
@@ -46,11 +46,11 @@ note: ...which requires type-checking `<impl at $DIR/method-compatability-via-le
 LL |     fn foo(b: bool) -> impl Sized {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: ...which again requires computing type of `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo::{anon_assoc#0}`, completing the cycle
-note: cycle used when checking that `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>` is well-formed
-  --> $DIR/method-compatability-via-leakage-cycle.rs:17:1
+note: cycle used when checking assoc item `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo` is compatible with trait definition
+  --> $DIR/method-compatability-via-leakage-cycle.rs:21:5
    |
-LL | impl Trait for u32 {
-   | ^^^^^^^^^^^^^^^^^^
+LL |     fn foo(b: bool) -> impl Sized {
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error: aborting due to 1 previous error
diff --git a/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.next.stderr b/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.next.stderr
index 4bbba62bd71..f0a20367a4a 100644
--- a/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.next.stderr
+++ b/tests/ui/impl-trait/in-trait/method-compatability-via-leakage-cycle.next.stderr
@@ -50,11 +50,11 @@ note: ...which requires type-checking `<impl at $DIR/method-compatability-via-le
 LL |     fn foo(b: bool) -> impl Sized {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: ...which again requires computing type of `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo::{anon_assoc#0}`, completing the cycle
-note: cycle used when checking that `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>` is well-formed
-  --> $DIR/method-compatability-via-leakage-cycle.rs:17:1
+note: cycle used when checking assoc item `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo` is compatible with trait definition
+  --> $DIR/method-compatability-via-leakage-cycle.rs:21:5
    |
-LL | impl Trait for u32 {
-   | ^^^^^^^^^^^^^^^^^^
+LL |     fn foo(b: bool) -> impl Sized {
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error[E0391]: cycle detected when computing type of `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo::{anon_assoc#0}`
@@ -109,11 +109,11 @@ note: ...which requires type-checking `<impl at $DIR/method-compatability-via-le
 LL |     fn foo(b: bool) -> impl Sized {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: ...which again requires computing type of `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo::{anon_assoc#0}`, completing the cycle
-note: cycle used when checking that `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>` is well-formed
-  --> $DIR/method-compatability-via-leakage-cycle.rs:17:1
+note: cycle used when checking assoc item `<impl at $DIR/method-compatability-via-leakage-cycle.rs:17:1: 17:19>::foo` is compatible with trait definition
+  --> $DIR/method-compatability-via-leakage-cycle.rs:21:5
    |
-LL | impl Trait for u32 {
-   | ^^^^^^^^^^^^^^^^^^
+LL |     fn foo(b: bool) -> impl Sized {
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
diff --git a/tests/ui/impl-trait/in-trait/refine-resolution-errors.rs b/tests/ui/impl-trait/in-trait/refine-resolution-errors.rs
index 894f592d9e2..8433fb72b5e 100644
--- a/tests/ui/impl-trait/in-trait/refine-resolution-errors.rs
+++ b/tests/ui/impl-trait/in-trait/refine-resolution-errors.rs
@@ -9,6 +9,7 @@ pub trait Mirror {
 impl<T: ?Sized> Mirror for () {
     //~^ ERROR the type parameter `T` is not constrained
     type Assoc = T;
+    //~^ ERROR the size for values of type `T` cannot be known at compilation time
 }
 
 pub trait First {
diff --git a/tests/ui/impl-trait/in-trait/refine-resolution-errors.stderr b/tests/ui/impl-trait/in-trait/refine-resolution-errors.stderr
index 10ebad2a7d5..fd53c9fef44 100644
--- a/tests/ui/impl-trait/in-trait/refine-resolution-errors.stderr
+++ b/tests/ui/impl-trait/in-trait/refine-resolution-errors.stderr
@@ -4,6 +4,31 @@ error[E0207]: the type parameter `T` is not constrained by the impl trait, self
 LL | impl<T: ?Sized> Mirror for () {
    |      ^ unconstrained type parameter
 
-error: aborting due to 1 previous error
+error[E0277]: the size for values of type `T` cannot be known at compilation time
+  --> $DIR/refine-resolution-errors.rs:11:18
+   |
+LL | impl<T: ?Sized> Mirror for () {
+   |      - this type parameter needs to be `Sized`
+LL |
+LL |     type Assoc = T;
+   |                  ^ doesn't have a size known at compile-time
+   |
+note: required by a bound in `Mirror::Assoc`
+  --> $DIR/refine-resolution-errors.rs:7:5
+   |
+LL |     type Assoc;
+   |     ^^^^^^^^^^^ required by this bound in `Mirror::Assoc`
+help: consider removing the `?Sized` bound to make the type parameter `Sized`
+   |
+LL - impl<T: ?Sized> Mirror for () {
+LL + impl<T> Mirror for () {
+   |
+help: consider relaxing the implicit `Sized` restriction
+   |
+LL |     type Assoc: ?Sized;
+   |               ++++++++
+
+error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0207, E0277.
+For more information about an error, try `rustc --explain E0207`.
diff --git a/tests/ui/impl-trait/in-trait/span-bug-issue-121457.stderr b/tests/ui/impl-trait/in-trait/span-bug-issue-121457.stderr
index eaa320455bb..f95f6fab413 100644
--- a/tests/ui/impl-trait/in-trait/span-bug-issue-121457.stderr
+++ b/tests/ui/impl-trait/in-trait/span-bug-issue-121457.stderr
@@ -1,3 +1,15 @@
+error[E0195]: lifetime parameters or bounds on associated type `Item` do not match the trait declaration
+  --> $DIR/span-bug-issue-121457.rs:10:14
+   |
+LL |     type Item<'a>
+   |              ---- lifetimes in impl do not match this associated type in trait
+LL |     where
+LL |         Self: 'a;
+   |               -- this bound might be missing in the impl
+...
+LL |     type Item = u32;
+   |              ^ lifetimes do not match associated type in trait
+
 error[E0582]: binding for associated type `Item` references lifetime `'missing`, which does not appear in the trait input types
   --> $DIR/span-bug-issue-121457.rs:13:51
    |
@@ -12,18 +24,6 @@ LL |     fn iter(&self) -> impl for<'missing> Iterator<Item = Self::Item<'missin
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
-error[E0195]: lifetime parameters or bounds on associated type `Item` do not match the trait declaration
-  --> $DIR/span-bug-issue-121457.rs:10:14
-   |
-LL |     type Item<'a>
-   |              ---- lifetimes in impl do not match this associated type in trait
-LL |     where
-LL |         Self: 'a;
-   |               -- this bound might be missing in the impl
-...
-LL |     type Item = u32;
-   |              ^ lifetimes do not match associated type in trait
-
 error[E0277]: `()` is not an iterator
   --> $DIR/span-bug-issue-121457.rs:13:23
    |
diff --git a/tests/ui/impl-trait/in-trait/unconstrained-lt.rs b/tests/ui/impl-trait/in-trait/unconstrained-lt.rs
index ff3753de5a2..12e0a4263f5 100644
--- a/tests/ui/impl-trait/in-trait/unconstrained-lt.rs
+++ b/tests/ui/impl-trait/in-trait/unconstrained-lt.rs
@@ -6,6 +6,7 @@ impl<'a, T> Foo for T {
     //~^ ERROR the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
 
     fn test() -> &'a () {
+        //~^ WARN: does not match trait method signature
         &()
     }
 }
diff --git a/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr b/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr
index 4c5a42c0b4b..27340c5b362 100644
--- a/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr
+++ b/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr
@@ -1,9 +1,27 @@
+warning: impl trait in impl method signature does not match trait method signature
+  --> $DIR/unconstrained-lt.rs:8:18
+   |
+LL |     fn test() -> impl Sized;
+   |                  ---------- return type from trait method defined here
+...
+LL |     fn test() -> &'a () {
+   |                  ^^^^^^
+   |
+   = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
+   = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
+   = note: `#[warn(refining_impl_trait_internal)]` on by default
+help: replace the return type so that it matches the trait
+   |
+LL -     fn test() -> &'a () {
+LL +     fn test() -> impl Sized {
+   |
+
 error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
   --> $DIR/unconstrained-lt.rs:5:6
    |
 LL | impl<'a, T> Foo for T {
    |      ^^ unconstrained lifetime parameter
 
-error: aborting due to 1 previous error
+error: aborting due to 1 previous error; 1 warning emitted
 
 For more information about this error, try `rustc --explain E0207`.
diff --git a/tests/ui/implied-bounds/impl-header-unnormalized-types.stderr b/tests/ui/implied-bounds/impl-header-unnormalized-types.stderr
index 07cb0aecda8..dcb68fbf2cd 100644
--- a/tests/ui/implied-bounds/impl-header-unnormalized-types.stderr
+++ b/tests/ui/implied-bounds/impl-header-unnormalized-types.stderr
@@ -1,8 +1,8 @@
 error[E0491]: in type `&'a &'b ()`, reference has a longer lifetime than the data it references
-  --> $DIR/impl-header-unnormalized-types.rs:15:18
+  --> $DIR/impl-header-unnormalized-types.rs:15:5
    |
 LL |     type Assoc = &'a &'b ();
-   |                  ^^^^^^^^^^
+   |     ^^^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/impl-header-unnormalized-types.rs:14:6
diff --git a/tests/ui/integral-indexing.rs b/tests/ui/indexing/indexing-integral-types.rs
index e20553af8a2..a91696a6fd5 100644
--- a/tests/ui/integral-indexing.rs
+++ b/tests/ui/indexing/indexing-integral-types.rs
@@ -1,16 +1,20 @@
+//! Test that only usize can be used for indexing arrays and slices.
+
 pub fn main() {
     let v: Vec<isize> = vec![0, 1, 2, 3, 4, 5];
     let s: String = "abcdef".to_string();
+
+    // Valid indexing with usize
     v[3_usize];
     v[3];
-    v[3u8];  //~ ERROR the type `[isize]` cannot be indexed by `u8`
-    v[3i8];  //~ ERROR the type `[isize]` cannot be indexed by `i8`
+    v[3u8]; //~ ERROR the type `[isize]` cannot be indexed by `u8`
+    v[3i8]; //~ ERROR the type `[isize]` cannot be indexed by `i8`
     v[3u32]; //~ ERROR the type `[isize]` cannot be indexed by `u32`
     v[3i32]; //~ ERROR the type `[isize]` cannot be indexed by `i32`
     s.as_bytes()[3_usize];
     s.as_bytes()[3];
-    s.as_bytes()[3u8];  //~ ERROR the type `[u8]` cannot be indexed by `u8`
-    s.as_bytes()[3i8];  //~ ERROR the type `[u8]` cannot be indexed by `i8`
+    s.as_bytes()[3u8]; //~ ERROR the type `[u8]` cannot be indexed by `u8`
+    s.as_bytes()[3i8]; //~ ERROR the type `[u8]` cannot be indexed by `i8`
     s.as_bytes()[3u32]; //~ ERROR the type `[u8]` cannot be indexed by `u32`
     s.as_bytes()[3i32]; //~ ERROR the type `[u8]` cannot be indexed by `i32`
 }
diff --git a/tests/ui/integral-indexing.stderr b/tests/ui/indexing/indexing-integral-types.stderr
index 26253e078cb..b63991ec2c4 100644
--- a/tests/ui/integral-indexing.stderr
+++ b/tests/ui/indexing/indexing-integral-types.stderr
@@ -1,5 +1,5 @@
 error[E0277]: the type `[isize]` cannot be indexed by `u8`
-  --> $DIR/integral-indexing.rs:6:7
+  --> $DIR/indexing-integral-types.rs:10:7
    |
 LL |     v[3u8];
    |       ^^^ slice indices are of type `usize` or ranges of `usize`
@@ -11,7 +11,7 @@ LL |     v[3u8];
    = note: required for `Vec<isize>` to implement `Index<u8>`
 
 error[E0277]: the type `[isize]` cannot be indexed by `i8`
-  --> $DIR/integral-indexing.rs:7:7
+  --> $DIR/indexing-integral-types.rs:11:7
    |
 LL |     v[3i8];
    |       ^^^ slice indices are of type `usize` or ranges of `usize`
@@ -23,7 +23,7 @@ LL |     v[3i8];
    = note: required for `Vec<isize>` to implement `Index<i8>`
 
 error[E0277]: the type `[isize]` cannot be indexed by `u32`
-  --> $DIR/integral-indexing.rs:8:7
+  --> $DIR/indexing-integral-types.rs:12:7
    |
 LL |     v[3u32];
    |       ^^^^ slice indices are of type `usize` or ranges of `usize`
@@ -35,7 +35,7 @@ LL |     v[3u32];
    = note: required for `Vec<isize>` to implement `Index<u32>`
 
 error[E0277]: the type `[isize]` cannot be indexed by `i32`
-  --> $DIR/integral-indexing.rs:9:7
+  --> $DIR/indexing-integral-types.rs:13:7
    |
 LL |     v[3i32];
    |       ^^^^ slice indices are of type `usize` or ranges of `usize`
@@ -47,7 +47,7 @@ LL |     v[3i32];
    = note: required for `Vec<isize>` to implement `Index<i32>`
 
 error[E0277]: the type `[u8]` cannot be indexed by `u8`
-  --> $DIR/integral-indexing.rs:12:18
+  --> $DIR/indexing-integral-types.rs:16:18
    |
 LL |     s.as_bytes()[3u8];
    |                  ^^^ slice indices are of type `usize` or ranges of `usize`
@@ -59,7 +59,7 @@ LL |     s.as_bytes()[3u8];
    = note: required for `[u8]` to implement `Index<u8>`
 
 error[E0277]: the type `[u8]` cannot be indexed by `i8`
-  --> $DIR/integral-indexing.rs:13:18
+  --> $DIR/indexing-integral-types.rs:17:18
    |
 LL |     s.as_bytes()[3i8];
    |                  ^^^ slice indices are of type `usize` or ranges of `usize`
@@ -71,7 +71,7 @@ LL |     s.as_bytes()[3i8];
    = note: required for `[u8]` to implement `Index<i8>`
 
 error[E0277]: the type `[u8]` cannot be indexed by `u32`
-  --> $DIR/integral-indexing.rs:14:18
+  --> $DIR/indexing-integral-types.rs:18:18
    |
 LL |     s.as_bytes()[3u32];
    |                  ^^^^ slice indices are of type `usize` or ranges of `usize`
@@ -83,7 +83,7 @@ LL |     s.as_bytes()[3u32];
    = note: required for `[u8]` to implement `Index<u32>`
 
 error[E0277]: the type `[u8]` cannot be indexed by `i32`
-  --> $DIR/integral-indexing.rs:15:18
+  --> $DIR/indexing-integral-types.rs:19:18
    |
 LL |     s.as_bytes()[3i32];
    |                  ^^^^ slice indices are of type `usize` or ranges of `usize`
diff --git a/tests/ui/infinite/infinite-trait-alias-recursion.stderr b/tests/ui/infinite/infinite-trait-alias-recursion.stderr
index 5b0cbd58231..fa51914415d 100644
--- a/tests/ui/infinite/infinite-trait-alias-recursion.stderr
+++ b/tests/ui/infinite/infinite-trait-alias-recursion.stderr
@@ -20,7 +20,7 @@ note: cycle used when checking that `T1` is well-formed
   --> $DIR/infinite-trait-alias-recursion.rs:3:1
    |
 LL | trait T1 = T2;
-   | ^^^^^^^^^^^^^^
+   | ^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error: aborting due to 1 previous error
diff --git a/tests/ui/infinite/infinite-type-alias-mutual-recursion.feature.stderr b/tests/ui/infinite/infinite-type-alias-mutual-recursion.feature.stderr
index 3dec2c3084f..e586248f5d2 100644
--- a/tests/ui/infinite/infinite-type-alias-mutual-recursion.feature.stderr
+++ b/tests/ui/infinite/infinite-type-alias-mutual-recursion.feature.stderr
@@ -1,24 +1,24 @@
 error[E0275]: overflow normalizing the type alias `X2`
-  --> $DIR/infinite-type-alias-mutual-recursion.rs:6:11
+  --> $DIR/infinite-type-alias-mutual-recursion.rs:6:1
    |
 LL | type X1 = X2;
-   |           ^^
+   | ^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
 error[E0275]: overflow normalizing the type alias `X3`
-  --> $DIR/infinite-type-alias-mutual-recursion.rs:9:11
+  --> $DIR/infinite-type-alias-mutual-recursion.rs:9:1
    |
 LL | type X2 = X3;
-   |           ^^
+   | ^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
 error[E0275]: overflow normalizing the type alias `X1`
-  --> $DIR/infinite-type-alias-mutual-recursion.rs:11:11
+  --> $DIR/infinite-type-alias-mutual-recursion.rs:11:1
    |
 LL | type X3 = X1;
-   |           ^^
+   | ^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
diff --git a/tests/ui/infinite/infinite-vec-type-recursion.feature.stderr b/tests/ui/infinite/infinite-vec-type-recursion.feature.stderr
index 5c8d50341c1..3e07a46ea26 100644
--- a/tests/ui/infinite/infinite-vec-type-recursion.feature.stderr
+++ b/tests/ui/infinite/infinite-vec-type-recursion.feature.stderr
@@ -1,8 +1,8 @@
 error[E0275]: overflow normalizing the type alias `X`
-  --> $DIR/infinite-vec-type-recursion.rs:6:10
+  --> $DIR/infinite-vec-type-recursion.rs:6:1
    |
 LL | type X = Vec<X>;
-   |          ^^^^^^
+   | ^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
diff --git a/tests/ui/inner-attrs-on-impl.rs b/tests/ui/inner-attrs-on-impl.rs
deleted file mode 100644
index 1dce1cdd261..00000000000
--- a/tests/ui/inner-attrs-on-impl.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-//@ run-pass
-
-struct Foo;
-
-impl Foo {
-    #![cfg(false)]
-
-    fn method(&self) -> bool { false }
-}
-
-impl Foo {
-    #![cfg(not(FALSE))]
-
-    // check that we don't eat attributes too eagerly.
-    #[cfg(false)]
-    fn method(&self) -> bool { false }
-
-    fn method(&self) -> bool { true }
-}
-
-
-pub fn main() {
-    assert!(Foo.method());
-}
diff --git a/tests/ui/inner-module.rs b/tests/ui/inner-module.rs
deleted file mode 100644
index 111f2cab857..00000000000
--- a/tests/ui/inner-module.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-//@ run-pass
-
-mod inner {
-    pub mod inner2 {
-        pub fn hello() { println!("hello, modular world"); }
-    }
-    pub fn hello() { inner2::hello(); }
-}
-
-pub fn main() { inner::hello(); inner::inner2::hello(); }
diff --git a/tests/ui/inner-static-type-parameter.rs b/tests/ui/inner-static-type-parameter.rs
deleted file mode 100644
index a1994e7529c..00000000000
--- a/tests/ui/inner-static-type-parameter.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-// see #9186
-
-enum Bar<T> { What } //~ ERROR parameter `T` is never used
-
-fn foo<T>() {
-    static a: Bar<T> = Bar::What;
-//~^ ERROR can't use generic parameters from outer item
-}
-
-fn main() {
-}
diff --git a/tests/ui/invalid/invalid_rustc_layout_scalar_valid_range.stderr b/tests/ui/invalid/invalid_rustc_layout_scalar_valid_range.stderr
index 7879e7358c0..8b9ad78db37 100644
--- a/tests/ui/invalid/invalid_rustc_layout_scalar_valid_range.stderr
+++ b/tests/ui/invalid/invalid_rustc_layout_scalar_valid_range.stderr
@@ -1,20 +1,38 @@
-error: expected exactly one integer literal argument
+error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input
   --> $DIR/invalid_rustc_layout_scalar_valid_range.rs:3:1
    |
 LL | #[rustc_layout_scalar_valid_range_start(u32::MAX)]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^--------^^
+   | |                                       |
+   | |                                       expected an integer literal here
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]`
 
-error: expected exactly one integer literal argument
+error[E0805]: malformed `rustc_layout_scalar_valid_range_end` attribute input
   --> $DIR/invalid_rustc_layout_scalar_valid_range.rs:6:1
    |
 LL | #[rustc_layout_scalar_valid_range_end(1, 2)]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^------^
+   | |                                    |
+   | |                                    expected a single argument here
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_end(end)]`
 
-error: expected exactly one integer literal argument
+error[E0539]: malformed `rustc_layout_scalar_valid_range_end` attribute input
   --> $DIR/invalid_rustc_layout_scalar_valid_range.rs:9:1
    |
 LL | #[rustc_layout_scalar_valid_range_end(a = "a")]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------^^
+   | |                                     |
+   | |                                     expected an integer literal here
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_end(end)]`
+
+error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input
+  --> $DIR/invalid_rustc_layout_scalar_valid_range.rs:18:1
+   |
+LL | #[rustc_layout_scalar_valid_range_start(rustc_layout_scalar_valid_range_start)]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------------------------^^
+   | |                                       |
+   | |                                       expected an integer literal here
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]`
 
 error: attribute should be applied to a struct
   --> $DIR/invalid_rustc_layout_scalar_valid_range.rs:12:1
@@ -27,11 +45,7 @@ LL | |     Y = 14,
 LL | | }
    | |_- not a struct
 
-error: expected exactly one integer literal argument
-  --> $DIR/invalid_rustc_layout_scalar_valid_range.rs:18:1
-   |
-LL | #[rustc_layout_scalar_valid_range_start(rustc_layout_scalar_valid_range_start)]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
 error: aborting due to 5 previous errors
 
+Some errors have detailed explanations: E0539, E0805.
+For more information about an error, try `rustc --explain E0539`.
diff --git a/tests/ui/issues/issue-54410.stderr b/tests/ui/issues/issue-54410.stderr
index 2cd5a2a49ef..cb68ada7e13 100644
--- a/tests/ui/issues/issue-54410.stderr
+++ b/tests/ui/issues/issue-54410.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the size for values of type `[i8]` cannot be known at compilation time
-  --> $DIR/issue-54410.rs:2:28
+  --> $DIR/issue-54410.rs:2:5
    |
 LL |     pub static mut symbol: [i8];
-   |                            ^^^^ doesn't have a size known at compile-time
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[i8]`
    = note: statics and constants must have a statically known size
diff --git a/tests/ui/issues/issue-7364.stderr b/tests/ui/issues/issue-7364.stderr
index a47a90c90ce..e07f88b806c 100644
--- a/tests/ui/issues/issue-7364.stderr
+++ b/tests/ui/issues/issue-7364.stderr
@@ -1,8 +1,8 @@
 error[E0277]: `RefCell<isize>` cannot be shared between threads safely
-  --> $DIR/issue-7364.rs:4:15
+  --> $DIR/issue-7364.rs:4:1
    |
 LL | static boxed: Box<RefCell<isize>> = Box::new(RefCell::new(0));
-   |               ^^^^^^^^^^^^^^^^^^^ `RefCell<isize>` cannot be shared between threads safely
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `RefCell<isize>` cannot be shared between threads safely
    |
    = help: the trait `Sync` is not implemented for `RefCell<isize>`
    = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
diff --git a/tests/ui/layout/ice-non-last-unsized-field-issue-121473.stderr b/tests/ui/layout/ice-non-last-unsized-field-issue-121473.stderr
index 626be7ac283..b0ea655fc67 100644
--- a/tests/ui/layout/ice-non-last-unsized-field-issue-121473.stderr
+++ b/tests/ui/layout/ice-non-last-unsized-field-issue-121473.stderr
@@ -70,6 +70,18 @@ help: the `Box` type always has a statically known size and allocates its conten
 LL |         field2: Box<str>, // Unsized
    |                 ++++   +
 
+error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
+  --> $DIR/ice-non-last-unsized-field-issue-121473.rs:46:5
+   |
+LL |     field2: str, // Unsized
+   |     ^^^^^^^^^^^
+   |
+   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
+help: wrap the field type in `ManuallyDrop<...>`
+   |
+LL |     field2: std::mem::ManuallyDrop<str>, // Unsized
+   |             +++++++++++++++++++++++   +
+
 error[E0277]: the size for values of type `str` cannot be known at compilation time
   --> $DIR/ice-non-last-unsized-field-issue-121473.rs:46:13
    |
@@ -88,18 +100,6 @@ help: the `Box` type always has a statically known size and allocates its conten
 LL |     field2: Box<str>, // Unsized
    |             ++++   +
 
-error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
-  --> $DIR/ice-non-last-unsized-field-issue-121473.rs:46:5
-   |
-LL |     field2: str, // Unsized
-   |     ^^^^^^^^^^^
-   |
-   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
-help: wrap the field type in `ManuallyDrop<...>`
-   |
-LL |     field2: std::mem::ManuallyDrop<str>, // Unsized
-   |             +++++++++++++++++++++++   +
-
 error: aborting due to 6 previous errors
 
 Some errors have detailed explanations: E0277, E0740.
diff --git a/tests/ui/layout/rust-call-abi-not-a-tuple-ice-81974.stderr b/tests/ui/layout/rust-call-abi-not-a-tuple-ice-81974.stderr
index 32a564e466b..75ee936d9e8 100644
--- a/tests/ui/layout/rust-call-abi-not-a-tuple-ice-81974.stderr
+++ b/tests/ui/layout/rust-call-abi-not-a-tuple-ice-81974.stderr
@@ -1,4 +1,17 @@
 error[E0059]: type parameter to bare `FnOnce` trait must be a tuple
+  --> $DIR/rust-call-abi-not-a-tuple-ice-81974.rs:31:5
+   |
+LL |     extern "rust-call" fn call_once(mut self, a: A) -> Self::Output {
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `A`
+   |
+note: required by a bound in `FnOnce`
+  --> $SRC_DIR/core/src/ops/function.rs:LL:COL
+help: consider further restricting type parameter `A` with unstable trait `Tuple`
+   |
+LL |     A: Eq + Hash + Clone + std::marker::Tuple,
+   |                          ++++++++++++++++++++
+
+error[E0059]: type parameter to bare `FnOnce` trait must be a tuple
   --> $DIR/rust-call-abi-not-a-tuple-ice-81974.rs:24:12
    |
 LL | impl<A, B> FnOnce<A> for CachedFun<A, B>
@@ -12,9 +25,9 @@ LL |     A: Eq + Hash + Clone + std::marker::Tuple,
    |                          ++++++++++++++++++++
 
 error[E0059]: type parameter to bare `FnOnce` trait must be a tuple
-  --> $DIR/rust-call-abi-not-a-tuple-ice-81974.rs:31:5
+  --> $DIR/rust-call-abi-not-a-tuple-ice-81974.rs:45:5
    |
-LL |     extern "rust-call" fn call_once(mut self, a: A) -> Self::Output {
+LL |     extern "rust-call" fn call_mut(&mut self, a: A) -> Self::Output {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `A`
    |
 note: required by a bound in `FnOnce`
@@ -37,19 +50,6 @@ help: consider further restricting type parameter `A` with unstable trait `Tuple
 LL |     A: Eq + Hash + Clone + std::marker::Tuple,
    |                          ++++++++++++++++++++
 
-error[E0059]: type parameter to bare `FnOnce` trait must be a tuple
-  --> $DIR/rust-call-abi-not-a-tuple-ice-81974.rs:45:5
-   |
-LL |     extern "rust-call" fn call_mut(&mut self, a: A) -> Self::Output {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `A`
-   |
-note: required by a bound in `FnOnce`
-  --> $SRC_DIR/core/src/ops/function.rs:LL:COL
-help: consider further restricting type parameter `A` with unstable trait `Tuple`
-   |
-LL |     A: Eq + Hash + Clone + std::marker::Tuple,
-   |                          ++++++++++++++++++++
-
 error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
   --> $DIR/rust-call-abi-not-a-tuple-ice-81974.rs:31:5
    |
diff --git a/tests/ui/lazy-type-alias/inherent-impls-overflow.current.stderr b/tests/ui/lazy-type-alias/inherent-impls-overflow.current.stderr
index 85ac98f4050..e91946066bd 100644
--- a/tests/ui/lazy-type-alias/inherent-impls-overflow.current.stderr
+++ b/tests/ui/lazy-type-alias/inherent-impls-overflow.current.stderr
@@ -1,8 +1,8 @@
 error[E0275]: overflow normalizing the type alias `Loop`
-  --> $DIR/inherent-impls-overflow.rs:8:13
+  --> $DIR/inherent-impls-overflow.rs:8:1
    |
 LL | type Loop = Loop;
-   |             ^^^^
+   | ^^^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
@@ -15,18 +15,18 @@ LL | impl Loop {}
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
 error[E0275]: overflow normalizing the type alias `Poly0<(((((((...,),),),),),),)>`
-  --> $DIR/inherent-impls-overflow.rs:17:17
+  --> $DIR/inherent-impls-overflow.rs:17:1
    |
 LL | type Poly0<T> = Poly1<(T,)>;
-   |                 ^^^^^^^^^^^
+   | ^^^^^^^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
 error[E0275]: overflow normalizing the type alias `Poly1<(((((((...,),),),),),),)>`
-  --> $DIR/inherent-impls-overflow.rs:21:17
+  --> $DIR/inherent-impls-overflow.rs:21:1
    |
 LL | type Poly1<T> = Poly0<(T,)>;
-   |                 ^^^^^^^^^^^
+   | ^^^^^^^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
diff --git a/tests/ui/lazy-type-alias/inherent-impls-overflow.next.stderr b/tests/ui/lazy-type-alias/inherent-impls-overflow.next.stderr
index e94f29de44f..62ed6e8e513 100644
--- a/tests/ui/lazy-type-alias/inherent-impls-overflow.next.stderr
+++ b/tests/ui/lazy-type-alias/inherent-impls-overflow.next.stderr
@@ -1,8 +1,8 @@
 error[E0271]: type mismatch resolving `Loop normalizes-to _`
-  --> $DIR/inherent-impls-overflow.rs:8:13
+  --> $DIR/inherent-impls-overflow.rs:8:1
    |
 LL | type Loop = Loop;
-   |             ^^^^ types differ
+   | ^^^^^^^^^ types differ
 
 error[E0271]: type mismatch resolving `Loop normalizes-to _`
   --> $DIR/inherent-impls-overflow.rs:12:1
@@ -17,10 +17,10 @@ LL | impl Loop {}
    |      ^^^^ types differ
 
 error[E0275]: overflow evaluating the requirement `Poly1<(T,)> == _`
-  --> $DIR/inherent-impls-overflow.rs:17:17
+  --> $DIR/inherent-impls-overflow.rs:17:1
    |
 LL | type Poly0<T> = Poly1<(T,)>;
-   |                 ^^^^^^^^^^^
+   | ^^^^^^^^^^^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`inherent_impls_overflow`)
 
@@ -36,10 +36,10 @@ LL | type Poly0<T> = Poly1<(T,)>;
    = note: all type parameters must be used in a non-recursive way in order to constrain their variance
 
 error[E0275]: overflow evaluating the requirement `Poly0<(T,)> == _`
-  --> $DIR/inherent-impls-overflow.rs:21:17
+  --> $DIR/inherent-impls-overflow.rs:21:1
    |
 LL | type Poly1<T> = Poly0<(T,)>;
-   |                 ^^^^^^^^^^^
+   | ^^^^^^^^^^^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`inherent_impls_overflow`)
 
diff --git a/tests/ui/lazy-type-alias/unconstrained-params-in-impl-due-to-overflow.stderr b/tests/ui/lazy-type-alias/unconstrained-params-in-impl-due-to-overflow.stderr
index bcffa02ddd4..d8270a0abdd 100644
--- a/tests/ui/lazy-type-alias/unconstrained-params-in-impl-due-to-overflow.stderr
+++ b/tests/ui/lazy-type-alias/unconstrained-params-in-impl-due-to-overflow.stderr
@@ -5,10 +5,10 @@ LL | impl<T> Loop<T> {}
    |      ^ unconstrained type parameter
 
 error[E0275]: overflow normalizing the type alias `Loop<T>`
-  --> $DIR/unconstrained-params-in-impl-due-to-overflow.rs:6:16
+  --> $DIR/unconstrained-params-in-impl-due-to-overflow.rs:6:1
    |
 LL | type Loop<T> = Loop<T>;
-   |                ^^^^^^^
+   | ^^^^^^^^^^^^
    |
    = note: in case this is a recursive type alias, consider using a struct, enum, or union instead
 
diff --git a/tests/ui/lifetimes/issue-64173-unused-lifetimes.stderr b/tests/ui/lifetimes/issue-64173-unused-lifetimes.stderr
index 534ba933ba5..4bfbe0eeff7 100644
--- a/tests/ui/lifetimes/issue-64173-unused-lifetimes.stderr
+++ b/tests/ui/lifetimes/issue-64173-unused-lifetimes.stderr
@@ -7,12 +7,6 @@ LL |     beta: [(); foo::<&'a ()>()],
    = note: lifetime parameters may not be used in const expressions
    = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
 
-error: generic `Self` types are currently not permitted in anonymous constants
-  --> $DIR/issue-64173-unused-lifetimes.rs:4:28
-   |
-LL |     array: [(); size_of::<&Self>()],
-   |                            ^^^^
-
 error[E0392]: lifetime parameter `'s` is never used
   --> $DIR/issue-64173-unused-lifetimes.rs:3:12
    |
@@ -21,6 +15,12 @@ LL | struct Foo<'s> {
    |
    = help: consider removing `'s`, referring to it in a field, or using a marker such as `PhantomData`
 
+error: generic `Self` types are currently not permitted in anonymous constants
+  --> $DIR/issue-64173-unused-lifetimes.rs:4:28
+   |
+LL |     array: [(); size_of::<&Self>()],
+   |                            ^^^^
+
 error[E0392]: lifetime parameter `'a` is never used
   --> $DIR/issue-64173-unused-lifetimes.rs:15:12
    |
diff --git a/tests/ui/lifetimes/issue-76168-hr-outlives-3.rs b/tests/ui/lifetimes/issue-76168-hr-outlives-3.rs
index eab436fa341..d6fda129e36 100644
--- a/tests/ui/lifetimes/issue-76168-hr-outlives-3.rs
+++ b/tests/ui/lifetimes/issue-76168-hr-outlives-3.rs
@@ -7,10 +7,12 @@ async fn wrapper<F>(f: F)
 //~^ ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
 //~| ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
 //~| ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
-//~| ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
 where
 F:,
 for<'a> <i32 as FnOnce<(&'a mut i32,)>>::Output: Future<Output = ()> + 'a,
+//~^ ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
+//~| ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
+//~| ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
 {
     //~^ ERROR: expected a `FnOnce(&'a mut i32)` closure, found `i32`
     let mut i = 41;
diff --git a/tests/ui/lifetimes/issue-76168-hr-outlives-3.stderr b/tests/ui/lifetimes/issue-76168-hr-outlives-3.stderr
index 90572fed0ed..945d38d17f6 100644
--- a/tests/ui/lifetimes/issue-76168-hr-outlives-3.stderr
+++ b/tests/ui/lifetimes/issue-76168-hr-outlives-3.stderr
@@ -10,10 +10,26 @@ LL | | for<'a> <i32 as FnOnce<(&'a mut i32,)>>::Output: Future<Output = ()> + 'a
    = help: the trait `for<'a> FnOnce(&'a mut i32)` is not implemented for `i32`
 
 error[E0277]: expected a `FnOnce(&'a mut i32)` closure, found `i32`
-  --> $DIR/issue-76168-hr-outlives-3.rs:6:10
+  --> $DIR/issue-76168-hr-outlives-3.rs:12:50
    |
-LL | async fn wrapper<F>(f: F)
-   |          ^^^^^^^ expected an `FnOnce(&'a mut i32)` closure, found `i32`
+LL | for<'a> <i32 as FnOnce<(&'a mut i32,)>>::Output: Future<Output = ()> + 'a,
+   |                                                  ^^^^^^^^^^^^^^^^^^^ expected an `FnOnce(&'a mut i32)` closure, found `i32`
+   |
+   = help: the trait `for<'a> FnOnce(&'a mut i32)` is not implemented for `i32`
+
+error[E0277]: expected a `FnOnce(&'a mut i32)` closure, found `i32`
+  --> $DIR/issue-76168-hr-outlives-3.rs:12:57
+   |
+LL | for<'a> <i32 as FnOnce<(&'a mut i32,)>>::Output: Future<Output = ()> + 'a,
+   |                                                         ^^^^^^^^^^^ expected an `FnOnce(&'a mut i32)` closure, found `i32`
+   |
+   = help: the trait `for<'a> FnOnce(&'a mut i32)` is not implemented for `i32`
+
+error[E0277]: expected a `FnOnce(&'a mut i32)` closure, found `i32`
+  --> $DIR/issue-76168-hr-outlives-3.rs:12:72
+   |
+LL | for<'a> <i32 as FnOnce<(&'a mut i32,)>>::Output: Future<Output = ()> + 'a,
+   |                                                                        ^^ expected an `FnOnce(&'a mut i32)` closure, found `i32`
    |
    = help: the trait `for<'a> FnOnce(&'a mut i32)` is not implemented for `i32`
 
@@ -41,7 +57,7 @@ LL | | for<'a> <i32 as FnOnce<(&'a mut i32,)>>::Output: Future<Output = ()> + 'a
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0277]: expected a `FnOnce(&'a mut i32)` closure, found `i32`
-  --> $DIR/issue-76168-hr-outlives-3.rs:14:1
+  --> $DIR/issue-76168-hr-outlives-3.rs:16:1
    |
 LL | / {
 LL | |
@@ -52,6 +68,6 @@ LL | | }
    |
    = help: the trait `for<'a> FnOnce(&'a mut i32)` is not implemented for `i32`
 
-error: aborting due to 5 previous errors
+error: aborting due to 7 previous errors
 
 For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/lifetimes/issue-95023.stderr b/tests/ui/lifetimes/issue-95023.stderr
index cbc0eeebee1..dffa033fb17 100644
--- a/tests/ui/lifetimes/issue-95023.stderr
+++ b/tests/ui/lifetimes/issue-95023.stderr
@@ -32,6 +32,14 @@ help: parenthesized trait syntax expands to `Fn<(&isize,), Output=()>`
 LL | impl Fn(&isize) for Error {
    |      ^^^^^^^^^^
 
+error[E0046]: not all trait items implemented, missing: `call`
+  --> $DIR/issue-95023.rs:3:1
+   |
+LL | impl Fn(&isize) for Error {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `call` in implementation
+   |
+   = help: implement the missing item: `fn call(&self, _: (&isize,)) -> <Self as FnOnce<(&isize,)>>::Output { todo!() }`
+
 error[E0277]: expected a `FnMut(&isize)` closure, found `Error`
   --> $DIR/issue-95023.rs:3:21
    |
@@ -42,14 +50,6 @@ LL | impl Fn(&isize) for Error {
 note: required by a bound in `Fn`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
-error[E0046]: not all trait items implemented, missing: `call`
-  --> $DIR/issue-95023.rs:3:1
-   |
-LL | impl Fn(&isize) for Error {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `call` in implementation
-   |
-   = help: implement the missing item: `fn call(&self, _: (&isize,)) -> <Self as FnOnce<(&isize,)>>::Output { todo!() }`
-
 error[E0220]: associated type `B` not found for `Self`
   --> $DIR/issue-95023.rs:8:44
    |
diff --git a/tests/ui/auxiliary/msvc-data-only-lib.rs b/tests/ui/linkage-attr/auxiliary/msvc-static-data-import-lib.rs
index b8a8f905e8b..b8a8f905e8b 100644
--- a/tests/ui/auxiliary/msvc-data-only-lib.rs
+++ b/tests/ui/linkage-attr/auxiliary/msvc-static-data-import-lib.rs
diff --git a/tests/ui/link-section.rs b/tests/ui/linkage-attr/link-section-placement.rs
index a8de8c2e1e7..6a143bfedb4 100644
--- a/tests/ui/link-section.rs
+++ b/tests/ui/linkage-attr/link-section-placement.rs
@@ -1,8 +1,9 @@
+//! Test placement of functions and statics in custom link sections
+
 //@ run-pass
 
 // FIXME(static_mut_refs): Do not allow `static_mut_refs` lint
 #![allow(static_mut_refs)]
-
 #![allow(non_upper_case_globals)]
 #[cfg(not(target_vendor = "apple"))]
 #[link_section = ".moretext"]
diff --git a/tests/ui/linkage-attr/msvc-static-data-import.rs b/tests/ui/linkage-attr/msvc-static-data-import.rs
new file mode 100644
index 00000000000..e53eb404ef6
--- /dev/null
+++ b/tests/ui/linkage-attr/msvc-static-data-import.rs
@@ -0,0 +1,18 @@
+//! Test that static data from external crates can be imported on MSVC targets.
+//!
+//! On Windows MSVC targets, static data from external rlibs must be imported
+//! through `__imp_<symbol>` stubs to ensure proper linking. Without this,
+//! the linker would fail with "unresolved external symbol" errors when trying
+//! to reference static data from another crate.
+//!
+//! Regression test for <https://github.com/rust-lang/rust/issues/26591>.
+//! Fixed in <https://github.com/rust-lang/rust/pull/28646>.
+
+//@ run-pass
+//@ aux-build:msvc-static-data-import-lib.rs
+
+extern crate msvc_static_data_import_lib;
+
+fn main() {
+    println!("The answer is {}!", msvc_static_data_import_lib::FOO);
+}
diff --git a/tests/ui/missing_debug_impls.rs b/tests/ui/lint/missing-debug-implementations-lint.rs
index 3abc0706887..8a93f052f9c 100644
--- a/tests/ui/missing_debug_impls.rs
+++ b/tests/ui/lint/missing-debug-implementations-lint.rs
@@ -1,3 +1,7 @@
+//! Test the `missing_debug_implementations` lint that warns about public types without Debug.
+//!
+//! See https://github.com/rust-lang/rust/issues/20855
+
 //@ compile-flags: --crate-type lib
 #![deny(missing_debug_implementations)]
 #![allow(unused)]
@@ -10,7 +14,6 @@ pub enum A {} //~ ERROR type does not implement `Debug`
 pub enum B {}
 
 pub enum C {}
-
 impl fmt::Debug for C {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
         Ok(())
@@ -23,15 +26,14 @@ pub struct Foo; //~ ERROR type does not implement `Debug`
 pub struct Bar;
 
 pub struct Baz;
-
 impl fmt::Debug for Baz {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
         Ok(())
     }
 }
 
+// Private types should not trigger the lint
 struct PrivateStruct;
-
 enum PrivateEnum {}
 
 #[derive(Debug)]
diff --git a/tests/ui/missing_debug_impls.stderr b/tests/ui/lint/missing-debug-implementations-lint.stderr
index 0538f207b44..288ab981034 100644
--- a/tests/ui/missing_debug_impls.stderr
+++ b/tests/ui/lint/missing-debug-implementations-lint.stderr
@@ -1,17 +1,17 @@
 error: type does not implement `Debug`; consider adding `#[derive(Debug)]` or a manual implementation
-  --> $DIR/missing_debug_impls.rs:7:1
+  --> $DIR/missing-debug-implementations-lint.rs:11:1
    |
 LL | pub enum A {}
    | ^^^^^^^^^^^^^
    |
 note: the lint level is defined here
-  --> $DIR/missing_debug_impls.rs:2:9
+  --> $DIR/missing-debug-implementations-lint.rs:6:9
    |
 LL | #![deny(missing_debug_implementations)]
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: type does not implement `Debug`; consider adding `#[derive(Debug)]` or a manual implementation
-  --> $DIR/missing_debug_impls.rs:20:1
+  --> $DIR/missing-debug-implementations-lint.rs:23:1
    |
 LL | pub struct Foo;
    | ^^^^^^^^^^^^^^^
diff --git a/tests/ui/lint/unused/unused-attr-duplicate.rs b/tests/ui/lint/unused/unused-attr-duplicate.rs
index 407af40654e..bf94a42f6e0 100644
--- a/tests/ui/lint/unused/unused-attr-duplicate.rs
+++ b/tests/ui/lint/unused/unused-attr-duplicate.rs
@@ -102,4 +102,10 @@ pub fn no_mangle_test() {}
 #[used] //~ ERROR unused attribute
 static FOO: u32 = 0;
 
+#[link_section = ".text"]
+//~^ ERROR unused attribute
+//~| WARN this was previously accepted
+#[link_section = ".bss"]
+pub extern "C" fn example() {}
+
 fn main() {}
diff --git a/tests/ui/lint/unused/unused-attr-duplicate.stderr b/tests/ui/lint/unused/unused-attr-duplicate.stderr
index e8452465efc..feae8528cf7 100644
--- a/tests/ui/lint/unused/unused-attr-duplicate.stderr
+++ b/tests/ui/lint/unused/unused-attr-duplicate.stderr
@@ -289,5 +289,18 @@ note: attribute also specified here
 LL | #[used]
    | ^^^^^^^
 
-error: aborting due to 23 previous errors
+error: unused attribute
+  --> $DIR/unused-attr-duplicate.rs:105:1
+   |
+LL | #[link_section = ".text"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
+   |
+note: attribute also specified here
+  --> $DIR/unused-attr-duplicate.rs:108:1
+   |
+LL | #[link_section = ".bss"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+
+error: aborting due to 24 previous errors
 
diff --git a/tests/ui/log-err-phi.rs b/tests/ui/log-err-phi.rs
deleted file mode 100644
index 1bb97758782..00000000000
--- a/tests/ui/log-err-phi.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-//@ run-pass
-
-pub fn main() {
-    if false {
-        println!("{}", "foobar");
-    }
-}
diff --git a/tests/ui/log-knows-the-names-of-variants.rs b/tests/ui/log-knows-the-names-of-variants.rs
deleted file mode 100644
index cb82cb4878a..00000000000
--- a/tests/ui/log-knows-the-names-of-variants.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-//@ run-pass
-
-#![allow(non_camel_case_types)]
-#![allow(dead_code)]
-#[derive(Debug)]
-enum foo {
-  a(usize),
-  b(String),
-  c,
-}
-
-#[derive(Debug)]
-enum bar {
-  d, e, f
-}
-
-pub fn main() {
-    assert_eq!("a(22)".to_string(), format!("{:?}", foo::a(22)));
-    assert_eq!("c".to_string(), format!("{:?}", foo::c));
-    assert_eq!("d".to_string(), format!("{:?}", bar::d));
-}
diff --git a/tests/ui/loud_ui.rs b/tests/ui/loud_ui.rs
deleted file mode 100644
index 2a73e49e172..00000000000
--- a/tests/ui/loud_ui.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-//@ should-fail
-
-// this test ensures that when we forget to use
-// any `//~ ERROR` comments whatsoever, that the test doesn't succeed
-
-fn main() {}
diff --git a/tests/ui/lowering/issue-121108.stderr b/tests/ui/lowering/issue-121108.stderr
index e4942e8cb07..f68655a7002 100644
--- a/tests/ui/lowering/issue-121108.stderr
+++ b/tests/ui/lowering/issue-121108.stderr
@@ -5,7 +5,7 @@ LL | #![derive(Clone, Copy)]
    | ^^^^^^^^^^^^^^^^^^^^^^^
 LL |
 LL | use std::ptr::addr_of;
-   |               ------- the inner attribute doesn't annotate this `use` import
+   |               ------- the inner attribute doesn't annotate this import
    |
 help: perhaps you meant to use an outer attribute
    |
diff --git a/tests/ui/macros/macro-span-issue-116502.stderr b/tests/ui/macros/macro-span-issue-116502.stderr
index 68f8874f5d6..024656e685f 100644
--- a/tests/ui/macros/macro-span-issue-116502.stderr
+++ b/tests/ui/macros/macro-span-issue-116502.stderr
@@ -4,7 +4,7 @@ error[E0121]: the placeholder `_` is not allowed within types on item signatures
 LL |             _
    |             ^ not allowed in type signatures
 ...
-LL |         T: Trait<m!()>;
+LL |     struct S<T = m!()>(m!(), T)
    |                  ---- in this macro invocation
    |
    = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
@@ -15,8 +15,8 @@ error[E0121]: the placeholder `_` is not allowed within types on item signatures
 LL |             _
    |             ^ not allowed in type signatures
 ...
-LL |     struct S<T = m!()>(m!(), T)
-   |                        ---- in this macro invocation
+LL |         T: Trait<m!()>;
+   |                  ---- in this macro invocation
    |
    = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
 
@@ -27,7 +27,7 @@ LL |             _
    |             ^ not allowed in type signatures
 ...
 LL |     struct S<T = m!()>(m!(), T)
-   |                  ---- in this macro invocation
+   |                        ---- in this macro invocation
    |
    = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
 
diff --git a/tests/ui/macros/macro-metavar-expr-concat/allowed-operations.rs b/tests/ui/macros/metavar-expressions/concat-allowed-operations.rs
index 695a752fe17..695a752fe17 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/allowed-operations.rs
+++ b/tests/ui/macros/metavar-expressions/concat-allowed-operations.rs
diff --git a/tests/ui/macros/macro-metavar-expr-concat/hygiene.rs b/tests/ui/macros/metavar-expressions/concat-hygiene.rs
index 24b0e36498a..24b0e36498a 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/hygiene.rs
+++ b/tests/ui/macros/metavar-expressions/concat-hygiene.rs
diff --git a/tests/ui/macros/macro-metavar-expr-concat/hygiene.stderr b/tests/ui/macros/metavar-expressions/concat-hygiene.stderr
index ef2326dce85..f3150d385ee 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/hygiene.stderr
+++ b/tests/ui/macros/metavar-expressions/concat-hygiene.stderr
@@ -1,5 +1,5 @@
 error[E0425]: cannot find value `abcdef` in this scope
-  --> $DIR/hygiene.rs:5:10
+  --> $DIR/concat-hygiene.rs:5:10
    |
 LL |         ${concat($lhs, $rhs)}
    |          ^^^^^^^^^^^^^^^^^^^^ not found in this scope
diff --git a/tests/ui/macros/macro-metavar-expr-concat/raw-identifiers.rs b/tests/ui/macros/metavar-expressions/concat-raw-identifiers.rs
index b1cb2141cc4..b1cb2141cc4 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/raw-identifiers.rs
+++ b/tests/ui/macros/metavar-expressions/concat-raw-identifiers.rs
diff --git a/tests/ui/macros/macro-metavar-expr-concat/raw-identifiers.stderr b/tests/ui/macros/metavar-expressions/concat-raw-identifiers.stderr
index 4e11e20acc5..7abab6a5103 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/raw-identifiers.stderr
+++ b/tests/ui/macros/metavar-expressions/concat-raw-identifiers.stderr
@@ -1,47 +1,47 @@
 error: expected identifier or string literal
-  --> $DIR/raw-identifiers.rs:28:22
+  --> $DIR/concat-raw-identifiers.rs:28:22
    |
 LL |         let ${concat(r#abc, abc)}: () = ();
    |                      ^^^^^
 
 error: expected identifier or string literal
-  --> $DIR/raw-identifiers.rs:32:27
+  --> $DIR/concat-raw-identifiers.rs:32:27
    |
 LL |         let ${concat(abc, r#abc)}: () = ();
    |                           ^^^^^
 
 error: expected identifier or string literal
-  --> $DIR/raw-identifiers.rs:35:22
+  --> $DIR/concat-raw-identifiers.rs:35:22
    |
 LL |         let ${concat(r#abc, r#abc)}: () = ();
    |                      ^^^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:5:28
+  --> $DIR/concat-raw-identifiers.rs:5:28
    |
 LL |         let ${concat(abc, $rhs)}: () = ();
    |                            ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:12:23
+  --> $DIR/concat-raw-identifiers.rs:12:23
    |
 LL |         let ${concat($lhs, abc)}: () = ();
    |                       ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:19:23
+  --> $DIR/concat-raw-identifiers.rs:19:23
    |
 LL |         let ${concat($lhs, $rhs)}: () = ();
    |                       ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:19:29
+  --> $DIR/concat-raw-identifiers.rs:19:29
    |
 LL |         let ${concat($lhs, $rhs)}: () = ();
    |                             ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:19:23
+  --> $DIR/concat-raw-identifiers.rs:19:23
    |
 LL |         let ${concat($lhs, $rhs)}: () = ();
    |                       ^^^
@@ -49,31 +49,31 @@ LL |         let ${concat($lhs, $rhs)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:42:28
+  --> $DIR/concat-raw-identifiers.rs:42:28
    |
 LL |         let ${concat(abc, $rhs)}: () = ();
    |                            ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:49:23
+  --> $DIR/concat-raw-identifiers.rs:49:23
    |
 LL |         let ${concat($lhs, abc)}: () = ();
    |                       ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:56:23
+  --> $DIR/concat-raw-identifiers.rs:56:23
    |
 LL |         let ${concat($lhs, $rhs)}: () = ();
    |                       ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:56:29
+  --> $DIR/concat-raw-identifiers.rs:56:29
    |
 LL |         let ${concat($lhs, $rhs)}: () = ();
    |                             ^^^
 
 error: `${concat(..)}` currently does not support raw identifiers
-  --> $DIR/raw-identifiers.rs:56:23
+  --> $DIR/concat-raw-identifiers.rs:56:23
    |
 LL |         let ${concat($lhs, $rhs)}: () = ();
    |                       ^^^
@@ -81,7 +81,7 @@ LL |         let ${concat($lhs, $rhs)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: expected pattern, found `$`
-  --> $DIR/raw-identifiers.rs:28:13
+  --> $DIR/concat-raw-identifiers.rs:28:13
    |
 LL |         let ${concat(r#abc, abc)}: () = ();
    |             ^ expected pattern
diff --git a/tests/ui/macros/macro-metavar-expr-concat/repetitions.rs b/tests/ui/macros/metavar-expressions/concat-repetitions.rs
index 52a7d5cd8a7..52a7d5cd8a7 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/repetitions.rs
+++ b/tests/ui/macros/metavar-expressions/concat-repetitions.rs
diff --git a/tests/ui/macros/macro-metavar-expr-concat/repetitions.stderr b/tests/ui/macros/metavar-expressions/concat-repetitions.stderr
index c3006c4be5d..18b0a90c1c8 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/repetitions.stderr
+++ b/tests/ui/macros/metavar-expressions/concat-repetitions.stderr
@@ -1,17 +1,17 @@
 error: invalid syntax
-  --> $DIR/repetitions.rs:14:20
+  --> $DIR/concat-repetitions.rs:14:20
    |
 LL |             const ${concat($a, Z)}: i32 = 3;
    |                    ^^^^^^^^^^^^^^^
 
 error: invalid syntax
-  --> $DIR/repetitions.rs:22:17
+  --> $DIR/concat-repetitions.rs:22:17
    |
 LL |         read::<${concat($t, $en)}>()
    |                 ^^^^^^^^^^^^^^^^^
 
 error: invalid syntax
-  --> $DIR/repetitions.rs:22:17
+  --> $DIR/concat-repetitions.rs:22:17
    |
 LL |         read::<${concat($t, $en)}>()
    |                 ^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/macros/metavar-expressions/concat-trace-errors.rs b/tests/ui/macros/metavar-expressions/concat-trace-errors.rs
new file mode 100644
index 00000000000..45407f5e86d
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/concat-trace-errors.rs
@@ -0,0 +1,33 @@
+// Our diagnostics should be able to point to a specific input that caused an invalid
+// identifier.
+
+#![feature(macro_metavar_expr_concat)]
+
+// See what we can do without expanding anything
+macro_rules! pre_expansion {
+    ($a:ident) => {
+        ${concat("hi", " bye ")};
+        ${concat("hi", "-", "bye")};
+        ${concat($a, "-")};
+    }
+}
+
+macro_rules! post_expansion {
+    ($a:literal) => {
+        const _: () = ${concat("hi", $a, "bye")};
+        //~^ ERROR is not generating a valid identifier
+    }
+}
+
+post_expansion!("!");
+
+macro_rules! post_expansion_many {
+    ($a:ident, $b:ident, $c:ident, $d:literal, $e:ident) => {
+        const _: () = ${concat($a, $b, $c, $d, $e)};
+        //~^ ERROR is not generating a valid identifier
+    }
+}
+
+post_expansion_many!(a, b, c, ".d", e);
+
+fn main() {}
diff --git a/tests/ui/macros/metavar-expressions/concat-trace-errors.stderr b/tests/ui/macros/metavar-expressions/concat-trace-errors.stderr
new file mode 100644
index 00000000000..dac8b58a15c
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/concat-trace-errors.stderr
@@ -0,0 +1,24 @@
+error: `${concat(..)}` is not generating a valid identifier
+  --> $DIR/concat-trace-errors.rs:17:24
+   |
+LL |         const _: () = ${concat("hi", $a, "bye")};
+   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^
+...
+LL | post_expansion!("!");
+   | -------------------- in this macro invocation
+   |
+   = note: this error originates in the macro `post_expansion` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: `${concat(..)}` is not generating a valid identifier
+  --> $DIR/concat-trace-errors.rs:26:24
+   |
+LL |         const _: () = ${concat($a, $b, $c, $d, $e)};
+   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+...
+LL | post_expansion_many!(a, b, c, ".d", e);
+   | -------------------------------------- in this macro invocation
+   |
+   = note: this error originates in the macro `post_expansion_many` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 2 previous errors
+
diff --git a/tests/ui/macros/macro-metavar-expr-concat/unicode-expansion.rs b/tests/ui/macros/metavar-expressions/concat-unicode-expansion.rs
index 4eeb2384deb..4eeb2384deb 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/unicode-expansion.rs
+++ b/tests/ui/macros/metavar-expressions/concat-unicode-expansion.rs
diff --git a/tests/ui/macros/macro-metavar-expr-concat/syntax-errors.rs b/tests/ui/macros/metavar-expressions/concat-usage-errors.rs
index 7673bd3200f..7d8756de9e2 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/syntax-errors.rs
+++ b/tests/ui/macros/metavar-expressions/concat-usage-errors.rs
@@ -1,6 +1,8 @@
+//@ edition: 2021
+
 #![feature(macro_metavar_expr_concat)]
 
-macro_rules! wrong_concat_declarations {
+macro_rules! syntax_errors {
     ($ex:expr) => {
         ${concat()}
         //~^ ERROR expected identifier
@@ -90,11 +92,31 @@ macro_rules! unsupported_literals {
         //~| ERROR expected pattern
         let ${concat(_a, 1)}: () = ();
         //~^ ERROR expected identifier or string literal
+        let ${concat(_a, 1.5)}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat(_a, c"hi")}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat(_a, b"hi")}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat(_a, b'b')}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat(_a, b'b')}: () = ();
+        //~^ ERROR expected identifier or string literal
 
         let ${concat($ident, 'b')}: () = ();
         //~^ ERROR expected identifier or string literal
         let ${concat($ident, 1)}: () = ();
         //~^ ERROR expected identifier or string literal
+        let ${concat($ident, 1.5)}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat($ident, c"hi")}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat($ident, b"hi")}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat($ident, b'b')}: () = ();
+        //~^ ERROR expected identifier or string literal
+        let ${concat($ident, b'b')}: () = ();
+        //~^ ERROR expected identifier or string literal
     }};
 }
 
@@ -132,7 +154,7 @@ macro_rules! bad_tt_literal {
 }
 
 fn main() {
-    wrong_concat_declarations!(1);
+    syntax_errors!(1);
 
     dollar_sign_without_referenced_ident!(VAR);
 
diff --git a/tests/ui/macros/macro-metavar-expr-concat/syntax-errors.stderr b/tests/ui/macros/metavar-expressions/concat-usage-errors.stderr
index 2de6d2b3ce3..8be3e792ec3 100644
--- a/tests/ui/macros/macro-metavar-expr-concat/syntax-errors.stderr
+++ b/tests/ui/macros/metavar-expressions/concat-usage-errors.stderr
@@ -1,71 +1,131 @@
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:5:10
+  --> $DIR/concat-usage-errors.rs:7:10
    |
 LL |         ${concat()}
    |          ^^^^^^^^^^
 
 error: `concat` must have at least two elements
-  --> $DIR/syntax-errors.rs:8:11
+  --> $DIR/concat-usage-errors.rs:10:11
    |
 LL |         ${concat(aaaa)}
    |           ^^^^^^
 
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:11:10
+  --> $DIR/concat-usage-errors.rs:13:10
    |
 LL |         ${concat(aaaa,)}
    |          ^^^^^^^^^^^^^^^
 
 error: expected comma
-  --> $DIR/syntax-errors.rs:16:10
+  --> $DIR/concat-usage-errors.rs:18:10
    |
 LL |         ${concat(aaaa aaaa)}
    |          ^^^^^^^^^^^^^^^^^^^
 
 error: `concat` must have at least two elements
-  --> $DIR/syntax-errors.rs:19:11
+  --> $DIR/concat-usage-errors.rs:21:11
    |
 LL |         ${concat($ex)}
    |           ^^^^^^
 
 error: expected comma
-  --> $DIR/syntax-errors.rs:25:10
+  --> $DIR/concat-usage-errors.rs:27:10
    |
 LL |         ${concat($ex, aaaa 123)}
    |          ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:28:10
+  --> $DIR/concat-usage-errors.rs:30:10
    |
 LL |         ${concat($ex, aaaa,)}
    |          ^^^^^^^^^^^^^^^^^^^^
 
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:88:26
+  --> $DIR/concat-usage-errors.rs:90:26
    |
 LL |         let ${concat(_a, 'b')}: () = ();
    |                          ^^^
 
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:91:26
+  --> $DIR/concat-usage-errors.rs:93:26
    |
 LL |         let ${concat(_a, 1)}: () = ();
    |                          ^
 
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:94:30
+  --> $DIR/concat-usage-errors.rs:95:26
+   |
+LL |         let ${concat(_a, 1.5)}: () = ();
+   |                          ^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:97:26
+   |
+LL |         let ${concat(_a, c"hi")}: () = ();
+   |                          ^^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:99:26
+   |
+LL |         let ${concat(_a, b"hi")}: () = ();
+   |                          ^^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:101:26
+   |
+LL |         let ${concat(_a, b'b')}: () = ();
+   |                          ^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:103:26
+   |
+LL |         let ${concat(_a, b'b')}: () = ();
+   |                          ^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:106:30
    |
 LL |         let ${concat($ident, 'b')}: () = ();
    |                              ^^^
 
 error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:96:30
+  --> $DIR/concat-usage-errors.rs:108:30
    |
 LL |         let ${concat($ident, 1)}: () = ();
    |                              ^
 
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:110:30
+   |
+LL |         let ${concat($ident, 1.5)}: () = ();
+   |                              ^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:112:30
+   |
+LL |         let ${concat($ident, c"hi")}: () = ();
+   |                              ^^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:114:30
+   |
+LL |         let ${concat($ident, b"hi")}: () = ();
+   |                              ^^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:116:30
+   |
+LL |         let ${concat($ident, b'b')}: () = ();
+   |                              ^^^^
+
+error: expected identifier or string literal
+  --> $DIR/concat-usage-errors.rs:118:30
+   |
+LL |         let ${concat($ident, b'b')}: () = ();
+   |                              ^^^^
+
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:22:19
+  --> $DIR/concat-usage-errors.rs:24:19
    |
 LL |         ${concat($ex, aaaa)}
    |                   ^^
@@ -73,13 +133,13 @@ LL |         ${concat($ex, aaaa)}
    = note: currently only string literals are supported
 
 error: variable `foo` is not recognized in meta-variable expression
-  --> $DIR/syntax-errors.rs:35:30
+  --> $DIR/concat-usage-errors.rs:37:30
    |
 LL |         const ${concat(FOO, $foo)}: i32 = 2;
    |                              ^^^
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:42:14
+  --> $DIR/concat-usage-errors.rs:44:14
    |
 LL |         let ${concat("1", $ident)}: () = ();
    |              ^^^^^^^^^^^^^^^^^^^^^
@@ -90,7 +150,7 @@ LL |     starting_number!(_abc);
    = note: this error originates in the macro `starting_number` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:55:14
+  --> $DIR/concat-usage-errors.rs:57:14
    |
 LL |         let ${concat("\u{00BD}", $ident)}: () = ();
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -101,7 +161,7 @@ LL |     starting_invalid_unicode!(_abc);
    = note: this error originates in the macro `starting_invalid_unicode` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:74:14
+  --> $DIR/concat-usage-errors.rs:76:14
    |
 LL |         let ${concat($ident, "\u{00BD}")}: () = ();
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -112,7 +172,7 @@ LL |     ending_invalid_unicode!(_abc);
    = note: this error originates in the macro `ending_invalid_unicode` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: expected pattern, found `$`
-  --> $DIR/syntax-errors.rs:88:13
+  --> $DIR/concat-usage-errors.rs:90:13
    |
 LL |         let ${concat(_a, 'b')}: () = ();
    |             ^ expected pattern
@@ -123,7 +183,7 @@ LL |     unsupported_literals!(_abc);
    = note: this error originates in the macro `unsupported_literals` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:81:14
+  --> $DIR/concat-usage-errors.rs:83:14
    |
 LL |         let ${concat("", "")}: () = ();
    |              ^^^^^^^^^^^^^^^^
@@ -134,7 +194,7 @@ LL |     empty!();
    = note: this error originates in the macro `empty` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -145,7 +205,7 @@ LL |     bad_literal_string!("\u{00BD}");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -156,7 +216,7 @@ LL |     bad_literal_string!("\x41");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -167,7 +227,7 @@ LL |     bad_literal_string!("🤷");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -178,7 +238,7 @@ LL |     bad_literal_string!("d[-_-]b");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -189,7 +249,7 @@ LL |     bad_literal_string!("-1");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -200,7 +260,7 @@ LL |     bad_literal_string!("1.0");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `${concat(..)}` is not generating a valid identifier
-  --> $DIR/syntax-errors.rs:103:16
+  --> $DIR/concat-usage-errors.rs:125:16
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -211,7 +271,7 @@ LL |     bad_literal_string!("'1'");
    = note: this error originates in the macro `bad_literal_string` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:116:31
+  --> $DIR/concat-usage-errors.rs:138:31
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                               ^^^^^^^
@@ -219,7 +279,7 @@ LL |         const ${concat(_foo, $literal)}: () = ();
    = note: currently only string literals are supported
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:116:31
+  --> $DIR/concat-usage-errors.rs:138:31
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                               ^^^^^^^
@@ -228,7 +288,7 @@ LL |         const ${concat(_foo, $literal)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:116:31
+  --> $DIR/concat-usage-errors.rs:138:31
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                               ^^^^^^^
@@ -237,7 +297,7 @@ LL |         const ${concat(_foo, $literal)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:116:31
+  --> $DIR/concat-usage-errors.rs:138:31
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                               ^^^^^^^
@@ -246,7 +306,7 @@ LL |         const ${concat(_foo, $literal)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:116:31
+  --> $DIR/concat-usage-errors.rs:138:31
    |
 LL |         const ${concat(_foo, $literal)}: () = ();
    |                               ^^^^^^^
@@ -255,7 +315,7 @@ LL |         const ${concat(_foo, $literal)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:127:31
+  --> $DIR/concat-usage-errors.rs:149:31
    |
 LL |         const ${concat(_foo, $tt)}: () = ();
    |                               ^^
@@ -263,7 +323,7 @@ LL |         const ${concat(_foo, $tt)}: () = ();
    = note: currently only string literals are supported
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:127:31
+  --> $DIR/concat-usage-errors.rs:149:31
    |
 LL |         const ${concat(_foo, $tt)}: () = ();
    |                               ^^
@@ -272,7 +332,7 @@ LL |         const ${concat(_foo, $tt)}: () = ();
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: metavariables of `${concat(..)}` must be of type `ident`, `literal` or `tt`
-  --> $DIR/syntax-errors.rs:127:31
+  --> $DIR/concat-usage-errors.rs:149:31
    |
 LL |         const ${concat(_foo, $tt)}: () = ();
    |                               ^^
@@ -280,5 +340,5 @@ LL |         const ${concat(_foo, $tt)}: () = ();
    = note: currently only string literals are supported
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
-error: aborting due to 33 previous errors
+error: aborting due to 43 previous errors
 
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/count-and-length-are-distinct.rs b/tests/ui/macros/metavar-expressions/count-and-length-are-distinct.rs
index 8ca453273cd..8ca453273cd 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/count-and-length-are-distinct.rs
+++ b/tests/ui/macros/metavar-expressions/count-and-length-are-distinct.rs
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/issue-111904.rs b/tests/ui/macros/metavar-expressions/count-empty-index-arg.rs
index 3000bfed6a8..69880ee7fa9 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/issue-111904.rs
+++ b/tests/ui/macros/metavar-expressions/count-empty-index-arg.rs
@@ -1,3 +1,6 @@
+// Issue: https://github.com/rust-lang/rust/issues/111904
+// Ensure that a trailing `,` is not interpreted as a `0`.
+
 #![feature(macro_metavar_expr)]
 
 macro_rules! foo {
@@ -10,5 +13,4 @@ fn test() {
     foo!(a, a; b, b);
 }
 
-fn main() {
-}
+fn main() {}
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/issue-111904.stderr b/tests/ui/macros/metavar-expressions/count-empty-index-arg.stderr
index fd53c1686cf..e1f9d020b7f 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/issue-111904.stderr
+++ b/tests/ui/macros/metavar-expressions/count-empty-index-arg.stderr
@@ -1,11 +1,11 @@
 error: `count` followed by a comma must have an associated index indicating its depth
-  --> $DIR/issue-111904.rs:4:37
+  --> $DIR/count-empty-index-arg.rs:7:37
    |
 LL |     ( $( $($t:ident),* );* ) => { ${count($t,)} }
    |                                     ^^^^^
 
 error: expected expression, found `$`
-  --> $DIR/issue-111904.rs:4:35
+  --> $DIR/count-empty-index-arg.rs:7:35
    |
 LL |     ( $( $($t:ident),* );* ) => { ${count($t,)} }
    |                                   ^ expected expression
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs b/tests/ui/macros/metavar-expressions/dollar-dollar-has-correct-behavior.rs
index 9b8e3216a68..9b8e3216a68 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs
+++ b/tests/ui/macros/metavar-expressions/dollar-dollar-has-correct-behavior.rs
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/feature-gate-macro_metavar_expr.rs b/tests/ui/macros/metavar-expressions/feature-gate-macro_metavar_expr.rs
index 51445221c57..51445221c57 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/feature-gate-macro_metavar_expr.rs
+++ b/tests/ui/macros/metavar-expressions/feature-gate-macro_metavar_expr.rs
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/macro-expansion.rs b/tests/ui/macros/metavar-expressions/macro-expansion.rs
index 1d34275874b..1d34275874b 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/macro-expansion.rs
+++ b/tests/ui/macros/metavar-expressions/macro-expansion.rs
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/out-of-bounds-arguments.rs b/tests/ui/macros/metavar-expressions/out-of-bounds-arguments.rs
index 0caa3ea89e4..0caa3ea89e4 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/out-of-bounds-arguments.rs
+++ b/tests/ui/macros/metavar-expressions/out-of-bounds-arguments.rs
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/out-of-bounds-arguments.stderr b/tests/ui/macros/metavar-expressions/out-of-bounds-arguments.stderr
index 0b441cad083..0b441cad083 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/out-of-bounds-arguments.stderr
+++ b/tests/ui/macros/metavar-expressions/out-of-bounds-arguments.stderr
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/required-feature.rs b/tests/ui/macros/metavar-expressions/required-feature.rs
index 77c165e3855..77c165e3855 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/required-feature.rs
+++ b/tests/ui/macros/metavar-expressions/required-feature.rs
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/required-feature.stderr b/tests/ui/macros/metavar-expressions/required-feature.stderr
index f28f822a058..f28f822a058 100644
--- a/tests/ui/macros/rfc-3086-metavar-expr/required-feature.stderr
+++ b/tests/ui/macros/metavar-expressions/required-feature.stderr
diff --git a/tests/ui/macros/metavar-expressions/syntax-errors.rs b/tests/ui/macros/metavar-expressions/syntax-errors.rs
new file mode 100644
index 00000000000..8fc76a74baa
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/syntax-errors.rs
@@ -0,0 +1,117 @@
+// General syntax errors that apply to all matavariable expressions
+//
+// We don't invoke the macros here to ensure code gets rejected at the definition rather than
+// only when expanded.
+
+#![feature(macro_metavar_expr)]
+
+macro_rules! dollar_dollar_in_the_lhs {
+    ( $$ $a:ident ) => {
+        //~^ ERROR unexpected token: $
+    };
+}
+
+macro_rules! metavar_in_the_lhs {
+    ( ${ len() } ) => {
+        //~^ ERROR unexpected token: {
+        //~| ERROR expected one of: `*`, `+`, or `?`
+    };
+}
+
+macro_rules! metavar_token_without_ident {
+    ( $( $i:ident ),* ) => { ${ ignore() } };
+    //~^ ERROR meta-variable expressions must be referenced using a dollar sign
+}
+
+macro_rules! metavar_with_literal_suffix {
+    ( $( $i:ident ),* ) => { ${ index(1u32) } };
+    //~^ ERROR only unsuffixes integer literals are supported in meta-variable expressions
+}
+
+macro_rules! mve_without_parens {
+    ( $( $i:ident ),* ) => { ${ count } };
+    //~^ ERROR meta-variable expression parameter must be wrapped in parentheses
+}
+
+#[rustfmt::skip]
+macro_rules! empty_expression {
+    () => { ${} };
+    //~^ ERROR expected identifier or string literal
+}
+
+#[rustfmt::skip]
+macro_rules! open_brackets_with_lit {
+     () => { ${ "hi" } };
+     //~^ ERROR expected identifier
+ }
+
+macro_rules! mve_wrong_delim {
+    ( $( $i:ident ),* ) => { ${ count{i} } };
+    //~^ ERROR meta-variable expression parameter must be wrapped in parentheses
+}
+
+macro_rules! invalid_metavar {
+    () => { ${ignore($123)} }
+    //~^ ERROR expected identifier, found `123`
+}
+
+#[rustfmt::skip]
+macro_rules! open_brackets_with_group {
+    ( $( $i:ident ),* ) => { ${ {} } };
+    //~^ ERROR expected identifier
+}
+
+macro_rules! extra_garbage_after_metavar {
+    ( $( $i:ident ),* ) => {
+        ${count() a b c}
+        //~^ ERROR unexpected token: a
+        ${count($i a b c)}
+        //~^ ERROR unexpected token: a
+        ${count($i, 1 a b c)}
+        //~^ ERROR unexpected token: a
+        ${count($i) a b c}
+        //~^ ERROR unexpected token: a
+
+        ${ignore($i) a b c}
+        //~^ ERROR unexpected token: a
+        ${ignore($i a b c)}
+        //~^ ERROR unexpected token: a
+
+        ${index() a b c}
+        //~^ ERROR unexpected token: a
+        ${index(1 a b c)}
+        //~^ ERROR unexpected token: a
+
+        ${index() a b c}
+        //~^ ERROR unexpected token: a
+        ${index(1 a b c)}
+        //~^ ERROR unexpected token: a
+    };
+}
+
+const IDX: usize = 1;
+macro_rules! metavar_depth_is_not_literal {
+    ( $( $i:ident ),* ) => { ${ index(IDX) } };
+    //~^ ERROR meta-variable expression depth must be a literal
+}
+
+macro_rules! unknown_count_ident {
+    ( $( $i:ident )* ) => {
+        ${count(foo)}
+        //~^ ERROR meta-variable expressions must be referenced using a dollar sign
+    };
+}
+
+macro_rules! unknown_ignore_ident {
+    ( $( $i:ident )* ) => {
+        ${ignore(bar)}
+        //~^ ERROR meta-variable expressions must be referenced using a dollar sign
+    };
+}
+
+macro_rules! unknown_metavar {
+    ( $( $i:ident ),* ) => { ${ aaaaaaaaaaaaaa(i) } };
+    //~^ ERROR unrecognized meta-variable expression
+}
+
+fn main() {}
diff --git a/tests/ui/macros/metavar-expressions/syntax-errors.stderr b/tests/ui/macros/metavar-expressions/syntax-errors.stderr
new file mode 100644
index 00000000000..20d2358facc
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/syntax-errors.stderr
@@ -0,0 +1,224 @@
+error: unexpected token: $
+  --> $DIR/syntax-errors.rs:9:8
+   |
+LL |     ( $$ $a:ident ) => {
+   |        ^
+
+note: `$$` and meta-variable expressions are not allowed inside macro parameter definitions
+  --> $DIR/syntax-errors.rs:9:8
+   |
+LL |     ( $$ $a:ident ) => {
+   |        ^
+
+error: unexpected token: {
+  --> $DIR/syntax-errors.rs:15:8
+   |
+LL |     ( ${ len() } ) => {
+   |        ^^^^^^^^^
+
+note: `$$` and meta-variable expressions are not allowed inside macro parameter definitions
+  --> $DIR/syntax-errors.rs:15:8
+   |
+LL |     ( ${ len() } ) => {
+   |        ^^^^^^^^^
+
+error: expected one of: `*`, `+`, or `?`
+  --> $DIR/syntax-errors.rs:15:8
+   |
+LL |     ( ${ len() } ) => {
+   |        ^^^^^^^^^
+
+error: meta-variables within meta-variable expressions must be referenced using a dollar sign
+  --> $DIR/syntax-errors.rs:22:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ ignore() } };
+   |                                 ^^^^^^
+
+error: only unsuffixes integer literals are supported in meta-variable expressions
+  --> $DIR/syntax-errors.rs:27:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ index(1u32) } };
+   |                                 ^^^^^
+
+error: meta-variable expression parameter must be wrapped in parentheses
+  --> $DIR/syntax-errors.rs:32:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ count } };
+   |                                 ^^^^^
+
+error: meta-variable expression parameter must be wrapped in parentheses
+  --> $DIR/syntax-errors.rs:49:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ count{i} } };
+   |                                 ^^^^^
+
+error: expected identifier, found `123`
+  --> $DIR/syntax-errors.rs:54:23
+   |
+LL |     () => { ${ignore($123)} }
+   |                       ^^^ help: try removing `123`
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:66:19
+   |
+LL |         ${count() a b c}
+   |                   ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:66:19
+   |
+LL |         ${count() a b c}
+   |                   ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:68:20
+   |
+LL |         ${count($i a b c)}
+   |                    ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:68:20
+   |
+LL |         ${count($i a b c)}
+   |                    ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:70:23
+   |
+LL |         ${count($i, 1 a b c)}
+   |                       ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:70:23
+   |
+LL |         ${count($i, 1 a b c)}
+   |                       ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:72:21
+   |
+LL |         ${count($i) a b c}
+   |                     ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:72:21
+   |
+LL |         ${count($i) a b c}
+   |                     ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:75:22
+   |
+LL |         ${ignore($i) a b c}
+   |                      ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:75:22
+   |
+LL |         ${ignore($i) a b c}
+   |                      ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:77:21
+   |
+LL |         ${ignore($i a b c)}
+   |                     ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:77:21
+   |
+LL |         ${ignore($i a b c)}
+   |                     ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:80:19
+   |
+LL |         ${index() a b c}
+   |                   ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:80:19
+   |
+LL |         ${index() a b c}
+   |                   ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:82:19
+   |
+LL |         ${index(1 a b c)}
+   |                   ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:82:19
+   |
+LL |         ${index(1 a b c)}
+   |                   ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:85:19
+   |
+LL |         ${index() a b c}
+   |                   ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:85:19
+   |
+LL |         ${index() a b c}
+   |                   ^
+
+error: unexpected token: a
+  --> $DIR/syntax-errors.rs:87:19
+   |
+LL |         ${index(1 a b c)}
+   |                   ^
+   |
+note: meta-variable expression must not have trailing tokens
+  --> $DIR/syntax-errors.rs:87:19
+   |
+LL |         ${index(1 a b c)}
+   |                   ^
+
+error: meta-variable expression depth must be a literal
+  --> $DIR/syntax-errors.rs:94:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ index(IDX) } };
+   |                                 ^^^^^
+
+error: meta-variables within meta-variable expressions must be referenced using a dollar sign
+  --> $DIR/syntax-errors.rs:100:11
+   |
+LL |         ${count(foo)}
+   |           ^^^^^
+
+error: meta-variables within meta-variable expressions must be referenced using a dollar sign
+  --> $DIR/syntax-errors.rs:107:11
+   |
+LL |         ${ignore(bar)}
+   |           ^^^^^^
+
+error: unrecognized meta-variable expression
+  --> $DIR/syntax-errors.rs:113:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ aaaaaaaaaaaaaa(i) } };
+   |                                 ^^^^^^^^^^^^^^ help: supported expressions are count, ignore, index and len
+
+error: expected identifier or string literal
+  --> $DIR/syntax-errors.rs:38:14
+   |
+LL |     () => { ${} };
+   |              ^^
+
+error: expected identifier, found `"hi"`
+  --> $DIR/syntax-errors.rs:44:17
+   |
+LL |      () => { ${ "hi" } };
+   |                 ^^^^ help: try removing `"hi"`
+
+error: expected identifier or string literal
+  --> $DIR/syntax-errors.rs:60:33
+   |
+LL |     ( $( $i:ident ),* ) => { ${ {} } };
+   |                                 ^^
+
+error: aborting due to 25 previous errors
+
diff --git a/tests/ui/macros/metavar-expressions/usage-errors.rs b/tests/ui/macros/metavar-expressions/usage-errors.rs
new file mode 100644
index 00000000000..feff02e2ce4
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/usage-errors.rs
@@ -0,0 +1,55 @@
+// Errors for the `count` and `length` metavariable expressions
+
+#![feature(macro_metavar_expr)]
+
+// `curly` = Right hand side curly brackets
+// `no_rhs_dollar` = No dollar sign at the right hand side meta variable "function"
+// `round` = Left hand side round brackets
+
+macro_rules! curly__no_rhs_dollar__round {
+    ( $( $i:ident ),* ) => { ${ count($i) } };
+}
+const _: u32 = curly__no_rhs_dollar__round!(a, b, c);
+
+macro_rules! curly__no_rhs_dollar__no_round {
+    ( $i:ident ) => { ${ count($i) } };
+    //~^ ERROR `count` can not be placed inside the innermost repetition
+}
+curly__no_rhs_dollar__no_round!(a);
+
+macro_rules! curly__rhs_dollar__no_round {
+    ( $i:ident ) => { ${ count($i) } };
+    //~^ ERROR `count` can not be placed inside the innermost repetition
+}
+curly__rhs_dollar__no_round !(a);
+
+#[rustfmt::skip] // autoformatters can break a few of the error traces
+macro_rules! no_curly__no_rhs_dollar__round {
+    ( $( $i:ident ),* ) => { count(i) };
+    //~^ ERROR missing `fn` or `struct` for function or struct definition
+}
+no_curly__no_rhs_dollar__round !(a, b, c);
+
+#[rustfmt::skip] // autoformatters can break a few of the error traces
+macro_rules! no_curly__no_rhs_dollar__no_round {
+    ( $i:ident ) => { count(i) };
+    //~^ ERROR missing `fn` or `struct` for function or struct definition
+}
+no_curly__no_rhs_dollar__no_round !(a);
+
+#[rustfmt::skip] // autoformatters can break a few of the error traces
+macro_rules! no_curly__rhs_dollar__round {
+    ( $( $i:ident ),* ) => { count($i) };
+    //~^ ERROR variable `i` is still repeating at this depth
+}
+no_curly__rhs_dollar__round! (a);
+
+#[rustfmt::skip] // autoformatters can break a few of the error traces
+macro_rules! no_curly__rhs_dollar__no_round {
+    ( $i:ident ) => { count($i) };
+    //~^ ERROR cannot find function `count` in this scope
+}
+const _: u32 = no_curly__rhs_dollar__no_round! (a);
+//~^ ERROR cannot find value `a` in this scope
+
+fn main() {}
diff --git a/tests/ui/macros/metavar-expressions/usage-errors.stderr b/tests/ui/macros/metavar-expressions/usage-errors.stderr
new file mode 100644
index 00000000000..f66f522e23b
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/usage-errors.stderr
@@ -0,0 +1,71 @@
+error: `count` can not be placed inside the innermost repetition
+  --> $DIR/usage-errors.rs:15:24
+   |
+LL |     ( $i:ident ) => { ${ count($i) } };
+   |                        ^^^^^^^^^^^^^
+
+error: `count` can not be placed inside the innermost repetition
+  --> $DIR/usage-errors.rs:21:24
+   |
+LL |     ( $i:ident ) => { ${ count($i) } };
+   |                        ^^^^^^^^^^^^^
+
+error: missing `fn` or `struct` for function or struct definition
+  --> $DIR/usage-errors.rs:28:30
+   |
+LL |     ( $( $i:ident ),* ) => { count(i) };
+   |                              ^^^^^
+...
+LL | no_curly__no_rhs_dollar__round !(a, b, c);
+   | ----------------------------------------- in this macro invocation
+   |
+   = note: this error originates in the macro `no_curly__no_rhs_dollar__round` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: if you meant to call a macro, try
+   |
+LL |     ( $( $i:ident ),* ) => { count!(i) };
+   |                                   +
+
+error: missing `fn` or `struct` for function or struct definition
+  --> $DIR/usage-errors.rs:35:23
+   |
+LL |     ( $i:ident ) => { count(i) };
+   |                       ^^^^^
+...
+LL | no_curly__no_rhs_dollar__no_round !(a);
+   | -------------------------------------- in this macro invocation
+   |
+   = note: this error originates in the macro `no_curly__no_rhs_dollar__no_round` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: if you meant to call a macro, try
+   |
+LL |     ( $i:ident ) => { count!(i) };
+   |                            +
+
+error: variable `i` is still repeating at this depth
+  --> $DIR/usage-errors.rs:42:36
+   |
+LL |     ( $( $i:ident ),* ) => { count($i) };
+   |                                    ^^
+
+error[E0425]: cannot find value `a` in this scope
+  --> $DIR/usage-errors.rs:52:49
+   |
+LL |     ( $i:ident ) => { count($i) };
+   |                             -- due to this macro variable
+...
+LL | const _: u32 = no_curly__rhs_dollar__no_round! (a);
+   |                                                 ^ not found in this scope
+
+error[E0425]: cannot find function `count` in this scope
+  --> $DIR/usage-errors.rs:49:23
+   |
+LL |     ( $i:ident ) => { count($i) };
+   |                       ^^^^^ not found in this scope
+...
+LL | const _: u32 = no_curly__rhs_dollar__no_round! (a);
+   |                ----------------------------------- in this macro invocation
+   |
+   = note: this error originates in the macro `no_curly__rhs_dollar__no_round` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 7 previous errors
+
+For more information about this error, try `rustc --explain E0425`.
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.rs b/tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.rs
deleted file mode 100644
index 78cede92526..00000000000
--- a/tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.rs
+++ /dev/null
@@ -1,164 +0,0 @@
-#![feature(macro_metavar_expr)]
-
-// `curly` = Right hand side curly brackets
-// `no_rhs_dollar` = No dollar sign at the right hand side meta variable "function"
-// `round` = Left hand side round brackets
-
-macro_rules! curly__no_rhs_dollar__round {
-    ( $( $i:ident ),* ) => { ${ count($i) } };
-}
-
-macro_rules! curly__no_rhs_dollar__no_round {
-    ( $i:ident ) => { ${ count($i) } };
-    //~^ ERROR `count` can not be placed inside the innermost repetition
-}
-
-macro_rules! curly__rhs_dollar__no_round {
-    ( $i:ident ) => { ${ count($i) } };
-    //~^ ERROR `count` can not be placed inside the innermost repetition
-}
-
-#[rustfmt::skip] // autoformatters can break a few of the error traces
-macro_rules! no_curly__no_rhs_dollar__round {
-    ( $( $i:ident ),* ) => { count(i) };
-    //~^ ERROR cannot find function `count` in this scope
-    //~| ERROR cannot find value `i` in this scope
-}
-
-#[rustfmt::skip] // autoformatters can break a few of the error traces
-macro_rules! no_curly__no_rhs_dollar__no_round {
-    ( $i:ident ) => { count(i) };
-    //~^ ERROR cannot find function `count` in this scope
-    //~| ERROR cannot find value `i` in this scope
-}
-
-#[rustfmt::skip] // autoformatters can break a few of the error traces
-macro_rules! no_curly__rhs_dollar__round {
-    ( $( $i:ident ),* ) => { count($i) };
-    //~^ ERROR variable `i` is still repeating at this depth
-}
-
-#[rustfmt::skip] // autoformatters can break a few of the error traces
-macro_rules! no_curly__rhs_dollar__no_round {
-    ( $i:ident ) => { count($i) };
-    //~^ ERROR cannot find function `count` in this scope
-}
-
-// Other scenarios
-
-macro_rules! dollar_dollar_in_the_lhs {
-    ( $$ $a:ident ) => {
-        //~^ ERROR unexpected token: $
-    };
-}
-
-macro_rules! extra_garbage_after_metavar {
-    ( $( $i:ident ),* ) => {
-        ${count() a b c}
-        //~^ ERROR unexpected token: a
-        //~| ERROR expected expression, found `$`
-        ${count($i a b c)}
-        //~^ ERROR unexpected token: a
-        ${count($i, 1 a b c)}
-        //~^ ERROR unexpected token: a
-        ${count($i) a b c}
-        //~^ ERROR unexpected token: a
-
-        ${ignore($i) a b c}
-        //~^ ERROR unexpected token: a
-        ${ignore($i a b c)}
-        //~^ ERROR unexpected token: a
-
-        ${index() a b c}
-        //~^ ERROR unexpected token: a
-        ${index(1 a b c)}
-        //~^ ERROR unexpected token: a
-
-        ${index() a b c}
-        //~^ ERROR unexpected token: a
-        ${index(1 a b c)}
-        //~^ ERROR unexpected token: a
-    };
-}
-
-const IDX: usize = 1;
-macro_rules! metavar_depth_is_not_literal {
-    ( $( $i:ident ),* ) => { ${ index(IDX) } };
-    //~^ ERROR meta-variable expression depth must be a literal
-    //~| ERROR expected expression, found `$`
-}
-
-macro_rules! metavar_in_the_lhs {
-    ( ${ len() } ) => {
-        //~^ ERROR unexpected token: {
-        //~| ERROR expected one of: `*`, `+`, or `?`
-    };
-}
-
-macro_rules! metavar_token_without_ident {
-    ( $( $i:ident ),* ) => { ${ ignore() } };
-    //~^ ERROR meta-variable expressions must be referenced using a dollar sign
-    //~| ERROR expected expression
-}
-
-macro_rules! metavar_with_literal_suffix {
-    ( $( $i:ident ),* ) => { ${ index(1u32) } };
-    //~^ ERROR only unsuffixes integer literals are supported in meta-variable expressions
-    //~| ERROR expected expression, found `$`
-}
-
-macro_rules! metavar_without_parens {
-    ( $( $i:ident ),* ) => { ${ count{i} } };
-    //~^ ERROR meta-variable expression parameter must be wrapped in parentheses
-    //~| ERROR expected expression, found `$`
-}
-
-#[rustfmt::skip]
-macro_rules! open_brackets_without_tokens {
-    ( $( $i:ident ),* ) => { ${ {} } };
-    //~^ ERROR expected expression, found `$`
-    //~| ERROR expected identifier
-}
-
-macro_rules! unknown_count_ident {
-    ( $( $i:ident )* ) => {
-        ${count(foo)}
-        //~^ ERROR meta-variable expressions must be referenced using a dollar sign
-        //~| ERROR expected expression
-    };
-}
-
-macro_rules! unknown_ignore_ident {
-    ( $( $i:ident )* ) => {
-        ${ignore(bar)}
-        //~^ ERROR meta-variable expressions must be referenced using a dollar sign
-        //~| ERROR expected expression
-    };
-}
-
-macro_rules! unknown_metavar {
-    ( $( $i:ident ),* ) => { ${ aaaaaaaaaaaaaa(i) } };
-    //~^ ERROR unrecognized meta-variable expression
-    //~| ERROR expected expression
-}
-
-fn main() {
-    curly__no_rhs_dollar__round!(a, b, c);
-    curly__no_rhs_dollar__no_round!(a);
-    curly__rhs_dollar__no_round!(a);
-    no_curly__no_rhs_dollar__round!(a, b, c);
-    no_curly__no_rhs_dollar__no_round!(a);
-    no_curly__rhs_dollar__round!(a, b, c);
-    no_curly__rhs_dollar__no_round!(a);
-    //~^ ERROR cannot find value `a` in this scope
-
-    extra_garbage_after_metavar!(a);
-    metavar_depth_is_not_literal!(a);
-    metavar_token_without_ident!(a);
-    metavar_with_literal_suffix!(a);
-    metavar_without_parens!(a);
-    open_brackets_without_tokens!(a);
-    unknown_count_ident!(a);
-    unknown_ignore_ident!(a);
-    unknown_metavar!(a);
-}
diff --git a/tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.stderr b/tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.stderr
deleted file mode 100644
index d9646760cea..00000000000
--- a/tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.stderr
+++ /dev/null
@@ -1,382 +0,0 @@
-error: unexpected token: $
-  --> $DIR/syntax-errors.rs:50:8
-   |
-LL |     ( $$ $a:ident ) => {
-   |        ^
-
-note: `$$` and meta-variable expressions are not allowed inside macro parameter definitions
-  --> $DIR/syntax-errors.rs:50:8
-   |
-LL |     ( $$ $a:ident ) => {
-   |        ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:57:19
-   |
-LL |         ${count() a b c}
-   |                   ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:57:19
-   |
-LL |         ${count() a b c}
-   |                   ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:60:20
-   |
-LL |         ${count($i a b c)}
-   |                    ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:60:20
-   |
-LL |         ${count($i a b c)}
-   |                    ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:62:23
-   |
-LL |         ${count($i, 1 a b c)}
-   |                       ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:62:23
-   |
-LL |         ${count($i, 1 a b c)}
-   |                       ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:64:21
-   |
-LL |         ${count($i) a b c}
-   |                     ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:64:21
-   |
-LL |         ${count($i) a b c}
-   |                     ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:67:22
-   |
-LL |         ${ignore($i) a b c}
-   |                      ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:67:22
-   |
-LL |         ${ignore($i) a b c}
-   |                      ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:69:21
-   |
-LL |         ${ignore($i a b c)}
-   |                     ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:69:21
-   |
-LL |         ${ignore($i a b c)}
-   |                     ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:72:19
-   |
-LL |         ${index() a b c}
-   |                   ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:72:19
-   |
-LL |         ${index() a b c}
-   |                   ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:74:19
-   |
-LL |         ${index(1 a b c)}
-   |                   ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:74:19
-   |
-LL |         ${index(1 a b c)}
-   |                   ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:77:19
-   |
-LL |         ${index() a b c}
-   |                   ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:77:19
-   |
-LL |         ${index() a b c}
-   |                   ^
-
-error: unexpected token: a
-  --> $DIR/syntax-errors.rs:79:19
-   |
-LL |         ${index(1 a b c)}
-   |                   ^
-   |
-note: meta-variable expression must not have trailing tokens
-  --> $DIR/syntax-errors.rs:79:19
-   |
-LL |         ${index(1 a b c)}
-   |                   ^
-
-error: meta-variable expression depth must be a literal
-  --> $DIR/syntax-errors.rs:86:33
-   |
-LL |     ( $( $i:ident ),* ) => { ${ index(IDX) } };
-   |                                 ^^^^^
-
-error: unexpected token: {
-  --> $DIR/syntax-errors.rs:92:8
-   |
-LL |     ( ${ len() } ) => {
-   |        ^^^^^^^^^
-
-note: `$$` and meta-variable expressions are not allowed inside macro parameter definitions
-  --> $DIR/syntax-errors.rs:92:8
-   |
-LL |     ( ${ len() } ) => {
-   |        ^^^^^^^^^
-
-error: expected one of: `*`, `+`, or `?`
-  --> $DIR/syntax-errors.rs:92:8
-   |
-LL |     ( ${ len() } ) => {
-   |        ^^^^^^^^^
-
-error: meta-variables within meta-variable expressions must be referenced using a dollar sign
-  --> $DIR/syntax-errors.rs:99:33
-   |
-LL |     ( $( $i:ident ),* ) => { ${ ignore() } };
-   |                                 ^^^^^^
-
-error: only unsuffixes integer literals are supported in meta-variable expressions
-  --> $DIR/syntax-errors.rs:105:33
-   |
-LL |     ( $( $i:ident ),* ) => { ${ index(1u32) } };
-   |                                 ^^^^^
-
-error: meta-variable expression parameter must be wrapped in parentheses
-  --> $DIR/syntax-errors.rs:111:33
-   |
-LL |     ( $( $i:ident ),* ) => { ${ count{i} } };
-   |                                 ^^^^^
-
-error: meta-variables within meta-variable expressions must be referenced using a dollar sign
-  --> $DIR/syntax-errors.rs:125:11
-   |
-LL |         ${count(foo)}
-   |           ^^^^^
-
-error: meta-variables within meta-variable expressions must be referenced using a dollar sign
-  --> $DIR/syntax-errors.rs:133:11
-   |
-LL |         ${ignore(bar)}
-   |           ^^^^^^
-
-error: unrecognized meta-variable expression
-  --> $DIR/syntax-errors.rs:140:33
-   |
-LL |     ( $( $i:ident ),* ) => { ${ aaaaaaaaaaaaaa(i) } };
-   |                                 ^^^^^^^^^^^^^^ help: supported expressions are count, ignore, index and len
-
-error: expected identifier or string literal
-  --> $DIR/syntax-errors.rs:118:33
-   |
-LL |     ( $( $i:ident ),* ) => { ${ {} } };
-   |                                 ^^
-
-error: `count` can not be placed inside the innermost repetition
-  --> $DIR/syntax-errors.rs:12:24
-   |
-LL |     ( $i:ident ) => { ${ count($i) } };
-   |                        ^^^^^^^^^^^^^
-
-error: `count` can not be placed inside the innermost repetition
-  --> $DIR/syntax-errors.rs:17:24
-   |
-LL |     ( $i:ident ) => { ${ count($i) } };
-   |                        ^^^^^^^^^^^^^
-
-error: variable `i` is still repeating at this depth
-  --> $DIR/syntax-errors.rs:37:36
-   |
-LL |     ( $( $i:ident ),* ) => { count($i) };
-   |                                    ^^
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:57:9
-   |
-LL |         ${count() a b c}
-   |         ^ expected expression
-...
-LL |     extra_garbage_after_metavar!(a);
-   |     ------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `extra_garbage_after_metavar` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:86:30
-   |
-LL |     ( $( $i:ident ),* ) => { ${ index(IDX) } };
-   |                              ^ expected expression
-...
-LL |     metavar_depth_is_not_literal!(a);
-   |     -------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `metavar_depth_is_not_literal` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:99:30
-   |
-LL |     ( $( $i:ident ),* ) => { ${ ignore() } };
-   |                              ^ expected expression
-...
-LL |     metavar_token_without_ident!(a);
-   |     ------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `metavar_token_without_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:105:30
-   |
-LL |     ( $( $i:ident ),* ) => { ${ index(1u32) } };
-   |                              ^ expected expression
-...
-LL |     metavar_with_literal_suffix!(a);
-   |     ------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `metavar_with_literal_suffix` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:111:30
-   |
-LL |     ( $( $i:ident ),* ) => { ${ count{i} } };
-   |                              ^ expected expression
-...
-LL |     metavar_without_parens!(a);
-   |     -------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `metavar_without_parens` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:118:30
-   |
-LL |     ( $( $i:ident ),* ) => { ${ {} } };
-   |                              ^ expected expression
-...
-LL |     open_brackets_without_tokens!(a);
-   |     -------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `open_brackets_without_tokens` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:125:9
-   |
-LL |         ${count(foo)}
-   |         ^ expected expression
-...
-LL |     unknown_count_ident!(a);
-   |     ----------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `unknown_count_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:133:9
-   |
-LL |         ${ignore(bar)}
-   |         ^ expected expression
-...
-LL |     unknown_ignore_ident!(a);
-   |     ------------------------ in this macro invocation
-   |
-   = note: this error originates in the macro `unknown_ignore_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: expected expression, found `$`
-  --> $DIR/syntax-errors.rs:140:30
-   |
-LL |     ( $( $i:ident ),* ) => { ${ aaaaaaaaaaaaaa(i) } };
-   |                              ^ expected expression
-...
-LL |     unknown_metavar!(a);
-   |     ------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `unknown_metavar` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error[E0425]: cannot find value `i` in this scope
-  --> $DIR/syntax-errors.rs:23:36
-   |
-LL |     ( $( $i:ident ),* ) => { count(i) };
-   |                                    ^ not found in this scope
-...
-LL |     no_curly__no_rhs_dollar__round!(a, b, c);
-   |     ---------------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `no_curly__no_rhs_dollar__round` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error[E0425]: cannot find value `i` in this scope
-  --> $DIR/syntax-errors.rs:30:29
-   |
-LL |     ( $i:ident ) => { count(i) };
-   |                             ^ not found in this scope
-...
-LL |     no_curly__no_rhs_dollar__no_round!(a);
-   |     ------------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `no_curly__no_rhs_dollar__no_round` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error[E0425]: cannot find value `a` in this scope
-  --> $DIR/syntax-errors.rs:152:37
-   |
-LL |     ( $i:ident ) => { count($i) };
-   |                             -- due to this macro variable
-...
-LL |     no_curly__rhs_dollar__no_round!(a);
-   |                                     ^ not found in this scope
-
-error[E0425]: cannot find function `count` in this scope
-  --> $DIR/syntax-errors.rs:23:30
-   |
-LL |     ( $( $i:ident ),* ) => { count(i) };
-   |                              ^^^^^ not found in this scope
-...
-LL |     no_curly__no_rhs_dollar__round!(a, b, c);
-   |     ---------------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `no_curly__no_rhs_dollar__round` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error[E0425]: cannot find function `count` in this scope
-  --> $DIR/syntax-errors.rs:30:23
-   |
-LL |     ( $i:ident ) => { count(i) };
-   |                       ^^^^^ not found in this scope
-...
-LL |     no_curly__no_rhs_dollar__no_round!(a);
-   |     ------------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `no_curly__no_rhs_dollar__no_round` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error[E0425]: cannot find function `count` in this scope
-  --> $DIR/syntax-errors.rs:43:23
-   |
-LL |     ( $i:ident ) => { count($i) };
-   |                       ^^^^^ not found in this scope
-...
-LL |     no_curly__rhs_dollar__no_round!(a);
-   |     ---------------------------------- in this macro invocation
-   |
-   = note: this error originates in the macro `no_curly__rhs_dollar__no_round` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: aborting due to 39 previous errors
-
-For more information about this error, try `rustc --explain E0425`.
diff --git a/tests/ui/maximal_mir_to_hir_coverage.rs b/tests/ui/maximal_mir_to_hir_coverage.rs
deleted file mode 100644
index e57c83d007e..00000000000
--- a/tests/ui/maximal_mir_to_hir_coverage.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-//@ compile-flags: -Zmaximal-hir-to-mir-coverage
-//@ run-pass
-
-// Just making sure this flag is accepted and doesn't crash the compiler
-
-fn main() {
-  let x = 1;
-  let y = x + 1;
-  println!("{y}");
-}
diff --git a/tests/ui/maybe-bounds.rs b/tests/ui/maybe-bounds.rs
deleted file mode 100644
index 02ed45c656f..00000000000
--- a/tests/ui/maybe-bounds.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-trait Tr: ?Sized {}
-//~^ ERROR `?Trait` is not permitted in supertraits
-
-type A1 = dyn Tr + (?Sized);
-//~^ ERROR `?Trait` is not permitted in trait object types
-type A2 = dyn for<'a> Tr + (?Sized);
-//~^ ERROR `?Trait` is not permitted in trait object types
-
-fn main() {}
diff --git a/tests/ui/method-output-diff-issue-127263.rs b/tests/ui/method-output-diff-issue-127263.rs
deleted file mode 100644
index 85a903e2453..00000000000
--- a/tests/ui/method-output-diff-issue-127263.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-fn bar() {}
-fn foo(x: i32) -> u32 {
-    0
-}
-fn main() {
-    let b: fn() -> u32 = bar; //~ ERROR mismatched types [E0308]
-    let f: fn(i32) = foo; //~ ERROR mismatched types [E0308]
-}
diff --git a/tests/ui/methods/filter-relevant-fn-bounds.rs b/tests/ui/methods/filter-relevant-fn-bounds.rs
index 76ececf7baa..6233c9db53a 100644
--- a/tests/ui/methods/filter-relevant-fn-bounds.rs
+++ b/tests/ui/methods/filter-relevant-fn-bounds.rs
@@ -7,11 +7,10 @@ struct Wrapper;
 impl Wrapper {
     fn do_something_wrapper<O, F>(self, _: F)
     //~^ ERROR the trait bound `for<'a> F: Output<'a>` is not satisfied
-    //~| ERROR the trait bound `for<'a> F: Output<'a>` is not satisfied
     where
         F: for<'a> FnOnce(<F as Output<'a>>::Type),
-        //~^ ERROR the trait bound `F: Output<'_>` is not satisfied
-        //~| ERROR the trait bound `F: Output<'_>` is not satisfied
+        //~^ ERROR the trait bound `for<'a> F: Output<'a>` is not satisfied
+        //~| ERROR the trait bound `for<'a> F: Output<'a>` is not satisfied
     {
     }
 }
diff --git a/tests/ui/methods/filter-relevant-fn-bounds.stderr b/tests/ui/methods/filter-relevant-fn-bounds.stderr
index 0e00adf6ea6..82103e62ddf 100644
--- a/tests/ui/methods/filter-relevant-fn-bounds.stderr
+++ b/tests/ui/methods/filter-relevant-fn-bounds.stderr
@@ -3,7 +3,6 @@ error[E0277]: the trait bound `for<'a> F: Output<'a>` is not satisfied
    |
 LL | /     fn do_something_wrapper<O, F>(self, _: F)
 LL | |
-LL | |
 LL | |     where
 LL | |         F: for<'a> FnOnce(<F as Output<'a>>::Type),
    | |___________________________________________________^ the trait `for<'a> Output<'a>` is not implemented for `F`
@@ -14,54 +13,43 @@ LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type) + for<'a> Output<'a>,
    |                                                    ++++++++++++++++++++
 
 error[E0277]: the trait bound `for<'a> F: Output<'a>` is not satisfied
-  --> $DIR/filter-relevant-fn-bounds.rs:8:8
+  --> $DIR/filter-relevant-fn-bounds.rs:11:12
    |
-LL |     fn do_something_wrapper<O, F>(self, _: F)
-   |        ^^^^^^^^^^^^^^^^^^^^ the trait `for<'a> Output<'a>` is not implemented for `F`
+LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type),
+   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `for<'a> Output<'a>` is not implemented for `F`
    |
 help: consider further restricting type parameter `F` with trait `Output`
    |
 LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type) + for<'a> Output<'a>,
    |                                                    ++++++++++++++++++++
 
-error[E0277]: the trait bound `F: Output<'_>` is not satisfied
-  --> $DIR/filter-relevant-fn-bounds.rs:12:12
-   |
-LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type),
-   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Output<'_>` is not implemented for `F`
-   |
-help: consider further restricting type parameter `F` with trait `Output`
-   |
-LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type) + Output<'_>,
-   |                                                    ++++++++++++
-
-error[E0277]: the trait bound `F: Output<'_>` is not satisfied
-  --> $DIR/filter-relevant-fn-bounds.rs:12:20
+error[E0277]: the trait bound `for<'a> F: Output<'a>` is not satisfied
+  --> $DIR/filter-relevant-fn-bounds.rs:11:20
    |
 LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type),
-   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Output<'_>` is not implemented for `F`
+   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `for<'a> Output<'a>` is not implemented for `F`
    |
 help: consider further restricting type parameter `F` with trait `Output`
    |
-LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type) + Output<'_>,
-   |                                                    ++++++++++++
+LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type) + for<'a> Output<'a>,
+   |                                                    ++++++++++++++++++++
 
-error[E0277]: expected a `FnOnce(<{closure@$DIR/filter-relevant-fn-bounds.rs:21:34: 21:41} as Output<'a>>::Type)` closure, found `{closure@$DIR/filter-relevant-fn-bounds.rs:21:34: 21:41}`
-  --> $DIR/filter-relevant-fn-bounds.rs:21:34
+error[E0277]: expected a `FnOnce(<{closure@$DIR/filter-relevant-fn-bounds.rs:20:34: 20:41} as Output<'a>>::Type)` closure, found `{closure@$DIR/filter-relevant-fn-bounds.rs:20:34: 20:41}`
+  --> $DIR/filter-relevant-fn-bounds.rs:20:34
    |
 LL |     wrapper.do_something_wrapper(|value| ());
-   |             -------------------- ^^^^^^^^^^ expected an `FnOnce(<{closure@$DIR/filter-relevant-fn-bounds.rs:21:34: 21:41} as Output<'a>>::Type)` closure, found `{closure@$DIR/filter-relevant-fn-bounds.rs:21:34: 21:41}`
+   |             -------------------- ^^^^^^^^^^ expected an `FnOnce(<{closure@$DIR/filter-relevant-fn-bounds.rs:20:34: 20:41} as Output<'a>>::Type)` closure, found `{closure@$DIR/filter-relevant-fn-bounds.rs:20:34: 20:41}`
    |             |
    |             required by a bound introduced by this call
    |
-   = help: the trait `for<'a> Output<'a>` is not implemented for closure `{closure@$DIR/filter-relevant-fn-bounds.rs:21:34: 21:41}`
+   = help: the trait `for<'a> Output<'a>` is not implemented for closure `{closure@$DIR/filter-relevant-fn-bounds.rs:20:34: 20:41}`
 help: this trait has no implementations, consider adding one
   --> $DIR/filter-relevant-fn-bounds.rs:1:1
    |
 LL | trait Output<'a> {
    | ^^^^^^^^^^^^^^^^
 note: required by a bound in `Wrapper::do_something_wrapper`
-  --> $DIR/filter-relevant-fn-bounds.rs:12:12
+  --> $DIR/filter-relevant-fn-bounds.rs:11:12
    |
 LL |     fn do_something_wrapper<O, F>(self, _: F)
    |        -------------------- required by a bound in this associated function
@@ -69,6 +57,6 @@ LL |     fn do_something_wrapper<O, F>(self, _: F)
 LL |         F: for<'a> FnOnce(<F as Output<'a>>::Type),
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Wrapper::do_something_wrapper`
 
-error: aborting due to 5 previous errors
+error: aborting due to 4 previous errors
 
 For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.rs b/tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.rs
new file mode 100644
index 00000000000..e28ca3e55b5
--- /dev/null
+++ b/tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.rs
@@ -0,0 +1,16 @@
+//! This test checks that when there's a type mismatch between a function item and
+//! a function pointer, the error message focuses on the actual type difference
+//! (return types, argument types) rather than the confusing "pointer vs item" distinction.
+//!
+//! See https://github.com/rust-lang/rust/issues/127263
+
+fn bar() {}
+
+fn foo(x: i32) -> u32 {
+    0
+}
+
+fn main() {
+    let b: fn() -> u32 = bar; //~ ERROR mismatched types [E0308]
+    let f: fn(i32) = foo; //~ ERROR mismatched types [E0308]
+}
diff --git a/tests/ui/method-output-diff-issue-127263.stderr b/tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.stderr
index 35b86114f16..8d63f2ea2d3 100644
--- a/tests/ui/method-output-diff-issue-127263.stderr
+++ b/tests/ui/mismatched_types/fn-pointer-mismatch-diagnostics.stderr
@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/method-output-diff-issue-127263.rs:6:26
+  --> $DIR/fn-pointer-mismatch-diagnostics.rs:14:26
    |
 LL |     let b: fn() -> u32 = bar;
    |            -----------   ^^^ expected fn pointer, found fn item
@@ -10,7 +10,7 @@ LL |     let b: fn() -> u32 = bar;
                  found fn item `fn() -> () {bar}`
 
 error[E0308]: mismatched types
-  --> $DIR/method-output-diff-issue-127263.rs:7:22
+  --> $DIR/fn-pointer-mismatch-diagnostics.rs:15:22
    |
 LL |     let f: fn(i32) = foo;
    |            -------   ^^^ expected fn pointer, found fn item
diff --git a/tests/ui/integral-variable-unification-error.rs b/tests/ui/mismatched_types/int-float-type-mismatch.rs
index 8d1621321e8..b45d02730d9 100644
--- a/tests/ui/integral-variable-unification-error.rs
+++ b/tests/ui/mismatched_types/int-float-type-mismatch.rs
@@ -1,3 +1,6 @@
+//! Check that a type mismatch error is reported when trying
+//! to unify a {float} value assignment to an {integer} variable.
+
 fn main() {
     let mut x //~ NOTE expected due to the type of this binding
         =
diff --git a/tests/ui/integral-variable-unification-error.stderr b/tests/ui/mismatched_types/int-float-type-mismatch.stderr
index 1caa6042fd2..43b8609a49d 100644
--- a/tests/ui/integral-variable-unification-error.stderr
+++ b/tests/ui/mismatched_types/int-float-type-mismatch.stderr
@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/integral-variable-unification-error.rs:5:9
+  --> $DIR/int-float-type-mismatch.rs:8:9
    |
 LL |     let mut x
    |         ----- expected due to the type of this binding
diff --git a/tests/ui/mod-subitem-as-enum-variant.rs b/tests/ui/mod-subitem-as-enum-variant.rs
deleted file mode 100644
index 959024c46f4..00000000000
--- a/tests/ui/mod-subitem-as-enum-variant.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-mod Mod {
-    pub struct FakeVariant<T>(pub T);
-}
-
-fn main() {
-    Mod::FakeVariant::<i32>(0);
-    Mod::<i32>::FakeVariant(0);
-    //~^ ERROR type arguments are not allowed on module `Mod` [E0109]
-}
diff --git a/tests/ui/modules/nested-modules-basic.rs b/tests/ui/modules/nested-modules-basic.rs
new file mode 100644
index 00000000000..12eccec2808
--- /dev/null
+++ b/tests/ui/modules/nested-modules-basic.rs
@@ -0,0 +1,19 @@
+//! Basic test for nested module functionality and path resolution
+
+//@ run-pass
+
+mod inner {
+    pub mod inner2 {
+        pub fn hello() {
+            println!("hello, modular world");
+        }
+    }
+    pub fn hello() {
+        inner2::hello();
+    }
+}
+
+pub fn main() {
+    inner::hello();
+    inner::inner2::hello();
+}
diff --git a/tests/ui/monomorphize-abi-alignment.rs b/tests/ui/monomorphize-abi-alignment.rs
deleted file mode 100644
index 62df1aca357..00000000000
--- a/tests/ui/monomorphize-abi-alignment.rs
+++ /dev/null
@@ -1,35 +0,0 @@
-//@ run-pass
-
-#![allow(non_upper_case_globals)]
-#![allow(dead_code)]
-/*!
- * On x86_64-linux-gnu and possibly other platforms, structs get 8-byte "preferred" alignment,
- * but their "ABI" alignment (i.e., what actually matters for data layout) is the largest alignment
- * of any field. (Also, `u64` has 8-byte ABI alignment; this is not always true).
- *
- * On such platforms, if monomorphize uses the "preferred" alignment, then it will unify
- * `A` and `B`, even though `S<A>` and `S<B>` have the field `t` at different offsets,
- * and apply the wrong instance of the method `unwrap`.
- */
-
-#[derive(Copy, Clone)]
-struct S<T> { i:u8, t:T }
-
-impl<T> S<T> {
-    fn unwrap(self) -> T {
-        self.t
-    }
-}
-
-#[derive(Copy, Clone, PartialEq, Debug)]
-struct A((u32, u32));
-
-#[derive(Copy, Clone, PartialEq, Debug)]
-struct B(u64);
-
-pub fn main() {
-    static Ca: S<A> = S { i: 0, t: A((13, 104)) };
-    static Cb: S<B> = S { i: 0, t: B(31337) };
-    assert_eq!(Ca.unwrap(), A((13, 104)));
-    assert_eq!(Cb.unwrap(), B(31337));
-}
diff --git a/tests/ui/msvc-data-only.rs b/tests/ui/msvc-data-only.rs
deleted file mode 100644
index 15d799085fe..00000000000
--- a/tests/ui/msvc-data-only.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-//@ run-pass
-//@ aux-build:msvc-data-only-lib.rs
-
-extern crate msvc_data_only_lib;
-
-fn main() {
-    println!("The answer is {} !", msvc_data_only_lib::FOO);
-}
diff --git a/tests/ui/msvc-opt-minsize.rs b/tests/ui/msvc-opt-minsize.rs
deleted file mode 100644
index c1be168a05d..00000000000
--- a/tests/ui/msvc-opt-minsize.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-// A previously outdated version of LLVM caused compilation failures on Windows
-// specifically with optimization level `z`. After the update to a more recent LLVM
-// version, this test checks that compilation and execution both succeed.
-// See https://github.com/rust-lang/rust/issues/45034
-
-//@ ignore-cross-compile
-// Reason: the compiled binary is executed
-//@ only-windows
-// Reason: the observed bug only occurs on Windows
-//@ run-pass
-//@ compile-flags: -C opt-level=z
-
-#![feature(test)]
-extern crate test;
-
-fn foo(x: i32, y: i32) -> i64 {
-    (x + y) as i64
-}
-
-#[inline(never)]
-fn bar() {
-    let _f = Box::new(0);
-    // This call used to trigger an LLVM bug in opt-level z where the base
-    // pointer gets corrupted, see issue #45034
-    let y: fn(i32, i32) -> i64 = test::black_box(foo);
-    test::black_box(y(1, 2));
-}
-
-fn main() {
-    bar();
-}
diff --git a/tests/ui/multibyte.rs b/tests/ui/multibyte.rs
deleted file mode 100644
index d585a791fb9..00000000000
--- a/tests/ui/multibyte.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-//@ run-pass
-//
-
-// Test that multibyte characters don't crash the compiler
-pub fn main() {
-    println!("마이너스 사인이 없으면");
-}
diff --git a/tests/ui/multiline-comment.rs b/tests/ui/multiline-comment.rs
deleted file mode 100644
index 98174882032..00000000000
--- a/tests/ui/multiline-comment.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-//@ run-pass
-
-/*
- * This is a multi-line oldcomment.
- */
-pub fn main() { }
diff --git a/tests/ui/new-import-syntax.rs b/tests/ui/new-import-syntax.rs
deleted file mode 100644
index 547900fab61..00000000000
--- a/tests/ui/new-import-syntax.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-//@ run-pass
-
-pub fn main() {
-    println!("Hello world!");
-}
diff --git a/tests/ui/new-style-constants.rs b/tests/ui/new-style-constants.rs
deleted file mode 100644
index e33a2da3878..00000000000
--- a/tests/ui/new-style-constants.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-//@ run-pass
-
-static FOO: isize = 3;
-
-pub fn main() {
-    println!("{}", FOO);
-}
diff --git a/tests/ui/newlambdas.rs b/tests/ui/newlambdas.rs
deleted file mode 100644
index 75e851fb73a..00000000000
--- a/tests/ui/newlambdas.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-//@ run-pass
-// Tests for the new |args| expr lambda syntax
-
-
-fn f<F>(i: isize, f: F) -> isize where F: FnOnce(isize) -> isize { f(i) }
-
-fn g<G>(_g: G) where G: FnOnce() { }
-
-pub fn main() {
-    assert_eq!(f(10, |a| a), 10);
-    g(||());
-    assert_eq!(f(10, |a| a), 10);
-    g(||{});
-}
diff --git a/tests/ui/newtype-polymorphic.rs b/tests/ui/newtype-polymorphic.rs
deleted file mode 100644
index 146d49fdf68..00000000000
--- a/tests/ui/newtype-polymorphic.rs
+++ /dev/null
@@ -1,27 +0,0 @@
-//@ run-pass
-
-#![allow(non_camel_case_types)]
-
-
-#[derive(Clone)]
-struct myvec<X>(Vec<X> );
-
-fn myvec_deref<X:Clone>(mv: myvec<X>) -> Vec<X> {
-    let myvec(v) = mv;
-    return v.clone();
-}
-
-fn myvec_elt<X>(mv: myvec<X>) -> X {
-    let myvec(v) = mv;
-    return v.into_iter().next().unwrap();
-}
-
-pub fn main() {
-    let mv = myvec(vec![1, 2, 3]);
-    let mv_clone = mv.clone();
-    let mv_clone = myvec_deref(mv_clone);
-    assert_eq!(mv_clone[1], 2);
-    assert_eq!(myvec_elt(mv.clone()), 1);
-    let myvec(v) = mv;
-    assert_eq!(v[2], 3);
-}
diff --git a/tests/ui/newtype.rs b/tests/ui/newtype.rs
deleted file mode 100644
index 8a07c67eb4f..00000000000
--- a/tests/ui/newtype.rs
+++ /dev/null
@@ -1,23 +0,0 @@
-//@ run-pass
-
-#![allow(non_camel_case_types)]
-#[derive(Copy, Clone)]
-struct mytype(Mytype);
-
-#[derive(Copy, Clone)]
-struct Mytype {
-    compute: fn(mytype) -> isize,
-    val: isize,
-}
-
-fn compute(i: mytype) -> isize {
-    let mytype(m) = i;
-    return m.val + 20;
-}
-
-pub fn main() {
-    let myval = mytype(Mytype{compute: compute, val: 30});
-    println!("{}", compute(myval));
-    let mytype(m) = myval;
-    assert_eq!((m.compute)(myval), 50);
-}
diff --git a/tests/ui/no-core-1.rs b/tests/ui/no-core-1.rs
deleted file mode 100644
index d6d2ba60445..00000000000
--- a/tests/ui/no-core-1.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-//@ run-pass
-
-#![allow(stable_features)]
-#![feature(no_core, core)]
-#![no_core]
-
-extern crate std;
-extern crate core;
-
-use std::option::Option::Some;
-
-fn main() {
-    let a = Some("foo");
-    a.unwrap();
-}
diff --git a/tests/ui/no-core-2.rs b/tests/ui/no-core-2.rs
deleted file mode 100644
index 2f55365bdd0..00000000000
--- a/tests/ui/no-core-2.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-//@ run-pass
-
-#![allow(dead_code, unused_imports)]
-#![feature(no_core)]
-#![no_core]
-//@ edition:2018
-
-extern crate std;
-extern crate core;
-use core::{prelude::v1::*, *};
-
-fn foo() {
-    for _ in &[()] {}
-}
-
-fn bar() -> Option<()> {
-    None?
-}
-
-fn main() {}
diff --git a/tests/ui/no-warn-on-field-replace-issue-34101.rs b/tests/ui/no-warn-on-field-replace-issue-34101.rs
deleted file mode 100644
index e1d5e9c5268..00000000000
--- a/tests/ui/no-warn-on-field-replace-issue-34101.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-// Issue 34101: Circa 2016-06-05, `fn inline` below issued an
-// erroneous warning from the elaborate_drops pass about moving out of
-// a field in `Foo`, which has a destructor (and thus cannot have
-// content moved out of it). The reason that the warning is erroneous
-// in this case is that we are doing a *replace*, not a move, of the
-// content in question, and it is okay to replace fields within `Foo`.
-//
-// Another more subtle problem was that the elaborate_drops was
-// creating a separate drop flag for that internally replaced content,
-// even though the compiler should enforce an invariant that any drop
-// flag for such subcontent of `Foo` will always have the same value
-// as the drop flag for `Foo` itself.
-
-
-
-
-
-
-
-
-//@ check-pass
-
-struct Foo(String);
-
-impl Drop for Foo {
-    fn drop(&mut self) {}
-}
-
-fn inline() {
-    // (dummy variable so `f` gets assigned `var1` in MIR for both fn's)
-    let _s = ();
-    let mut f = Foo(String::from("foo"));
-    f.0 = String::from("bar");
-}
-
-fn outline() {
-    let _s = String::from("foo");
-    let mut f = Foo(_s);
-    f.0 = String::from("bar");
-}
-
-
-fn main() {
-    inline();
-    outline();
-}
diff --git a/tests/ui/no_send-enum.rs b/tests/ui/no_send-enum.rs
deleted file mode 100644
index bd560649b99..00000000000
--- a/tests/ui/no_send-enum.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-#![feature(negative_impls)]
-
-use std::marker::Send;
-
-struct NoSend;
-impl !Send for NoSend {}
-
-enum Foo {
-    A(NoSend)
-}
-
-fn bar<T: Send>(_: T) {}
-
-fn main() {
-    let x = Foo::A(NoSend);
-    bar(x);
-    //~^ ERROR `NoSend` cannot be sent between threads safely
-}
diff --git a/tests/ui/no_send-enum.stderr b/tests/ui/no_send-enum.stderr
deleted file mode 100644
index 3b66c7db545..00000000000
--- a/tests/ui/no_send-enum.stderr
+++ /dev/null
@@ -1,23 +0,0 @@
-error[E0277]: `NoSend` cannot be sent between threads safely
-  --> $DIR/no_send-enum.rs:16:9
-   |
-LL |     bar(x);
-   |     --- ^ `NoSend` cannot be sent between threads safely
-   |     |
-   |     required by a bound introduced by this call
-   |
-   = help: within `Foo`, the trait `Send` is not implemented for `NoSend`
-note: required because it appears within the type `Foo`
-  --> $DIR/no_send-enum.rs:8:6
-   |
-LL | enum Foo {
-   |      ^^^
-note: required by a bound in `bar`
-  --> $DIR/no_send-enum.rs:12:11
-   |
-LL | fn bar<T: Send>(_: T) {}
-   |           ^^^^ required by this bound in `bar`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/no_send-rc.rs b/tests/ui/no_send-rc.rs
deleted file mode 100644
index f31db15ef2e..00000000000
--- a/tests/ui/no_send-rc.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-use std::rc::Rc;
-
-fn bar<T: Send>(_: T) {}
-
-fn main() {
-    let x = Rc::new(5);
-    bar(x);
-    //~^ ERROR `Rc<{integer}>` cannot be sent between threads safely
-}
diff --git a/tests/ui/no_send-rc.stderr b/tests/ui/no_send-rc.stderr
deleted file mode 100644
index 1430a7a29ea..00000000000
--- a/tests/ui/no_send-rc.stderr
+++ /dev/null
@@ -1,22 +0,0 @@
-error[E0277]: `Rc<{integer}>` cannot be sent between threads safely
-  --> $DIR/no_send-rc.rs:7:9
-   |
-LL |     bar(x);
-   |     --- ^ `Rc<{integer}>` cannot be sent between threads safely
-   |     |
-   |     required by a bound introduced by this call
-   |
-   = help: the trait `Send` is not implemented for `Rc<{integer}>`
-note: required by a bound in `bar`
-  --> $DIR/no_send-rc.rs:3:11
-   |
-LL | fn bar<T: Send>(_: T) {}
-   |           ^^^^ required by this bound in `bar`
-help: consider dereferencing here
-   |
-LL |     bar(*x);
-   |         +
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/no_share-enum.rs b/tests/ui/no_share-enum.rs
deleted file mode 100644
index 44bf1913e7a..00000000000
--- a/tests/ui/no_share-enum.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-#![feature(negative_impls)]
-
-use std::marker::Sync;
-
-struct NoSync;
-impl !Sync for NoSync {}
-
-enum Foo { A(NoSync) }
-
-fn bar<T: Sync>(_: T) {}
-
-fn main() {
-    let x = Foo::A(NoSync);
-    bar(x);
-    //~^ ERROR `NoSync` cannot be shared between threads safely [E0277]
-}
diff --git a/tests/ui/no_share-enum.stderr b/tests/ui/no_share-enum.stderr
deleted file mode 100644
index 89939216d5b..00000000000
--- a/tests/ui/no_share-enum.stderr
+++ /dev/null
@@ -1,23 +0,0 @@
-error[E0277]: `NoSync` cannot be shared between threads safely
-  --> $DIR/no_share-enum.rs:14:9
-   |
-LL |     bar(x);
-   |     --- ^ `NoSync` cannot be shared between threads safely
-   |     |
-   |     required by a bound introduced by this call
-   |
-   = help: within `Foo`, the trait `Sync` is not implemented for `NoSync`
-note: required because it appears within the type `Foo`
-  --> $DIR/no_share-enum.rs:8:6
-   |
-LL | enum Foo { A(NoSync) }
-   |      ^^^
-note: required by a bound in `bar`
-  --> $DIR/no_share-enum.rs:10:11
-   |
-LL | fn bar<T: Sync>(_: T) {}
-   |           ^^^^ required by this bound in `bar`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/no_share-struct.rs b/tests/ui/no_share-struct.rs
deleted file mode 100644
index 7d8a36a76f2..00000000000
--- a/tests/ui/no_share-struct.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-#![feature(negative_impls)]
-
-use std::marker::Sync;
-
-struct Foo { a: isize }
-impl !Sync for Foo {}
-
-fn bar<T: Sync>(_: T) {}
-
-fn main() {
-    let x = Foo { a: 5 };
-    bar(x);
-    //~^ ERROR `Foo` cannot be shared between threads safely [E0277]
-}
diff --git a/tests/ui/no_share-struct.stderr b/tests/ui/no_share-struct.stderr
deleted file mode 100644
index 9c7a921b8d8..00000000000
--- a/tests/ui/no_share-struct.stderr
+++ /dev/null
@@ -1,18 +0,0 @@
-error[E0277]: `Foo` cannot be shared between threads safely
-  --> $DIR/no_share-struct.rs:12:9
-   |
-LL |     bar(x);
-   |     --- ^ `Foo` cannot be shared between threads safely
-   |     |
-   |     required by a bound introduced by this call
-   |
-   = help: the trait `Sync` is not implemented for `Foo`
-note: required by a bound in `bar`
-  --> $DIR/no_share-struct.rs:8:11
-   |
-LL | fn bar<T: Sync>(_: T) {}
-   |           ^^^^ required by this bound in `bar`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/no_std/no-core-edition2018-syntax.rs b/tests/ui/no_std/no-core-edition2018-syntax.rs
new file mode 100644
index 00000000000..9a327e4c8e3
--- /dev/null
+++ b/tests/ui/no_std/no-core-edition2018-syntax.rs
@@ -0,0 +1,28 @@
+//! Test that `#![no_core]` doesn't break modern Rust syntax in edition 2018.
+//!
+//! When you use `#![no_core]`, you lose the automatic prelude, but you can still
+//! get everything back by manually importing `use core::{prelude::v1::*, *}`.
+//! This test makes sure that after doing that, things like `for` loops and the
+//! `?` operator still work as expected.
+
+//@ run-pass
+//@ edition:2018
+
+#![allow(dead_code, unused_imports)]
+#![feature(no_core)]
+#![no_core]
+
+extern crate core;
+extern crate std;
+use core::prelude::v1::*;
+use core::*;
+
+fn test_for_loop() {
+    for _ in &[()] {}
+}
+
+fn test_question_mark_operator() -> Option<()> {
+    None?
+}
+
+fn main() {}
diff --git a/tests/ui/no_std/no-core-with-explicit-std-core.rs b/tests/ui/no_std/no-core-with-explicit-std-core.rs
new file mode 100644
index 00000000000..3940bcb3aa4
--- /dev/null
+++ b/tests/ui/no_std/no-core-with-explicit-std-core.rs
@@ -0,0 +1,21 @@
+//! Test that you can use `#![no_core]` and still import std and core manually.
+//!
+//! The `#![no_core]` attribute disables the automatic core prelude, but you should
+//! still be able to explicitly import both `std` and `core` crates and use types
+//! like `Option` normally.
+
+//@ run-pass
+
+#![allow(stable_features)]
+#![feature(no_core, core)]
+#![no_core]
+
+extern crate core;
+extern crate std;
+
+use std::option::Option::Some;
+
+fn main() {
+    let a = Some("foo");
+    a.unwrap();
+}
diff --git a/tests/ui/noexporttypeexe.stderr b/tests/ui/noexporttypeexe.stderr
deleted file mode 100644
index 59759b696c7..00000000000
--- a/tests/ui/noexporttypeexe.stderr
+++ /dev/null
@@ -1,18 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/noexporttypeexe.rs:10:18
-   |
-LL |   let x: isize = noexporttypelib::foo();
-   |          -----   ^^^^^^^^^^^^^^^^^^^^^^ expected `isize`, found `Option<isize>`
-   |          |
-   |          expected due to this
-   |
-   = note: expected type `isize`
-              found enum `Option<isize>`
-help: consider using `Option::expect` to unwrap the `Option<isize>` value, panicking if the value is an `Option::None`
-   |
-LL |   let x: isize = noexporttypelib::foo().expect("REASON");
-   |                                        +++++++++++++++++
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/non-constant-expr-for-arr-len.rs b/tests/ui/non-constant-expr-for-arr-len.rs
deleted file mode 100644
index 1b101d3233f..00000000000
--- a/tests/ui/non-constant-expr-for-arr-len.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-// Check that non constant exprs fail for array repeat syntax
-
-fn main() {
-    fn bar(n: usize) {
-        let _x = [0; n];
-        //~^ ERROR attempt to use a non-constant value in a constant [E0435]
-    }
-}
diff --git a/tests/ui/nonscalar-cast.fixed b/tests/ui/nonscalar-cast.fixed
deleted file mode 100644
index cb5591dbb9d..00000000000
--- a/tests/ui/nonscalar-cast.fixed
+++ /dev/null
@@ -1,16 +0,0 @@
-//@ run-rustfix
-
-#[derive(Debug)]
-struct Foo {
-    x: isize
-}
-
-impl From<Foo> for isize {
-    fn from(val: Foo) -> isize {
-        val.x
-    }
-}
-
-fn main() {
-    println!("{}", isize::from(Foo { x: 1 })); //~ ERROR non-primitive cast: `Foo` as `isize` [E0605]
-}
diff --git a/tests/ui/nonscalar-cast.rs b/tests/ui/nonscalar-cast.rs
deleted file mode 100644
index 27429b44cd0..00000000000
--- a/tests/ui/nonscalar-cast.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-//@ run-rustfix
-
-#[derive(Debug)]
-struct Foo {
-    x: isize
-}
-
-impl From<Foo> for isize {
-    fn from(val: Foo) -> isize {
-        val.x
-    }
-}
-
-fn main() {
-    println!("{}", Foo { x: 1 } as isize); //~ ERROR non-primitive cast: `Foo` as `isize` [E0605]
-}
diff --git a/tests/ui/nonscalar-cast.stderr b/tests/ui/nonscalar-cast.stderr
deleted file mode 100644
index 834d4ea241c..00000000000
--- a/tests/ui/nonscalar-cast.stderr
+++ /dev/null
@@ -1,15 +0,0 @@
-error[E0605]: non-primitive cast: `Foo` as `isize`
-  --> $DIR/nonscalar-cast.rs:15:20
-   |
-LL |     println!("{}", Foo { x: 1 } as isize);
-   |                    ^^^^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-   |
-help: consider using the `From` trait instead
-   |
-LL -     println!("{}", Foo { x: 1 } as isize);
-LL +     println!("{}", isize::from(Foo { x: 1 }));
-   |
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0605`.
diff --git a/tests/ui/not-clone-closure.rs b/tests/ui/not-clone-closure.rs
deleted file mode 100644
index 976e3b9e81c..00000000000
--- a/tests/ui/not-clone-closure.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-//@compile-flags: --diagnostic-width=300
-// Check that closures do not implement `Clone` if their environment is not `Clone`.
-
-struct S(i32);
-
-fn main() {
-    let a = S(5);
-    let hello = move || {
-        println!("Hello {}", a.0);
-    };
-
-    let hello = hello.clone(); //~ ERROR the trait bound `S: Clone` is not satisfied
-}
diff --git a/tests/ui/not-clone-closure.stderr b/tests/ui/not-clone-closure.stderr
deleted file mode 100644
index 0c95a99d0c0..00000000000
--- a/tests/ui/not-clone-closure.stderr
+++ /dev/null
@@ -1,23 +0,0 @@
-error[E0277]: the trait bound `S: Clone` is not satisfied in `{closure@$DIR/not-clone-closure.rs:8:17: 8:24}`
-  --> $DIR/not-clone-closure.rs:12:23
-   |
-LL |     let hello = move || {
-   |                 ------- within this `{closure@$DIR/not-clone-closure.rs:8:17: 8:24}`
-...
-LL |     let hello = hello.clone();
-   |                       ^^^^^ within `{closure@$DIR/not-clone-closure.rs:8:17: 8:24}`, the trait `Clone` is not implemented for `S`
-   |
-note: required because it's used within this closure
-  --> $DIR/not-clone-closure.rs:8:17
-   |
-LL |     let hello = move || {
-   |                 ^^^^^^^
-help: consider annotating `S` with `#[derive(Clone)]`
-   |
-LL + #[derive(Clone)]
-LL | struct S(i32);
-   |
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/parser/bad-lit-suffixes.rs b/tests/ui/parser/bad-lit-suffixes.rs
index 4e8edf4d46e..0a01bb84f01 100644
--- a/tests/ui/parser/bad-lit-suffixes.rs
+++ b/tests/ui/parser/bad-lit-suffixes.rs
@@ -33,6 +33,7 @@ fn f() {}
 
 #[must_use = "string"suffix]
 //~^ ERROR suffixes on string literals are invalid
+//~| ERROR malformed `must_use` attribute input
 fn g() {}
 
 #[link(name = "string"suffix)]
@@ -41,4 +42,5 @@ extern "C" {}
 
 #[rustc_layout_scalar_valid_range_start(0suffix)]
 //~^ ERROR invalid suffix `suffix` for number literal
+//~| ERROR malformed `rustc_layout_scalar_valid_range_start` attribute input
 struct S;
diff --git a/tests/ui/parser/bad-lit-suffixes.stderr b/tests/ui/parser/bad-lit-suffixes.stderr
index 416143e496a..7876d75c5a4 100644
--- a/tests/ui/parser/bad-lit-suffixes.stderr
+++ b/tests/ui/parser/bad-lit-suffixes.stderr
@@ -23,13 +23,13 @@ LL | #[must_use = "string"suffix]
    |              ^^^^^^^^^^^^^^ invalid suffix `suffix`
 
 error: suffixes on string literals are invalid
-  --> $DIR/bad-lit-suffixes.rs:38:15
+  --> $DIR/bad-lit-suffixes.rs:39:15
    |
 LL | #[link(name = "string"suffix)]
    |               ^^^^^^^^^^^^^^ invalid suffix `suffix`
 
 error: invalid suffix `suffix` for number literal
-  --> $DIR/bad-lit-suffixes.rs:42:41
+  --> $DIR/bad-lit-suffixes.rs:43:41
    |
 LL | #[rustc_layout_scalar_valid_range_start(0suffix)]
    |                                         ^^^^^^^ invalid suffix `suffix`
@@ -150,5 +150,33 @@ LL |     1.0e10suffix;
    |
    = help: valid suffixes are `f32` and `f64`
 
-error: aborting due to 20 previous errors; 2 warnings emitted
+error[E0539]: malformed `must_use` attribute input
+  --> $DIR/bad-lit-suffixes.rs:34:1
+   |
+LL | #[must_use = "string"suffix]
+   | ^^^^^^^^^^^^^--------------^
+   |              |
+   |              expected a string literal here
+   |
+help: try changing it to one of the following valid forms of the attribute
+   |
+LL - #[must_use = "string"suffix]
+LL + #[must_use = "reason"]
+   |
+LL - #[must_use = "string"suffix]
+LL + #[must_use]
+   |
+
+error[E0805]: malformed `rustc_layout_scalar_valid_range_start` attribute input
+  --> $DIR/bad-lit-suffixes.rs:43:1
+   |
+LL | #[rustc_layout_scalar_valid_range_start(0suffix)]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------^
+   | |                                      |
+   | |                                      expected a single argument here
+   | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]`
+
+error: aborting due to 22 previous errors; 2 warnings emitted
 
+Some errors have detailed explanations: E0539, E0805.
+For more information about an error, try `rustc --explain E0539`.
diff --git a/tests/ui/parser/multiline-comments-basic.rs b/tests/ui/parser/multiline-comments-basic.rs
new file mode 100644
index 00000000000..1aa2a531f5c
--- /dev/null
+++ b/tests/ui/parser/multiline-comments-basic.rs
@@ -0,0 +1,10 @@
+//! Test that basic multiline comments are parsed correctly.
+//!
+//! Feature implementation test for <https://github.com/rust-lang/rust/issues/66>.
+
+//@ run-pass
+
+/*
+ * This is a multi-line comment.
+ */
+pub fn main() {}
diff --git a/tests/ui/parser/trait-object-delimiters.rs b/tests/ui/parser/trait-object-delimiters.rs
index 1cbd2ff1bdf..2c75840bc0a 100644
--- a/tests/ui/parser/trait-object-delimiters.rs
+++ b/tests/ui/parser/trait-object-delimiters.rs
@@ -8,7 +8,7 @@ fn foo2(_: &dyn (Drop + AsRef<str>)) {} //~ ERROR incorrect parentheses around t
 fn foo2_no_space(_: &dyn(Drop + AsRef<str>)) {} //~ ERROR incorrect parentheses around trait bounds
 
 fn foo3(_: &dyn {Drop + AsRef<str>}) {} //~ ERROR expected parameter name, found `{`
-//~^ ERROR expected one of `!`, `(`, `)`, `*`, `,`, `?`, `[`, `async`, `const`, `for`, `use`, `~`, lifetime, or path, found `{`
+//~^ ERROR expected one of `!`, `(`, `)`, `,`, `?`, `[`, `async`, `const`, `for`, `use`, `~`, lifetime, or path, found `{`
 //~| ERROR at least one trait is required for an object type
 
 fn foo4(_: &dyn <Drop + AsRef<str>>) {} //~ ERROR expected identifier, found `<`
diff --git a/tests/ui/parser/trait-object-delimiters.stderr b/tests/ui/parser/trait-object-delimiters.stderr
index 16d5392eec8..a2c9161cfbe 100644
--- a/tests/ui/parser/trait-object-delimiters.stderr
+++ b/tests/ui/parser/trait-object-delimiters.stderr
@@ -39,11 +39,11 @@ error: expected parameter name, found `{`
 LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
    |                 ^ expected parameter name
 
-error: expected one of `!`, `(`, `)`, `*`, `,`, `?`, `[`, `async`, `const`, `for`, `use`, `~`, lifetime, or path, found `{`
+error: expected one of `!`, `(`, `)`, `,`, `?`, `[`, `async`, `const`, `for`, `use`, `~`, lifetime, or path, found `{`
   --> $DIR/trait-object-delimiters.rs:10:17
    |
 LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
-   |                -^ expected one of 14 possible tokens
+   |                -^ expected one of 13 possible tokens
    |                |
    |                help: missing `,`
 
diff --git a/tests/ui/new-unicode-escapes.rs b/tests/ui/parser/unicode-escape-sequences.rs
index 867a50da081..8b084866f19 100644
--- a/tests/ui/new-unicode-escapes.rs
+++ b/tests/ui/parser/unicode-escape-sequences.rs
@@ -1,6 +1,12 @@
+//! Test ES6-style Unicode escape sequences in string literals.
+//!
+//! Regression test for RFC 446 implementation.
+//! See <https://github.com/rust-lang/rust/pull/19480>.
+
 //@ run-pass
 
 pub fn main() {
+    // Basic Unicode escape - snowman character
     let s = "\u{2603}";
     assert_eq!(s, "☃");
 
diff --git a/tests/ui/parser/unicode-multibyte-chars-no-ice.rs b/tests/ui/parser/unicode-multibyte-chars-no-ice.rs
new file mode 100644
index 00000000000..b1bb0c66ae2
--- /dev/null
+++ b/tests/ui/parser/unicode-multibyte-chars-no-ice.rs
@@ -0,0 +1,9 @@
+//! Test that multibyte Unicode characters don't crash the compiler.
+//!
+//! Regression test for <https://github.com/rust-lang/rust/issues/4780>.
+
+//@ run-pass
+
+pub fn main() {
+    println!("마이너스 사인이 없으면");
+}
diff --git a/tests/ui/regions/lifetime-not-long-enough-suggestion-regression-test-124563.stderr b/tests/ui/regions/lifetime-not-long-enough-suggestion-regression-test-124563.stderr
index 9f1315070eb..e94074548e9 100644
--- a/tests/ui/regions/lifetime-not-long-enough-suggestion-regression-test-124563.stderr
+++ b/tests/ui/regions/lifetime-not-long-enough-suggestion-regression-test-124563.stderr
@@ -1,8 +1,8 @@
 error[E0478]: lifetime bound not satisfied
-  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:19:16
+  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:19:5
    |
 LL |     type Bar = BarImpl<'a, 'b, T>;
-   |                ^^^^^^^^^^^^^^^^^^
+   |     ^^^^^^^^
    |
 note: lifetime parameter instantiated with the lifetime `'a` as defined here
   --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:14:6
diff --git a/tests/ui/regions/region-bounds-on-objects-and-type-parameters.stderr b/tests/ui/regions/region-bounds-on-objects-and-type-parameters.stderr
index b15d2affeea..e2a5027e710 100644
--- a/tests/ui/regions/region-bounds-on-objects-and-type-parameters.stderr
+++ b/tests/ui/regions/region-bounds-on-objects-and-type-parameters.stderr
@@ -4,6 +4,14 @@ error[E0226]: only a single explicit lifetime bound is permitted
 LL |     z: Box<dyn Is<'a>+'b+'c>,
    |                          ^^
 
+error[E0392]: lifetime parameter `'c` is never used
+  --> $DIR/region-bounds-on-objects-and-type-parameters.rs:11:18
+   |
+LL | struct Foo<'a,'b,'c> {
+   |                  ^^ unused lifetime parameter
+   |
+   = help: consider removing `'c`, referring to it in a field, or using a marker such as `PhantomData`
+
 error[E0478]: lifetime bound not satisfied
   --> $DIR/region-bounds-on-objects-and-type-parameters.rs:21:8
    |
@@ -21,14 +29,6 @@ note: but lifetime parameter must outlive the lifetime `'a` as defined here
 LL | struct Foo<'a,'b,'c> {
    |            ^^
 
-error[E0392]: lifetime parameter `'c` is never used
-  --> $DIR/region-bounds-on-objects-and-type-parameters.rs:11:18
-   |
-LL | struct Foo<'a,'b,'c> {
-   |                  ^^ unused lifetime parameter
-   |
-   = help: consider removing `'c`, referring to it in a field, or using a marker such as `PhantomData`
-
 error: aborting due to 3 previous errors
 
 Some errors have detailed explanations: E0226, E0392, E0478.
diff --git a/tests/ui/regions/regions-normalize-in-where-clause-list.rs b/tests/ui/regions/regions-normalize-in-where-clause-list.rs
index 389f82e794b..9b046e6baed 100644
--- a/tests/ui/regions/regions-normalize-in-where-clause-list.rs
+++ b/tests/ui/regions/regions-normalize-in-where-clause-list.rs
@@ -22,9 +22,9 @@ where
 
 // Here we get an error: we need `'a: 'b`.
 fn bar<'a, 'b>()
-//~^ ERROR cannot infer
 where
     <() as Project<'a, 'b>>::Item: Eq,
+    //~^ ERROR cannot infer
 {
 }
 
diff --git a/tests/ui/regions/regions-normalize-in-where-clause-list.stderr b/tests/ui/regions/regions-normalize-in-where-clause-list.stderr
index ca9ceeeeff3..9a5c9ae53de 100644
--- a/tests/ui/regions/regions-normalize-in-where-clause-list.stderr
+++ b/tests/ui/regions/regions-normalize-in-where-clause-list.stderr
@@ -1,8 +1,8 @@
 error[E0803]: cannot infer an appropriate lifetime for lifetime parameter `'a` due to conflicting requirements
-  --> $DIR/regions-normalize-in-where-clause-list.rs:24:4
+  --> $DIR/regions-normalize-in-where-clause-list.rs:26:36
    |
-LL | fn bar<'a, 'b>()
-   |    ^^^
+LL |     <() as Project<'a, 'b>>::Item: Eq,
+   |                                    ^^
    |
 note: first, the lifetime cannot outlive the lifetime `'a` as defined here...
   --> $DIR/regions-normalize-in-where-clause-list.rs:24:8
@@ -15,10 +15,10 @@ note: ...but the lifetime must also be valid for the lifetime `'b` as defined he
 LL | fn bar<'a, 'b>()
    |            ^^
 note: ...so that the types are compatible
-  --> $DIR/regions-normalize-in-where-clause-list.rs:24:4
+  --> $DIR/regions-normalize-in-where-clause-list.rs:26:36
    |
-LL | fn bar<'a, 'b>()
-   |    ^^^
+LL |     <() as Project<'a, 'b>>::Item: Eq,
+   |                                    ^^
    = note: expected `Project<'a, 'b>`
               found `Project<'_, '_>`
 
diff --git a/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr b/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr
index a9b45a18af3..f53e9e3b478 100644
--- a/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr
+++ b/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr
@@ -2,6 +2,7 @@ error[E0259]: the name `std` is defined multiple times
    |
    = note: `std` must be defined only once in the type namespace of this module
 help: you can use `as` to change the binding name of the import
+  --> $DIR/resolve-conflict-extern-crate-vs-extern-crate.rs:1:17
    |
 LL | extern crate std as other_std;
    |                  ++++++++++++
diff --git a/tests/ui/max-min-classes.rs b/tests/ui/resolve/struct-function-same-name.rs
index 338a3156a9a..bb2837d7ca6 100644
--- a/tests/ui/max-min-classes.rs
+++ b/tests/ui/resolve/struct-function-same-name.rs
@@ -1,3 +1,5 @@
+//! Test that a struct and function can have the same name
+//!
 //@ run-pass
 
 #![allow(non_snake_case)]
@@ -23,7 +25,7 @@ impl Product for Foo {
 }
 
 fn Foo(x: isize, y: isize) -> Foo {
-    Foo { x: x, y: y }
+    Foo { x, y }
 }
 
 pub fn main() {
diff --git a/tests/ui/lexical-scoping.rs b/tests/ui/resolve/type-param-local-var-shadowing.rs
index f858369f7ce..e08379e2acf 100644
--- a/tests/ui/lexical-scoping.rs
+++ b/tests/ui/resolve/type-param-local-var-shadowing.rs
@@ -1,8 +1,13 @@
+//! Test that items in subscopes correctly shadow type parameters and local variables
+//!
+//! Regression test for https://github.com/rust-lang/rust/issues/23880
+
 //@ run-pass
-// Tests that items in subscopes can shadow type parameters and local variables (see issue #23880).
 
 #![allow(unused)]
-struct Foo<X> { x: Box<X> }
+struct Foo<X> {
+    x: Box<X>,
+}
 impl<Bar> Foo<Bar> {
     fn foo(&self) {
         type Bar = i32;
diff --git a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region-rev.stderr b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region-rev.stderr
index 591585c88f5..01a3f528359 100644
--- a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region-rev.stderr
+++ b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region-rev.stderr
@@ -1,8 +1,8 @@
 error[E0491]: in type `&'a Foo<'b>`, reference has a longer lifetime than the data it references
-  --> $DIR/regions-outlives-nominal-type-region-rev.rs:17:20
+  --> $DIR/regions-outlives-nominal-type-region-rev.rs:17:9
    |
 LL |         type Out = &'a Foo<'b>;
-   |                    ^^^^^^^^^^^
+   |         ^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/regions-outlives-nominal-type-region-rev.rs:16:10
diff --git a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region.stderr b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region.stderr
index 0404b52d9ef..ff4c5f07284 100644
--- a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region.stderr
+++ b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-region.stderr
@@ -1,8 +1,8 @@
 error[E0491]: in type `&'a Foo<'b>`, reference has a longer lifetime than the data it references
-  --> $DIR/regions-outlives-nominal-type-region.rs:17:20
+  --> $DIR/regions-outlives-nominal-type-region.rs:17:9
    |
 LL |         type Out = &'a Foo<'b>;
-   |                    ^^^^^^^^^^^
+   |         ^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/regions-outlives-nominal-type-region.rs:16:10
diff --git a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type-rev.stderr b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type-rev.stderr
index 62415e250ec..a0ede2aeada 100644
--- a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type-rev.stderr
+++ b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type-rev.stderr
@@ -1,8 +1,8 @@
 error[E0491]: in type `&'a Foo<&'b i32>`, reference has a longer lifetime than the data it references
-  --> $DIR/regions-outlives-nominal-type-type-rev.rs:17:20
+  --> $DIR/regions-outlives-nominal-type-type-rev.rs:17:9
    |
 LL |         type Out = &'a Foo<&'b i32>;
-   |                    ^^^^^^^^^^^^^^^^
+   |         ^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/regions-outlives-nominal-type-type-rev.rs:16:10
diff --git a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type.stderr b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type.stderr
index 464d7968b74..23d3f4ac606 100644
--- a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type.stderr
+++ b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-outlives-nominal-type-type.stderr
@@ -1,8 +1,8 @@
 error[E0491]: in type `&'a Foo<&'b i32>`, reference has a longer lifetime than the data it references
-  --> $DIR/regions-outlives-nominal-type-type.rs:17:20
+  --> $DIR/regions-outlives-nominal-type-type.rs:17:9
    |
 LL |         type Out = &'a Foo<&'b i32>;
-   |                    ^^^^^^^^^^^^^^^^
+   |         ^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/regions-outlives-nominal-type-type.rs:16:10
diff --git a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-struct-not-wf.stderr b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-struct-not-wf.stderr
index eb17ce736f7..73c0bbc44fb 100644
--- a/tests/ui/rfcs/rfc-2093-infer-outlives/regions-struct-not-wf.stderr
+++ b/tests/ui/rfcs/rfc-2093-infer-outlives/regions-struct-not-wf.stderr
@@ -1,10 +1,10 @@
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/regions-struct-not-wf.rs:13:16
+  --> $DIR/regions-struct-not-wf.rs:13:5
    |
 LL | impl<'a, T> Trait<'a, T> for usize {
    |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
 LL |     type Out = &'a T;
-   |                ^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
+   |     ^^^^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
@@ -12,12 +12,12 @@ LL | impl<'a, T: 'a> Trait<'a, T> for usize {
    |           ++++
 
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/regions-struct-not-wf.rs:21:16
+  --> $DIR/regions-struct-not-wf.rs:21:5
    |
 LL | impl<'a, T> Trait<'a, T> for u32 {
    |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
 LL |     type Out = RefOk<'a, T>;
-   |                ^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
+   |     ^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
    |
 note: ...that is required by this bound
   --> $DIR/regions-struct-not-wf.rs:16:20
@@ -30,10 +30,10 @@ LL | impl<'a, T: 'a> Trait<'a, T> for u32 {
    |           ++++
 
 error[E0491]: in type `&'a &'b T`, reference has a longer lifetime than the data it references
-  --> $DIR/regions-struct-not-wf.rs:25:16
+  --> $DIR/regions-struct-not-wf.rs:25:5
    |
 LL |     type Out = &'a &'b T;
-   |                ^^^^^^^^^
+   |     ^^^^^^^^
    |
 note: the pointer is valid for the lifetime `'a` as defined here
   --> $DIR/regions-struct-not-wf.rs:24:6
diff --git a/tests/ui/self/self-infer.rs b/tests/ui/self/self-infer.rs
index 9839b8880e9..d6f6d8bfa06 100644
--- a/tests/ui/self/self-infer.rs
+++ b/tests/ui/self/self-infer.rs
@@ -1,8 +1,8 @@
 struct S;
 
 impl S {
-    fn f(self: _) {} //~ERROR the placeholder `_` is not allowed within types on item signatures for functions
-    fn g(self: &_) {} //~ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    fn f(self: _) {} //~ERROR the placeholder `_` is not allowed within types on item signatures for methods
+    fn g(self: &_) {} //~ERROR the placeholder `_` is not allowed within types on item signatures for methods
 }
 
 fn main() {}
diff --git a/tests/ui/self/self-infer.stderr b/tests/ui/self/self-infer.stderr
index f9db559390f..13d803d9559 100644
--- a/tests/ui/self/self-infer.stderr
+++ b/tests/ui/self/self-infer.stderr
@@ -1,10 +1,10 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/self-infer.rs:4:16
    |
 LL |     fn f(self: _) {}
    |                ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/self-infer.rs:5:17
    |
 LL |     fn g(self: &_) {}
diff --git a/tests/ui/simd/array-trait.stderr b/tests/ui/simd/array-trait.stderr
index 299f0ad96ae..47f395044ff 100644
--- a/tests/ui/simd/array-trait.stderr
+++ b/tests/ui/simd/array-trait.stderr
@@ -1,3 +1,9 @@
+error[E0077]: SIMD vector element type should be a primitive scalar (integer/float/pointer) type
+  --> $DIR/array-trait.rs:22:1
+   |
+LL | pub struct T<S: Simd>([S::Lane; S::SIZE]);
+   | ^^^^^^^^^^^^^^^^^^^^^
+
 error: unconstrained generic constant
   --> $DIR/array-trait.rs:22:23
    |
@@ -9,12 +15,6 @@ help: try adding a `where` bound
 LL | pub struct T<S: Simd>([S::Lane; S::SIZE]) where [(); S::SIZE]:;
    |                                           ++++++++++++++++++++
 
-error[E0077]: SIMD vector element type should be a primitive scalar (integer/float/pointer) type
-  --> $DIR/array-trait.rs:22:1
-   |
-LL | pub struct T<S: Simd>([S::Lane; S::SIZE]);
-   | ^^^^^^^^^^^^^^^^^^^^^
-
 error: unconstrained generic constant
   --> $DIR/array-trait.rs:22:23
    |
diff --git a/tests/ui/sized-hierarchy/impls.rs b/tests/ui/sized-hierarchy/impls.rs
index 46697e47c4b..643f7bc7c46 100644
--- a/tests/ui/sized-hierarchy/impls.rs
+++ b/tests/ui/sized-hierarchy/impls.rs
@@ -3,7 +3,7 @@
 
 #![allow(incomplete_features, internal_features)]
 #![feature(sized_hierarchy)]
-#![feature(coroutines, dyn_star, extern_types, f16, never_type, unsized_fn_params)]
+#![feature(coroutines, extern_types, f16, never_type, unsized_fn_params)]
 
 use std::fmt::Debug;
 use std::marker::{MetaSized, PointeeSized};
@@ -151,11 +151,6 @@ fn main() {
     needs_metasized::<!>();
     needs_pointeesized::<!>();
 
-    // `dyn*`
-    needs_sized::<dyn* Debug>();
-    needs_metasized::<dyn* Debug>();
-    needs_pointeesized::<dyn* Debug>();
-
     // `str`
     needs_sized::<str>();
     //~^ ERROR the size for values of type `str` cannot be known at compilation time
diff --git a/tests/ui/sized-hierarchy/impls.stderr b/tests/ui/sized-hierarchy/impls.stderr
index eebe4e0d706..ca70822aad2 100644
--- a/tests/ui/sized-hierarchy/impls.stderr
+++ b/tests/ui/sized-hierarchy/impls.stderr
@@ -1,5 +1,5 @@
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:240:42
+  --> $DIR/impls.rs:235:42
    |
 LL |     struct StructAllFieldsMetaSized { x: [u8], y: [u8] }
    |                                          ^^^^ doesn't have a size known at compile-time
@@ -17,7 +17,7 @@ LL |     struct StructAllFieldsMetaSized { x: Box<[u8]>, y: [u8] }
    |                                          ++++    +
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:248:40
+  --> $DIR/impls.rs:243:40
    |
 LL |     struct StructAllFieldsUnsized { x: Foo, y: Foo }
    |                                        ^^^ doesn't have a size known at compile-time
@@ -35,7 +35,7 @@ LL |     struct StructAllFieldsUnsized { x: Box<Foo>, y: Foo }
    |                                        ++++   +
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:284:44
+  --> $DIR/impls.rs:279:44
    |
 LL |     enum EnumAllFieldsMetaSized { Qux { x: [u8], y: [u8] } }
    |                                            ^^^^ doesn't have a size known at compile-time
@@ -53,7 +53,7 @@ LL |     enum EnumAllFieldsMetaSized { Qux { x: Box<[u8]>, y: [u8] } }
    |                                            ++++    +
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:291:42
+  --> $DIR/impls.rs:286:42
    |
 LL |     enum EnumAllFieldsUnsized { Qux { x: Foo, y: Foo } }
    |                                          ^^^ doesn't have a size known at compile-time
@@ -71,7 +71,7 @@ LL |     enum EnumAllFieldsUnsized { Qux { x: Box<Foo>, y: Foo } }
    |                                          ++++   +
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:298:52
+  --> $DIR/impls.rs:293:52
    |
 LL |     enum EnumLastFieldMetaSized { Qux { x: u32, y: [u8] } }
    |                                                    ^^^^ doesn't have a size known at compile-time
@@ -89,7 +89,7 @@ LL |     enum EnumLastFieldMetaSized { Qux { x: u32, y: Box<[u8]> } }
    |                                                    ++++    +
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:305:50
+  --> $DIR/impls.rs:300:50
    |
 LL |     enum EnumLastFieldUnsized { Qux { x: u32, y: Foo } }
    |                                                  ^^^ doesn't have a size known at compile-time
@@ -107,7 +107,7 @@ LL |     enum EnumLastFieldUnsized { Qux { x: u32, y: Box<Foo> } }
    |                                                  ++++   +
 
 error[E0277]: the size for values of type `str` cannot be known at compilation time
-  --> $DIR/impls.rs:160:19
+  --> $DIR/impls.rs:155:19
    |
 LL |     needs_sized::<str>();
    |                   ^^^ doesn't have a size known at compile-time
@@ -120,7 +120,7 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:166:19
+  --> $DIR/impls.rs:161:19
    |
 LL |     needs_sized::<[u8]>();
    |                   ^^^^ doesn't have a size known at compile-time
@@ -133,7 +133,7 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `dyn Debug` cannot be known at compilation time
-  --> $DIR/impls.rs:172:19
+  --> $DIR/impls.rs:167:19
    |
 LL |     needs_sized::<dyn Debug>();
    |                   ^^^^^^^^^ doesn't have a size known at compile-time
@@ -146,7 +146,7 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:181:19
+  --> $DIR/impls.rs:176:19
    |
 LL |     needs_sized::<Foo>();
    |                   ^^^ doesn't have a size known at compile-time
@@ -159,7 +159,7 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known
-  --> $DIR/impls.rs:183:23
+  --> $DIR/impls.rs:178:23
    |
 LL |     needs_metasized::<Foo>();
    |                       ^^^ doesn't have a known size
@@ -172,7 +172,7 @@ LL | fn needs_metasized<T: MetaSized>() { }
    |                       ^^^^^^^^^ required by this bound in `needs_metasized`
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:198:19
+  --> $DIR/impls.rs:193:19
    |
 LL |     needs_sized::<([u8], [u8])>();
    |                   ^^^^^^^^^^^^ doesn't have a size known at compile-time
@@ -181,7 +181,7 @@ LL |     needs_sized::<([u8], [u8])>();
    = note: only the last element of a tuple may have a dynamically sized type
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:200:23
+  --> $DIR/impls.rs:195:23
    |
 LL |     needs_metasized::<([u8], [u8])>();
    |                       ^^^^^^^^^^^^ doesn't have a size known at compile-time
@@ -190,7 +190,7 @@ LL |     needs_metasized::<([u8], [u8])>();
    = note: only the last element of a tuple may have a dynamically sized type
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:202:26
+  --> $DIR/impls.rs:197:26
    |
 LL |     needs_pointeesized::<([u8], [u8])>();
    |                          ^^^^^^^^^^^^ doesn't have a size known at compile-time
@@ -199,7 +199,7 @@ LL |     needs_pointeesized::<([u8], [u8])>();
    = note: only the last element of a tuple may have a dynamically sized type
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:206:19
+  --> $DIR/impls.rs:201:19
    |
 LL |     needs_sized::<(Foo, Foo)>();
    |                   ^^^^^^^^^^ doesn't have a size known at compile-time
@@ -208,7 +208,7 @@ LL |     needs_sized::<(Foo, Foo)>();
    = note: only the last element of a tuple may have a dynamically sized type
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:208:23
+  --> $DIR/impls.rs:203:23
    |
 LL |     needs_metasized::<(Foo, Foo)>();
    |                       ^^^^^^^^^^ doesn't have a size known at compile-time
@@ -217,7 +217,7 @@ LL |     needs_metasized::<(Foo, Foo)>();
    = note: only the last element of a tuple may have a dynamically sized type
 
 error[E0277]: the size for values of type `main::Foo` cannot be known
-  --> $DIR/impls.rs:208:23
+  --> $DIR/impls.rs:203:23
    |
 LL |     needs_metasized::<(Foo, Foo)>();
    |                       ^^^^^^^^^^ doesn't have a known size
@@ -231,7 +231,7 @@ LL | fn needs_metasized<T: MetaSized>() { }
    |                       ^^^^^^^^^ required by this bound in `needs_metasized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:211:26
+  --> $DIR/impls.rs:206:26
    |
 LL |     needs_pointeesized::<(Foo, Foo)>();
    |                          ^^^^^^^^^^ doesn't have a size known at compile-time
@@ -240,7 +240,7 @@ LL |     needs_pointeesized::<(Foo, Foo)>();
    = note: only the last element of a tuple may have a dynamically sized type
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:215:19
+  --> $DIR/impls.rs:210:19
    |
 LL |     needs_sized::<(u32, [u8])>();
    |                   ^^^^^^^^^^^ doesn't have a size known at compile-time
@@ -254,7 +254,7 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:221:19
+  --> $DIR/impls.rs:216:19
    |
 LL |     needs_sized::<(u32, Foo)>();
    |                   ^^^^^^^^^^ doesn't have a size known at compile-time
@@ -268,7 +268,7 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known
-  --> $DIR/impls.rs:223:23
+  --> $DIR/impls.rs:218:23
    |
 LL |     needs_metasized::<(u32, Foo)>();
    |                       ^^^^^^^^^^ doesn't have a known size
@@ -282,14 +282,14 @@ LL | fn needs_metasized<T: MetaSized>() { }
    |                       ^^^^^^^^^ required by this bound in `needs_metasized`
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:242:19
+  --> $DIR/impls.rs:237:19
    |
 LL |     needs_sized::<StructAllFieldsMetaSized>();
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: within `StructAllFieldsMetaSized`, the trait `Sized` is not implemented for `[u8]`
 note: required because it appears within the type `StructAllFieldsMetaSized`
-  --> $DIR/impls.rs:240:12
+  --> $DIR/impls.rs:235:12
    |
 LL |     struct StructAllFieldsMetaSized { x: [u8], y: [u8] }
    |            ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -300,14 +300,14 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:250:19
+  --> $DIR/impls.rs:245:19
    |
 LL |     needs_sized::<StructAllFieldsUnsized>();
    |                   ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: within `StructAllFieldsUnsized`, the trait `Sized` is not implemented for `main::Foo`
 note: required because it appears within the type `StructAllFieldsUnsized`
-  --> $DIR/impls.rs:248:12
+  --> $DIR/impls.rs:243:12
    |
 LL |     struct StructAllFieldsUnsized { x: Foo, y: Foo }
    |            ^^^^^^^^^^^^^^^^^^^^^^
@@ -318,14 +318,14 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known
-  --> $DIR/impls.rs:252:23
+  --> $DIR/impls.rs:247:23
    |
 LL |     needs_metasized::<StructAllFieldsUnsized>();
    |                       ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
    |
    = help: within `StructAllFieldsUnsized`, the trait `MetaSized` is not implemented for `main::Foo`
 note: required because it appears within the type `StructAllFieldsUnsized`
-  --> $DIR/impls.rs:248:12
+  --> $DIR/impls.rs:243:12
    |
 LL |     struct StructAllFieldsUnsized { x: Foo, y: Foo }
    |            ^^^^^^^^^^^^^^^^^^^^^^
@@ -336,14 +336,14 @@ LL | fn needs_metasized<T: MetaSized>() { }
    |                       ^^^^^^^^^ required by this bound in `needs_metasized`
 
 error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
-  --> $DIR/impls.rs:258:19
+  --> $DIR/impls.rs:253:19
    |
 LL |     needs_sized::<StructLastFieldMetaSized>();
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: within `StructLastFieldMetaSized`, the trait `Sized` is not implemented for `[u8]`
 note: required because it appears within the type `StructLastFieldMetaSized`
-  --> $DIR/impls.rs:257:12
+  --> $DIR/impls.rs:252:12
    |
 LL |     struct StructLastFieldMetaSized { x: u32, y: [u8] }
    |            ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -354,14 +354,14 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known at compilation time
-  --> $DIR/impls.rs:265:19
+  --> $DIR/impls.rs:260:19
    |
 LL |     needs_sized::<StructLastFieldUnsized>();
    |                   ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: within `StructLastFieldUnsized`, the trait `Sized` is not implemented for `main::Foo`
 note: required because it appears within the type `StructLastFieldUnsized`
-  --> $DIR/impls.rs:264:12
+  --> $DIR/impls.rs:259:12
    |
 LL |     struct StructLastFieldUnsized { x: u32, y: Foo }
    |            ^^^^^^^^^^^^^^^^^^^^^^
@@ -372,14 +372,14 @@ LL | fn needs_sized<T: Sized>() { }
    |                   ^^^^^ required by this bound in `needs_sized`
 
 error[E0277]: the size for values of type `main::Foo` cannot be known
-  --> $DIR/impls.rs:267:23
+  --> $DIR/impls.rs:262:23
    |
 LL |     needs_metasized::<StructLastFieldUnsized>();
    |                       ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
    |
    = help: within `StructLastFieldUnsized`, the trait `MetaSized` is not implemented for `main::Foo`
 note: required because it appears within the type `StructLastFieldUnsized`
-  --> $DIR/impls.rs:264:12
+  --> $DIR/impls.rs:259:12
    |
 LL |     struct StructLastFieldUnsized { x: u32, y: Foo }
    |            ^^^^^^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/specialization/defaultimpl/validation.stderr b/tests/ui/specialization/defaultimpl/validation.stderr
index d034386b842..82a33bf9cdc 100644
--- a/tests/ui/specialization/defaultimpl/validation.stderr
+++ b/tests/ui/specialization/defaultimpl/validation.stderr
@@ -18,14 +18,6 @@ LL | #![feature(specialization)]
    = help: consider using `min_specialization` instead, which is more stable and complete
    = note: `#[warn(incomplete_features)]` on by default
 
-error: impls of auto traits cannot be default
-  --> $DIR/validation.rs:9:21
-   |
-LL | default unsafe impl Send for S {}
-   | -------             ^^^^ auto trait
-   | |
-   | default because of this
-
 error[E0367]: `!Send` impl requires `Z: Send` but the struct it is implemented for does not
   --> $DIR/validation.rs:12:1
    |
@@ -39,6 +31,14 @@ LL | struct Z;
    | ^^^^^^^^
 
 error: impls of auto traits cannot be default
+  --> $DIR/validation.rs:9:21
+   |
+LL | default unsafe impl Send for S {}
+   | -------             ^^^^ auto trait
+   | |
+   | default because of this
+
+error: impls of auto traits cannot be default
   --> $DIR/validation.rs:12:15
    |
 LL | default impl !Send for Z {}
diff --git a/tests/ui/specialization/issue-51892.stderr b/tests/ui/specialization/issue-51892.stderr
index b1cabc0ac0e..f327f10438d 100644
--- a/tests/ui/specialization/issue-51892.stderr
+++ b/tests/ui/specialization/issue-51892.stderr
@@ -1,8 +1,8 @@
 error: unconstrained generic constant
-  --> $DIR/issue-51892.rs:14:17
+  --> $DIR/issue-51892.rs:14:5
    |
 LL |     type Type = [u8; std::mem::size_of::<<T as Trait>::Type>()];
-   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^^^^^^^^
    |
 help: try adding a `where` bound
    |
diff --git a/tests/ui/specialization/min_specialization/issue-79224.stderr b/tests/ui/specialization/min_specialization/issue-79224.stderr
index 2ed614f1857..9b6c931f909 100644
--- a/tests/ui/specialization/min_specialization/issue-79224.stderr
+++ b/tests/ui/specialization/min_specialization/issue-79224.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the trait bound `B: Clone` is not satisfied
-  --> $DIR/issue-79224.rs:28:29
+  --> $DIR/issue-79224.rs:30:5
    |
-LL | impl<B: ?Sized> Display for Cow<'_, B> {
-   |                             ^^^^^^^^^^ the trait `Clone` is not implemented for `B`
+LL |     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `B`
    |
    = note: required for `B` to implement `ToOwned`
 help: consider further restricting type parameter `B` with trait `Clone`
@@ -11,10 +11,10 @@ LL | impl<B: ?Sized + std::clone::Clone> Display for Cow<'_, B> {
    |                +++++++++++++++++++
 
 error[E0277]: the trait bound `B: Clone` is not satisfied
-  --> $DIR/issue-79224.rs:30:5
+  --> $DIR/issue-79224.rs:28:29
    |
-LL |     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `B`
+LL | impl<B: ?Sized> Display for Cow<'_, B> {
+   |                             ^^^^^^^^^^ the trait `Clone` is not implemented for `B`
    |
    = note: required for `B` to implement `ToOwned`
 help: consider further restricting type parameter `B` with trait `Clone`
diff --git a/tests/ui/static/issue-24446.stderr b/tests/ui/static/issue-24446.stderr
index 0e6e338c5ef..6e35db7cc4a 100644
--- a/tests/ui/static/issue-24446.stderr
+++ b/tests/ui/static/issue-24446.stderr
@@ -1,17 +1,17 @@
 error[E0277]: `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
-  --> $DIR/issue-24446.rs:2:17
+  --> $DIR/issue-24446.rs:2:5
    |
 LL |     static foo: dyn Fn() -> u32 = || -> u32 {
-   |                 ^^^^^^^^^^^^^^^ `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
    |
    = help: the trait `Sync` is not implemented for `(dyn Fn() -> u32 + 'static)`
    = note: shared static variables must have a type that implements `Sync`
 
 error[E0277]: the size for values of type `(dyn Fn() -> u32 + 'static)` cannot be known at compilation time
-  --> $DIR/issue-24446.rs:2:17
+  --> $DIR/issue-24446.rs:2:5
    |
 LL |     static foo: dyn Fn() -> u32 = || -> u32 {
-   |                 ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `(dyn Fn() -> u32 + 'static)`
    = note: statics and constants must have a statically known size
diff --git a/tests/ui/statics/issue-17718-static-sync.stderr b/tests/ui/statics/issue-17718-static-sync.stderr
index 96f894146c5..d49dbd947c5 100644
--- a/tests/ui/statics/issue-17718-static-sync.stderr
+++ b/tests/ui/statics/issue-17718-static-sync.stderr
@@ -1,8 +1,8 @@
 error[E0277]: `Foo` cannot be shared between threads safely
-  --> $DIR/issue-17718-static-sync.rs:9:13
+  --> $DIR/issue-17718-static-sync.rs:9:1
    |
 LL | static BAR: Foo = Foo;
-   |             ^^^ `Foo` cannot be shared between threads safely
+   | ^^^^^^^^^^^^^^^ `Foo` cannot be shared between threads safely
    |
    = help: the trait `Sync` is not implemented for `Foo`
    = note: shared static variables must have a type that implements `Sync`
diff --git a/tests/ui/statics/static-generic-param-soundness.rs b/tests/ui/statics/static-generic-param-soundness.rs
new file mode 100644
index 00000000000..aabcca514d3
--- /dev/null
+++ b/tests/ui/statics/static-generic-param-soundness.rs
@@ -0,0 +1,20 @@
+//! Originally, inner statics in generic functions were generated only once, causing the same
+//! static to be shared across all generic instantiations. This created a soundness hole where
+//! different types could be coerced through thread-local storage in safe code.
+//!
+//! This test checks that generic parameters from outer scopes cannot be used in inner statics,
+//! preventing this soundness issue.
+//!
+//! See https://github.com/rust-lang/rust/issues/9186
+
+enum Bar<T> {
+    //~^ ERROR parameter `T` is never used
+    What,
+}
+
+fn foo<T>() {
+    static a: Bar<T> = Bar::What;
+    //~^ ERROR can't use generic parameters from outer item
+}
+
+fn main() {}
diff --git a/tests/ui/inner-static-type-parameter.stderr b/tests/ui/statics/static-generic-param-soundness.stderr
index 88d33b44c59..47554c7fcb0 100644
--- a/tests/ui/inner-static-type-parameter.stderr
+++ b/tests/ui/statics/static-generic-param-soundness.stderr
@@ -1,5 +1,5 @@
 error[E0401]: can't use generic parameters from outer item
-  --> $DIR/inner-static-type-parameter.rs:6:19
+  --> $DIR/static-generic-param-soundness.rs:16:19
    |
 LL | fn foo<T>() {
    |        - type parameter from outer item
@@ -9,9 +9,9 @@ LL |     static a: Bar<T> = Bar::What;
    = note: a `static` is a separate item from the item that contains it
 
 error[E0392]: type parameter `T` is never used
-  --> $DIR/inner-static-type-parameter.rs:3:10
+  --> $DIR/static-generic-param-soundness.rs:10:10
    |
-LL | enum Bar<T> { What }
+LL | enum Bar<T> {
    |          ^ unused type parameter
    |
    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
diff --git a/tests/ui/statics/uninhabited-static.stderr b/tests/ui/statics/uninhabited-static.stderr
index f799a82f139..a0f9ad6772d 100644
--- a/tests/ui/statics/uninhabited-static.stderr
+++ b/tests/ui/statics/uninhabited-static.stderr
@@ -1,8 +1,8 @@
 error: static of uninhabited type
-  --> $DIR/uninhabited-static.rs:6:5
+  --> $DIR/uninhabited-static.rs:12:1
    |
-LL |     static VOID: Void;
-   |     ^^^^^^^^^^^^^^^^^
+LL | static VOID2: Void = unsafe { std::mem::transmute(()) };
+   | ^^^^^^^^^^^^^^^^^^
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
@@ -14,30 +14,30 @@ LL | #![deny(uninhabited_static)]
    |         ^^^^^^^^^^^^^^^^^^
 
 error: static of uninhabited type
-  --> $DIR/uninhabited-static.rs:8:5
+  --> $DIR/uninhabited-static.rs:15:1
    |
-LL |     static NEVER: !;
-   |     ^^^^^^^^^^^^^^^
+LL | static NEVER2: Void = unsafe { std::mem::transmute(()) };
+   | ^^^^^^^^^^^^^^^^^^^
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
    = note: uninhabited statics cannot be initialized, and any access would be an immediate error
 
 error: static of uninhabited type
-  --> $DIR/uninhabited-static.rs:12:1
+  --> $DIR/uninhabited-static.rs:6:5
    |
-LL | static VOID2: Void = unsafe { std::mem::transmute(()) };
-   | ^^^^^^^^^^^^^^^^^^
+LL |     static VOID: Void;
+   |     ^^^^^^^^^^^^^^^^^
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
    = note: uninhabited statics cannot be initialized, and any access would be an immediate error
 
 error: static of uninhabited type
-  --> $DIR/uninhabited-static.rs:15:1
+  --> $DIR/uninhabited-static.rs:8:5
    |
-LL | static NEVER2: Void = unsafe { std::mem::transmute(()) };
-   | ^^^^^^^^^^^^^^^^^^^
+LL |     static NEVER: !;
+   |     ^^^^^^^^^^^^^^^
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
diff --git a/tests/ui/statics/unsized_type2.stderr b/tests/ui/statics/unsized_type2.stderr
index 3f9b0879c16..293df7554e9 100644
--- a/tests/ui/statics/unsized_type2.stderr
+++ b/tests/ui/statics/unsized_type2.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the size for values of type `str` cannot be known at compilation time
-  --> $DIR/unsized_type2.rs:14:24
+  --> $DIR/unsized_type2.rs:14:1
    |
 LL | pub static WITH_ERROR: Foo = Foo { version: 0 };
-   |                        ^^^ doesn't have a size known at compile-time
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: within `Foo`, the trait `Sized` is not implemented for `str`
 note: required because it appears within the type `Foo`
diff --git a/tests/ui/statics/unsizing-wfcheck-issue-127299.stderr b/tests/ui/statics/unsizing-wfcheck-issue-127299.stderr
index e401277a020..8a19207c5d7 100644
--- a/tests/ui/statics/unsizing-wfcheck-issue-127299.stderr
+++ b/tests/ui/statics/unsizing-wfcheck-issue-127299.stderr
@@ -22,10 +22,10 @@ LL |     fn bar() -> i32 where Self: Sized;
    |                     +++++++++++++++++
 
 error[E0277]: `(dyn Qux + 'static)` cannot be shared between threads safely
-  --> $DIR/unsizing-wfcheck-issue-127299.rs:12:13
+  --> $DIR/unsizing-wfcheck-issue-127299.rs:12:1
    |
 LL | static FOO: &Lint = &Lint { desc: "desc" };
-   |             ^^^^^ `(dyn Qux + 'static)` cannot be shared between threads safely
+   | ^^^^^^^^^^^^^^^^^ `(dyn Qux + 'static)` cannot be shared between threads safely
    |
    = help: within `&'static Lint`, the trait `Sync` is not implemented for `(dyn Qux + 'static)`
    = note: required because it appears within the type `&'static (dyn Qux + 'static)`
diff --git a/tests/ui/stats/macro-stats.rs b/tests/ui/stats/macro-stats.rs
index ee265d682fd..d986904ddd6 100644
--- a/tests/ui/stats/macro-stats.rs
+++ b/tests/ui/stats/macro-stats.rs
@@ -49,12 +49,17 @@ fn opt(x: Option<u32>) {
     }
 }
 
-macro_rules! this_is_a_really_really_long_macro_name {
+macro_rules! long_name_that_fits_on_a_single_line {
+    () => {}
+}
+long_name_that_fits_on_a_single_line!();
+
+macro_rules! long_name_that_doesnt_fit_on_one_line {
     ($t:ty) => {
         fn f(_: $t) {}
     }
 }
-this_is_a_really_really_long_macro_name!(u32!()); // AstFragmentKind::{Items,Ty}
+long_name_that_doesnt_fit_on_one_line!(u32!()); // AstFragmentKind::{Items,Ty}
 
 macro_rules! trait_tys {
     () => {
diff --git a/tests/ui/stats/macro-stats.stderr b/tests/ui/stats/macro-stats.stderr
index 00c6b55c6a2..8d0fdb8958a 100644
--- a/tests/ui/stats/macro-stats.stderr
+++ b/tests/ui/stats/macro-stats.stderr
@@ -15,12 +15,13 @@ macro-stats #[derive(Copy)]                       1          2        2.0
 macro-stats p!                                    1          3        3.0         32       32.0
 macro-stats trait_impl_tys!                       1          2        2.0         28       28.0
 macro-stats foreign_item!                         1          1        1.0         21       21.0
-macro-stats this_is_a_really_really_long_macro_name!
+macro-stats long_name_that_doesnt_fit_on_one_line!
 macro-stats                                       1          1        1.0         18       18.0
 macro-stats impl_const!                           1          1        1.0         17       17.0
 macro-stats trait_tys!                            1          2        2.0         15       15.0
 macro-stats n99!                                  2          2        1.0          4        2.0
 macro-stats none!                                 1          1        1.0          4        4.0
 macro-stats u32!                                  1          1        1.0          3        3.0
+macro-stats long_name_that_fits_on_a_single_line! 1          1        1.0          0        0.0
 macro-stats #[test]                               1          1        1.0          0        0.0
 macro-stats ===================================================================================
diff --git a/tests/ui/structs/basic-newtype-pattern.rs b/tests/ui/structs/basic-newtype-pattern.rs
new file mode 100644
index 00000000000..38ccd0ea8e0
--- /dev/null
+++ b/tests/ui/structs/basic-newtype-pattern.rs
@@ -0,0 +1,25 @@
+//! Test basic newtype pattern functionality.
+
+//@ run-pass
+
+#[derive(Copy, Clone)]
+struct Counter(CounterData);
+
+#[derive(Copy, Clone)]
+struct CounterData {
+    compute: fn(Counter) -> isize,
+    val: isize,
+}
+
+fn compute_value(counter: Counter) -> isize {
+    let Counter(data) = counter;
+    data.val + 20
+}
+
+pub fn main() {
+    let my_counter = Counter(CounterData { compute: compute_value, val: 30 });
+
+    // Test destructuring and function pointer call
+    let Counter(data) = my_counter;
+    assert_eq!((data.compute)(my_counter), 50);
+}
diff --git a/tests/ui/suggestions/bad-infer-in-trait-impl.rs b/tests/ui/suggestions/bad-infer-in-trait-impl.rs
index f38b168037b..db6fc9319e1 100644
--- a/tests/ui/suggestions/bad-infer-in-trait-impl.rs
+++ b/tests/ui/suggestions/bad-infer-in-trait-impl.rs
@@ -4,7 +4,7 @@ trait Foo {
 
 impl Foo for () {
     fn bar(s: _) {}
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
     //~| ERROR has 1 parameter but the declaration in trait `Foo::bar` has 0
 }
 
diff --git a/tests/ui/suggestions/bad-infer-in-trait-impl.stderr b/tests/ui/suggestions/bad-infer-in-trait-impl.stderr
index 8b7d67ac041..5aa46545943 100644
--- a/tests/ui/suggestions/bad-infer-in-trait-impl.stderr
+++ b/tests/ui/suggestions/bad-infer-in-trait-impl.stderr
@@ -1,4 +1,4 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/bad-infer-in-trait-impl.rs:6:15
    |
 LL |     fn bar(s: _) {}
diff --git a/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.rs b/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.rs
index 6a273997ee6..2ee6ad91056 100644
--- a/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.rs
+++ b/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.rs
@@ -1,5 +1,3 @@
-#![feature(dyn_star)] //~ WARNING the feature `dyn_star` is incomplete
-
 use std::future::Future;
 
 pub fn dyn_func<T>(
@@ -8,12 +6,6 @@ pub fn dyn_func<T>(
     Box::new(executor) //~ ERROR may not live long enough
 }
 
-pub fn dyn_star_func<T>(
-    executor: impl FnOnce(T) -> dyn* Future<Output = ()>,
-) -> Box<dyn FnOnce(T) -> dyn* Future<Output = ()>> {
-    Box::new(executor) //~ ERROR may not live long enough
-}
-
 trait Trait {
     fn method(&self) {}
 }
diff --git a/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.stderr b/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.stderr
index 1fb3e7d211e..62943616e3a 100644
--- a/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.stderr
+++ b/tests/ui/suggestions/wrap-dyn-in-suggestion-issue-120223.stderr
@@ -1,14 +1,5 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:1:12
-   |
-LL | #![feature(dyn_star)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
 error[E0599]: no method named `method` found for type parameter `T` in the current scope
-  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:24:7
+  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:16:7
    |
 LL | pub fn in_ty_param<T: Fn() -> dyn std::fmt::Debug> (t: T) {
    |                    - method `method` not found for this type parameter
@@ -22,7 +13,7 @@ LL | pub fn in_ty_param<T: Fn() -> (dyn std::fmt::Debug) + Trait> (t: T) {
    |                               +                   +++++++++
 
 error[E0277]: the size for values of type `T` cannot be known at compilation time
-  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:29:21
+  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:21:21
    |
 LL | fn with_sized<T: Fn() -> &'static (dyn std::fmt::Debug) + ?Sized>() {
    |               - this type parameter needs to be `Sized`
@@ -30,7 +21,7 @@ LL |     without_sized::<T>();
    |                     ^ doesn't have a size known at compile-time
    |
 note: required by an implicit `Sized` bound in `without_sized`
-  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:33:18
+  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:25:18
    |
 LL | fn without_sized<T: Fn() -> &'static dyn std::fmt::Debug>() {}
    |                  ^ required by the implicit `Sized` requirement on this type parameter in `without_sized`
@@ -45,7 +36,7 @@ LL | fn without_sized<T: Fn() -> &'static (dyn std::fmt::Debug) + ?Sized>() {}
    |                                      +                   ++++++++++
 
 error[E0310]: the parameter type `impl FnOnce(T) -> dyn Future<Output = ()>` may not live long enough
-  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:8:5
+  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:6:5
    |
 LL |     Box::new(executor)
    |     ^^^^^^^^^^^^^^^^^^
@@ -58,21 +49,7 @@ help: consider adding an explicit lifetime bound
 LL |     executor: impl FnOnce(T) -> (dyn Future<Output = ()>) + 'static,
    |                                 +                       +++++++++++
 
-error[E0310]: the parameter type `impl FnOnce(T) -> dyn* Future<Output = ()>` may not live long enough
-  --> $DIR/wrap-dyn-in-suggestion-issue-120223.rs:14:5
-   |
-LL |     Box::new(executor)
-   |     ^^^^^^^^^^^^^^^^^^
-   |     |
-   |     the parameter type `impl FnOnce(T) -> dyn* Future<Output = ()>` must be valid for the static lifetime...
-   |     ...so that the type `impl FnOnce(T) -> dyn* Future<Output = ()>` will meet its required lifetime bounds
-   |
-help: consider adding an explicit lifetime bound
-   |
-LL |     executor: impl FnOnce(T) -> (dyn* Future<Output = ()>) + 'static,
-   |                                 +                        +++++++++++
-
-error: aborting due to 4 previous errors; 1 warning emitted
+error: aborting due to 3 previous errors
 
 Some errors have detailed explanations: E0277, E0310, E0599.
 For more information about an error, try `rustc --explain E0277`.
diff --git a/tests/ui/no-send-res-ports.rs b/tests/ui/threads-sendsync/rc-is-not-send.rs
index 1bac5868e73..dd562e9e8f3 100644
--- a/tests/ui/no-send-res-ports.rs
+++ b/tests/ui/threads-sendsync/rc-is-not-send.rs
@@ -1,28 +1,28 @@
-use std::thread;
+//! Test that `Rc<T>` cannot be sent between threads.
+
 use std::rc::Rc;
+use std::thread;
 
 #[derive(Debug)]
 struct Port<T>(Rc<T>);
 
-fn main() {
-    #[derive(Debug)]
-    struct Foo {
-      _x: Port<()>,
-    }
+#[derive(Debug)]
+struct Foo {
+    _x: Port<()>,
+}
 
-    impl Drop for Foo {
-        fn drop(&mut self) {}
-    }
+impl Drop for Foo {
+    fn drop(&mut self) {}
+}
 
-    fn foo(x: Port<()>) -> Foo {
-        Foo {
-            _x: x
-        }
-    }
+fn foo(x: Port<()>) -> Foo {
+    Foo { _x: x }
+}
 
+fn main() {
     let x = foo(Port(Rc::new(())));
 
-    thread::spawn(move|| {
+    thread::spawn(move || {
         //~^ ERROR `Rc<()>` cannot be sent between threads safely
         let y = x;
         println!("{:?}", y);
diff --git a/tests/ui/no-send-res-ports.stderr b/tests/ui/threads-sendsync/rc-is-not-send.stderr
index 9c30261e5cb..a06b683f729 100644
--- a/tests/ui/no-send-res-ports.stderr
+++ b/tests/ui/threads-sendsync/rc-is-not-send.stderr
@@ -1,10 +1,10 @@
 error[E0277]: `Rc<()>` cannot be sent between threads safely
-  --> $DIR/no-send-res-ports.rs:25:19
+  --> $DIR/rc-is-not-send.rs:25:19
    |
-LL |       thread::spawn(move|| {
-   |       ------------- ^-----
+LL |       thread::spawn(move || {
+   |       ------------- ^------
    |       |             |
-   |  _____|_____________within this `{closure@$DIR/no-send-res-ports.rs:25:19: 25:25}`
+   |  _____|_____________within this `{closure@$DIR/rc-is-not-send.rs:25:19: 25:26}`
    | |     |
    | |     required by a bound introduced by this call
 LL | |
@@ -13,22 +13,22 @@ LL | |         println!("{:?}", y);
 LL | |     });
    | |_____^ `Rc<()>` cannot be sent between threads safely
    |
-   = help: within `{closure@$DIR/no-send-res-ports.rs:25:19: 25:25}`, the trait `Send` is not implemented for `Rc<()>`
+   = help: within `{closure@$DIR/rc-is-not-send.rs:25:19: 25:26}`, the trait `Send` is not implemented for `Rc<()>`
 note: required because it appears within the type `Port<()>`
-  --> $DIR/no-send-res-ports.rs:5:8
+  --> $DIR/rc-is-not-send.rs:7:8
    |
 LL | struct Port<T>(Rc<T>);
    |        ^^^^
 note: required because it appears within the type `Foo`
-  --> $DIR/no-send-res-ports.rs:9:12
+  --> $DIR/rc-is-not-send.rs:10:8
    |
-LL |     struct Foo {
-   |            ^^^
+LL | struct Foo {
+   |        ^^^
 note: required because it's used within this closure
-  --> $DIR/no-send-res-ports.rs:25:19
+  --> $DIR/rc-is-not-send.rs:25:19
    |
-LL |     thread::spawn(move|| {
-   |                   ^^^^^^
+LL |     thread::spawn(move || {
+   |                   ^^^^^^^
 note: required by a bound in `spawn`
   --> $SRC_DIR/std/src/thread/mod.rs:LL:COL
 
diff --git a/tests/ui/traits/associated_type_bound/116464-invalid-assoc-type-suggestion-in-trait-impl.stderr b/tests/ui/traits/associated_type_bound/116464-invalid-assoc-type-suggestion-in-trait-impl.stderr
index eedaae43f9a..54c0cf8ebee 100644
--- a/tests/ui/traits/associated_type_bound/116464-invalid-assoc-type-suggestion-in-trait-impl.stderr
+++ b/tests/ui/traits/associated_type_bound/116464-invalid-assoc-type-suggestion-in-trait-impl.stderr
@@ -1,9 +1,3 @@
-error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
-  --> $DIR/116464-invalid-assoc-type-suggestion-in-trait-impl.rs:9:9
-   |
-LL | impl<T, S> Trait<T> for i32 {
-   |         ^ unconstrained type parameter
-
 error[E0107]: trait takes 1 generic argument but 2 generic arguments were supplied
   --> $DIR/116464-invalid-assoc-type-suggestion-in-trait-impl.rs:15:12
    |
@@ -16,6 +10,12 @@ note: trait defined here, with 1 generic parameter: `T`
 LL | pub trait Trait<T> {
    |           ^^^^^ -
 
+error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
+  --> $DIR/116464-invalid-assoc-type-suggestion-in-trait-impl.rs:9:9
+   |
+LL | impl<T, S> Trait<T> for i32 {
+   |         ^ unconstrained type parameter
+
 error[E0107]: trait takes 1 generic argument but 2 generic arguments were supplied
   --> $DIR/116464-invalid-assoc-type-suggestion-in-trait-impl.rs:19:12
    |
diff --git a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr
index c6e0c699520..a165ef12060 100644
--- a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr
+++ b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr
@@ -16,7 +16,7 @@ LL | impl<T> const FromResidual for T {
    = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local
    = note: only traits defined in the current crate can be implemented for a type parameter
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/ice-119717-constant-lifetime.rs:9:31
    |
 LL |     fn from_residual(t: T) -> _ {
diff --git a/tests/ui/traits/constrained-type-params-trait-impl.stderr b/tests/ui/traits/constrained-type-params-trait-impl.stderr
index 2175129a8df..e59fad6e72d 100644
--- a/tests/ui/traits/constrained-type-params-trait-impl.stderr
+++ b/tests/ui/traits/constrained-type-params-trait-impl.stderr
@@ -35,6 +35,17 @@ error[E0207]: the type parameter `U` is not constrained by the impl trait, self
 LL | impl<T, U> Foo<T> for [isize; 1] {
    |         ^ unconstrained type parameter
 
+error[E0119]: conflicting implementations of trait `Bar`
+  --> $DIR/constrained-type-params-trait-impl.rs:48:1
+   |
+LL |   impl<T, U> Bar for T {
+   |   -------------------- first implementation here
+...
+LL | / impl<T, U> Bar for T
+LL | | where
+LL | |     T: Bar<Out = U>,
+   | |____________________^ conflicting implementation
+
 error[E0207]: the type parameter `U` is not constrained by the impl trait, self type, or predicates
   --> $DIR/constrained-type-params-trait-impl.rs:42:9
    |
@@ -59,17 +70,6 @@ error[E0207]: the type parameter `V` is not constrained by the impl trait, self
 LL | impl<T, U, V> Foo<T> for T
    |            ^ unconstrained type parameter
 
-error[E0119]: conflicting implementations of trait `Bar`
-  --> $DIR/constrained-type-params-trait-impl.rs:48:1
-   |
-LL |   impl<T, U> Bar for T {
-   |   -------------------- first implementation here
-...
-LL | / impl<T, U> Bar for T
-LL | | where
-LL | |     T: Bar<Out = U>,
-   | |____________________^ conflicting implementation
-
 error: aborting due to 9 previous errors
 
 Some errors have detailed explanations: E0119, E0207.
diff --git a/tests/ui/traits/deep-norm-pending.rs b/tests/ui/traits/deep-norm-pending.rs
index f56c3cfa3ea..d6c498dcf2b 100644
--- a/tests/ui/traits/deep-norm-pending.rs
+++ b/tests/ui/traits/deep-norm-pending.rs
@@ -8,9 +8,10 @@ trait Bar {
 }
 impl<T> Bar for T
 //~^ ERROR the trait bound `T: Foo` is not satisfied
-//~| ERROR the trait bound `T: Foo` is not satisfied
 where
     <T as Foo>::Assoc: Sized,
+    //~^ ERROR the trait bound `T: Foo` is not satisfied
+    //~| ERROR the trait bound `T: Foo` is not satisfied
 {
     fn method() {}
     //~^ ERROR the trait bound `T: Foo` is not satisfied
@@ -18,7 +19,6 @@ where
     //~| ERROR the trait bound `T: Foo` is not satisfied
     //~| ERROR the trait bound `T: Foo` is not satisfied
     //~| ERROR the trait bound `T: Foo` is not satisfied
-    //~| ERROR the trait bound `T: Foo` is not satisfied
 }
 
 fn main() {}
diff --git a/tests/ui/traits/deep-norm-pending.stderr b/tests/ui/traits/deep-norm-pending.stderr
index b95b9d7f4ae..c1d6120c390 100644
--- a/tests/ui/traits/deep-norm-pending.stderr
+++ b/tests/ui/traits/deep-norm-pending.stderr
@@ -1,20 +1,8 @@
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:15:5
-   |
-LL |     fn method() {}
-   |     ^^^^^^^^^^^ the trait `Foo` is not implemented for `T`
-   |
-help: consider further restricting type parameter `T` with trait `Foo`
-   |
-LL |     <T as Foo>::Assoc: Sized, T: Foo
-   |                               ++++++
-
-error[E0277]: the trait bound `T: Foo` is not satisfied
   --> $DIR/deep-norm-pending.rs:9:1
    |
 LL | / impl<T> Bar for T
 LL | |
-LL | |
 LL | | where
 LL | |     <T as Foo>::Assoc: Sized,
    | |_____________________________^ the trait `Foo` is not implemented for `T`
@@ -25,15 +13,10 @@ LL |     <T as Foo>::Assoc: Sized, T: Foo
    |                               ++++++
 
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:9:1
+  --> $DIR/deep-norm-pending.rs:16:5
    |
-LL | / impl<T> Bar for T
-LL | |
-LL | |
-LL | | where
-...  |
-LL | | }
-   | |_^ the trait `Foo` is not implemented for `T`
+LL |     fn method() {}
+   |     ^^^^^^^^^^^ the trait `Foo` is not implemented for `T`
    |
 help: consider further restricting type parameter `T` with trait `Foo`
    |
@@ -41,7 +24,7 @@ LL |     <T as Foo>::Assoc: Sized, T: Foo
    |                               ++++++
 
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:15:5
+  --> $DIR/deep-norm-pending.rs:16:5
    |
 LL |     fn method() {}
    |     ^^^^^^^^^^^ the trait `Foo` is not implemented for `T`
@@ -53,7 +36,7 @@ LL |     <T as Foo>::Assoc: Sized, T: Foo
    |                               ++++++
 
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:15:5
+  --> $DIR/deep-norm-pending.rs:16:5
    |
 LL |     fn method() {}
    |     ^^^^^^^^^^^ the trait `Foo` is not implemented for `T`
@@ -72,7 +55,7 @@ LL |     <T as Foo>::Assoc: Sized, T: Foo
    |                               ++++++
 
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:15:5
+  --> $DIR/deep-norm-pending.rs:16:5
    |
 LL |     fn method() {}
    |     ^^^^^^^^^^^ the trait `Foo` is not implemented for `T`
@@ -103,7 +86,18 @@ LL |     <T as Foo>::Assoc: Sized, T: Foo
    |                               ++++++
 
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:15:5
+  --> $DIR/deep-norm-pending.rs:12:24
+   |
+LL |     <T as Foo>::Assoc: Sized,
+   |                        ^^^^^ the trait `Foo` is not implemented for `T`
+   |
+help: consider further restricting type parameter `T` with trait `Foo`
+   |
+LL |     <T as Foo>::Assoc: Sized, T: Foo
+   |                               ++++++
+
+error[E0277]: the trait bound `T: Foo` is not satisfied
+  --> $DIR/deep-norm-pending.rs:16:5
    |
 LL |     fn method() {}
    |     ^^^^^^^^^^^ the trait `Foo` is not implemented for `T`
@@ -115,11 +109,12 @@ LL |     <T as Foo>::Assoc: Sized, T: Foo
    |                               ++++++
 
 error[E0277]: the trait bound `T: Foo` is not satisfied
-  --> $DIR/deep-norm-pending.rs:15:8
+  --> $DIR/deep-norm-pending.rs:12:24
    |
-LL |     fn method() {}
-   |        ^^^^^^ the trait `Foo` is not implemented for `T`
+LL |     <T as Foo>::Assoc: Sized,
+   |                        ^^^^^ the trait `Foo` is not implemented for `T`
    |
+   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: consider further restricting type parameter `T` with trait `Foo`
    |
 LL |     <T as Foo>::Assoc: Sized, T: Foo
diff --git a/tests/ui/invalid_dispatch_from_dyn_impls.rs b/tests/ui/traits/dispatch-from-dyn-invalid-impls.rs
index b1d4b261bab..f5f66ca69cf 100644
--- a/tests/ui/invalid_dispatch_from_dyn_impls.rs
+++ b/tests/ui/traits/dispatch-from-dyn-invalid-impls.rs
@@ -1,20 +1,30 @@
+//! Test various invalid implementations of DispatchFromDyn trait.
+//!
+//! DispatchFromDyn is a special trait used by the compiler for dyn-compatible dynamic dispatch.
+//! This checks that the compiler correctly rejects invalid implementations:
+//! - Structs with extra non-coercible fields
+//! - Structs with multiple pointer fields
+//! - Structs with no coercible fields
+//! - Structs with repr(C) or other incompatible representations
+//! - Structs with over-aligned fields
+
 #![feature(unsize, dispatch_from_dyn)]
 
-use std::{
-    ops::DispatchFromDyn,
-    marker::{Unsize, PhantomData},
-};
+use std::marker::{PhantomData, Unsize};
+use std::ops::DispatchFromDyn;
 
+// Extra field prevents DispatchFromDyn
 struct WrapperWithExtraField<T>(T, i32);
 
 impl<T, U> DispatchFromDyn<WrapperWithExtraField<U>> for WrapperWithExtraField<T>
 //~^ ERROR [E0378]
 where
-    T: DispatchFromDyn<U>,
-{}
-
+    T: DispatchFromDyn<U>
+{
+}
 
-struct MultiplePointers<T: ?Sized>{
+// Multiple pointer fields create ambiguous coercion
+struct MultiplePointers<T: ?Sized> {
     ptr1: *const T,
     ptr2: *const T,
 }
@@ -22,10 +32,11 @@ struct MultiplePointers<T: ?Sized>{
 impl<T: ?Sized, U: ?Sized> DispatchFromDyn<MultiplePointers<U>> for MultiplePointers<T>
 //~^ ERROR implementing `DispatchFromDyn` does not allow multiple fields to be coerced
 where
-    T: Unsize<U>,
-{}
-
+    T: Unsize<U>
+{
+}
 
+// No coercible fields (only PhantomData)
 struct NothingToCoerce<T: ?Sized> {
     data: PhantomData<T>,
 }
@@ -33,23 +44,28 @@ struct NothingToCoerce<T: ?Sized> {
 impl<T: ?Sized, U: ?Sized> DispatchFromDyn<NothingToCoerce<T>> for NothingToCoerce<U> {}
 //~^ ERROR implementing `DispatchFromDyn` requires a field to be coerced
 
+// repr(C) is incompatible with DispatchFromDyn
 #[repr(C)]
 struct HasReprC<T: ?Sized>(Box<T>);
 
 impl<T: ?Sized, U: ?Sized> DispatchFromDyn<HasReprC<U>> for HasReprC<T>
 //~^ ERROR [E0378]
 where
-    T: Unsize<U>,
-{}
+    T: Unsize<U>
+{
+}
 
+// Over-aligned fields are incompatible
 #[repr(align(64))]
 struct OverAlignedZst;
+
 struct OverAligned<T: ?Sized>(Box<T>, OverAlignedZst);
 
 impl<T: ?Sized, U: ?Sized> DispatchFromDyn<OverAligned<U>> for OverAligned<T>
 //~^ ERROR [E0378]
-    where
-        T: Unsize<U>,
-{}
+where
+    T: Unsize<U>
+{
+}
 
 fn main() {}
diff --git a/tests/ui/invalid_dispatch_from_dyn_impls.stderr b/tests/ui/traits/dispatch-from-dyn-invalid-impls.stderr
index 93ec6bbe089..676da0ce81f 100644
--- a/tests/ui/invalid_dispatch_from_dyn_impls.stderr
+++ b/tests/ui/traits/dispatch-from-dyn-invalid-impls.stderr
@@ -1,25 +1,25 @@
 error[E0378]: the trait `DispatchFromDyn` may only be implemented for structs containing the field being coerced, ZST fields with 1 byte alignment that don't mention type/const generics, and nothing else
-  --> $DIR/invalid_dispatch_from_dyn_impls.rs:10:1
+  --> $DIR/dispatch-from-dyn-invalid-impls.rs:19:1
    |
 LL | / impl<T, U> DispatchFromDyn<WrapperWithExtraField<U>> for WrapperWithExtraField<T>
 LL | |
 LL | | where
-LL | |     T: DispatchFromDyn<U>,
-   | |__________________________^
+LL | |     T: DispatchFromDyn<U>
+   | |_________________________^
    |
    = note: extra field `1` of type `i32` is not allowed
 
 error[E0375]: implementing `DispatchFromDyn` does not allow multiple fields to be coerced
-  --> $DIR/invalid_dispatch_from_dyn_impls.rs:22:1
+  --> $DIR/dispatch-from-dyn-invalid-impls.rs:32:1
    |
 LL | / impl<T: ?Sized, U: ?Sized> DispatchFromDyn<MultiplePointers<U>> for MultiplePointers<T>
 LL | |
 LL | | where
-LL | |     T: Unsize<U>,
-   | |_________________^
+LL | |     T: Unsize<U>
+   | |________________^
    |
 note: the trait `DispatchFromDyn` may only be implemented when a single field is being coerced
-  --> $DIR/invalid_dispatch_from_dyn_impls.rs:18:5
+  --> $DIR/dispatch-from-dyn-invalid-impls.rs:28:5
    |
 LL |     ptr1: *const T,
    |     ^^^^^^^^^^^^^^
@@ -27,7 +27,7 @@ LL |     ptr2: *const T,
    |     ^^^^^^^^^^^^^^
 
 error[E0374]: implementing `DispatchFromDyn` requires a field to be coerced
-  --> $DIR/invalid_dispatch_from_dyn_impls.rs:33:1
+  --> $DIR/dispatch-from-dyn-invalid-impls.rs:44:1
    |
 LL | impl<T: ?Sized, U: ?Sized> DispatchFromDyn<NothingToCoerce<T>> for NothingToCoerce<U> {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -35,22 +35,22 @@ LL | impl<T: ?Sized, U: ?Sized> DispatchFromDyn<NothingToCoerce<T>> for NothingT
    = note: expected a single field to be coerced, none found
 
 error[E0378]: structs implementing `DispatchFromDyn` may not have `#[repr(packed)]` or `#[repr(C)]`
-  --> $DIR/invalid_dispatch_from_dyn_impls.rs:39:1
+  --> $DIR/dispatch-from-dyn-invalid-impls.rs:51:1
    |
 LL | / impl<T: ?Sized, U: ?Sized> DispatchFromDyn<HasReprC<U>> for HasReprC<T>
 LL | |
 LL | | where
-LL | |     T: Unsize<U>,
-   | |_________________^
+LL | |     T: Unsize<U>
+   | |________________^
 
 error[E0378]: the trait `DispatchFromDyn` may only be implemented for structs containing the field being coerced, ZST fields with 1 byte alignment that don't mention type/const generics, and nothing else
-  --> $DIR/invalid_dispatch_from_dyn_impls.rs:49:1
+  --> $DIR/dispatch-from-dyn-invalid-impls.rs:64:1
    |
 LL | / impl<T: ?Sized, U: ?Sized> DispatchFromDyn<OverAligned<U>> for OverAligned<T>
 LL | |
-LL | |     where
-LL | |         T: Unsize<U>,
-   | |_____________________^
+LL | | where
+LL | |     T: Unsize<U>
+   | |________________^
    |
    = note: extra field `1` of type `OverAlignedZst` is not allowed
 
diff --git a/tests/ui/traits/dyn-star-drop-principal.rs b/tests/ui/traits/dyn-star-drop-principal.rs
deleted file mode 100644
index 1ad99070339..00000000000
--- a/tests/ui/traits/dyn-star-drop-principal.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-#![feature(dyn_star)]
-#![allow(incomplete_features)]
-
-trait Trait {}
-impl Trait for usize {}
-
-fn main() {
-    // We allow &dyn Trait + Send -> &dyn Send (i.e. dropping principal),
-    // but we don't (currently?) allow the same for dyn*
-    let x: dyn* Trait + Send = 1usize;
-    x as dyn* Send; //~ error: `dyn* Trait + Send` needs to have the same ABI as a pointer
-}
diff --git a/tests/ui/traits/dyn-star-drop-principal.stderr b/tests/ui/traits/dyn-star-drop-principal.stderr
deleted file mode 100644
index 721ae7e191e..00000000000
--- a/tests/ui/traits/dyn-star-drop-principal.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-error[E0277]: `dyn* Trait + Send` needs to have the same ABI as a pointer
-  --> $DIR/dyn-star-drop-principal.rs:11:5
-   |
-LL |     x as dyn* Send;
-   |     ^ `dyn* Trait + Send` needs to be a pointer-like type
-   |
-   = help: the trait `PointerLike` is not implemented for `dyn* Trait + Send`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/issue-11881.rs b/tests/ui/traits/encoder-trait-bounds-regression.rs
index 1abe0797203..292b921cdf7 100644
--- a/tests/ui/issue-11881.rs
+++ b/tests/ui/traits/encoder-trait-bounds-regression.rs
@@ -1,14 +1,23 @@
+//! Regression test for issue #11881
+//!
+//! Originally, the compiler would ICE when trying to parameterize on certain encoder types
+//! due to issues with higher-ranked trait bounds and lifetime inference. This test checks
+//! that various encoder patterns work correctly:
+//! - Generic encoders with associated error types
+//! - Higher-ranked trait bounds (for<'r> Encodable<JsonEncoder<'r>>)
+//! - Multiple encoder implementations for the same type
+//! - Polymorphic encoding functions
+
 //@ run-pass
 
 #![allow(unused_must_use)]
 #![allow(dead_code)]
 #![allow(unused_imports)]
 
-use std::fmt;
-use std::io::prelude::*;
 use std::io::Cursor;
-use std::slice;
+use std::io::prelude::*;
 use std::marker::PhantomData;
+use std::{fmt, slice};
 
 trait Encoder {
     type Error;
@@ -45,7 +54,6 @@ impl Encoder for OpaqueEncoder {
     type Error = ();
 }
 
-
 struct Foo {
     baz: bool,
 }
@@ -69,7 +77,6 @@ impl<S: Encoder> Encodable<S> for Bar {
 enum WireProtocol {
     JSON,
     Opaque,
-    // ...
 }
 
 fn encode_json<T: for<'a> Encodable<JsonEncoder<'a>>>(val: &T, wr: &mut Cursor<Vec<u8>>) {
diff --git a/tests/ui/traits/enum-negative-send-impl.rs b/tests/ui/traits/enum-negative-send-impl.rs
new file mode 100644
index 00000000000..6bff42e9999
--- /dev/null
+++ b/tests/ui/traits/enum-negative-send-impl.rs
@@ -0,0 +1,22 @@
+//! Test that enums inherit Send/!Send properties from their variants.
+//!
+//! Uses the unstable `negative_impls` feature to explicitly opt-out of Send.
+
+#![feature(negative_impls)]
+
+use std::marker::Send;
+
+struct NoSend;
+impl !Send for NoSend {}
+
+enum Container {
+    WithNoSend(NoSend),
+}
+
+fn requires_send<T: Send>(_: T) {}
+
+fn main() {
+    let container = Container::WithNoSend(NoSend);
+    requires_send(container);
+    //~^ ERROR `NoSend` cannot be sent between threads safely
+}
diff --git a/tests/ui/traits/enum-negative-send-impl.stderr b/tests/ui/traits/enum-negative-send-impl.stderr
new file mode 100644
index 00000000000..1992becccf4
--- /dev/null
+++ b/tests/ui/traits/enum-negative-send-impl.stderr
@@ -0,0 +1,23 @@
+error[E0277]: `NoSend` cannot be sent between threads safely
+  --> $DIR/enum-negative-send-impl.rs:20:19
+   |
+LL |     requires_send(container);
+   |     ------------- ^^^^^^^^^ `NoSend` cannot be sent between threads safely
+   |     |
+   |     required by a bound introduced by this call
+   |
+   = help: within `Container`, the trait `Send` is not implemented for `NoSend`
+note: required because it appears within the type `Container`
+  --> $DIR/enum-negative-send-impl.rs:12:6
+   |
+LL | enum Container {
+   |      ^^^^^^^^^
+note: required by a bound in `requires_send`
+  --> $DIR/enum-negative-send-impl.rs:16:21
+   |
+LL | fn requires_send<T: Send>(_: T) {}
+   |                     ^^^^ required by this bound in `requires_send`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/traits/enum-negative-sync-impl.rs b/tests/ui/traits/enum-negative-sync-impl.rs
new file mode 100644
index 00000000000..aa81a9fbbf9
--- /dev/null
+++ b/tests/ui/traits/enum-negative-sync-impl.rs
@@ -0,0 +1,22 @@
+//! Test that enums inherit Sync/!Sync properties from their variants.
+//!
+//! Uses the unstable `negative_impls` feature to explicitly opt-out of Sync.
+
+#![feature(negative_impls)]
+
+use std::marker::Sync;
+
+struct NoSync;
+impl !Sync for NoSync {}
+
+enum Container {
+    WithNoSync(NoSync),
+}
+
+fn requires_sync<T: Sync>(_: T) {}
+
+fn main() {
+    let container = Container::WithNoSync(NoSync);
+    requires_sync(container);
+    //~^ ERROR `NoSync` cannot be shared between threads safely [E0277]
+}
diff --git a/tests/ui/traits/enum-negative-sync-impl.stderr b/tests/ui/traits/enum-negative-sync-impl.stderr
new file mode 100644
index 00000000000..a97b7a36a7b
--- /dev/null
+++ b/tests/ui/traits/enum-negative-sync-impl.stderr
@@ -0,0 +1,23 @@
+error[E0277]: `NoSync` cannot be shared between threads safely
+  --> $DIR/enum-negative-sync-impl.rs:20:19
+   |
+LL |     requires_sync(container);
+   |     ------------- ^^^^^^^^^ `NoSync` cannot be shared between threads safely
+   |     |
+   |     required by a bound introduced by this call
+   |
+   = help: within `Container`, the trait `Sync` is not implemented for `NoSync`
+note: required because it appears within the type `Container`
+  --> $DIR/enum-negative-sync-impl.rs:12:6
+   |
+LL | enum Container {
+   |      ^^^^^^^^^
+note: required by a bound in `requires_sync`
+  --> $DIR/enum-negative-sync-impl.rs:16:21
+   |
+LL | fn requires_sync<T: Sync>(_: T) {}
+   |                     ^^^^ required by this bound in `requires_sync`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/traits/eval-caching-error-region.rs b/tests/ui/traits/eval-caching-error-region.rs
new file mode 100644
index 00000000000..831b5ab80c1
--- /dev/null
+++ b/tests/ui/traits/eval-caching-error-region.rs
@@ -0,0 +1,23 @@
+// Regression test for #132882.
+
+use std::ops::Add;
+
+pub trait Numoid: Sized
+where
+    &'missing Self: Add<Self>,
+    //~^ ERROR use of undeclared lifetime name `'missing`
+{
+}
+
+// Proving `N: Numoid`'s well-formedness causes us to have to prove `&'missing N: Add<N>`.
+// Since `'missing` is a region error, that will lead to us consider the predicate to hold,
+// since it references errors. Since the freshener turns error regions into fresh regions,
+// this means that subsequent lookups of `&'?0 N: Add<N>` will also hit this cache entry
+// even if candidate assembly can't assemble anything for `&'?0 N: Add<?1>` anyways. This
+// led to an ICE.
+pub fn compute<N: Numoid>(a: N) {
+    let _ = &a + a;
+    //~^ ERROR cannot add `N` to `&N`
+}
+
+fn main() {}
diff --git a/tests/ui/traits/eval-caching-error-region.stderr b/tests/ui/traits/eval-caching-error-region.stderr
new file mode 100644
index 00000000000..6365d242d2e
--- /dev/null
+++ b/tests/ui/traits/eval-caching-error-region.stderr
@@ -0,0 +1,33 @@
+error[E0261]: use of undeclared lifetime name `'missing`
+  --> $DIR/eval-caching-error-region.rs:7:6
+   |
+LL |     &'missing Self: Add<Self>,
+   |      ^^^^^^^^ undeclared lifetime
+   |
+   = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html
+help: consider making the bound lifetime-generic with a new `'missing` lifetime
+   |
+LL |     for<'missing> &'missing Self: Add<Self>,
+   |     +++++++++++++
+help: consider introducing lifetime `'missing` here
+   |
+LL | pub trait Numoid<'missing>: Sized
+   |                 ++++++++++
+
+error[E0369]: cannot add `N` to `&N`
+  --> $DIR/eval-caching-error-region.rs:19:16
+   |
+LL |     let _ = &a + a;
+   |             -- ^ - N
+   |             |
+   |             &N
+   |
+help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
+   |
+LL | pub fn compute<N: Numoid>(a: N) where &N: Add<N> {
+   |                                 ++++++++++++++++
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0261, E0369.
+For more information about an error, try `rustc --explain E0261`.
diff --git a/tests/ui/traits/issue-105231.stderr b/tests/ui/traits/issue-105231.stderr
index e113f8382b2..b048548018a 100644
--- a/tests/ui/traits/issue-105231.stderr
+++ b/tests/ui/traits/issue-105231.stderr
@@ -1,3 +1,14 @@
+error: type parameter `T` is only used recursively
+  --> $DIR/issue-105231.rs:1:15
+   |
+LL | struct A<T>(B<T>);
+   |          -    ^
+   |          |
+   |          type parameter must be used non-recursively in the definition
+   |
+   = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
+   = note: all type parameters must be used in a non-recursive way in order to constrain their variance
+
 error[E0072]: recursive types `A` and `B` have infinite size
   --> $DIR/issue-105231.rs:1:1
    |
@@ -16,17 +27,6 @@ LL ~ struct B<T>(Box<A<A<T>>>);
    |
 
 error: type parameter `T` is only used recursively
-  --> $DIR/issue-105231.rs:1:15
-   |
-LL | struct A<T>(B<T>);
-   |          -    ^
-   |          |
-   |          type parameter must be used non-recursively in the definition
-   |
-   = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
-   = note: all type parameters must be used in a non-recursive way in order to constrain their variance
-
-error: type parameter `T` is only used recursively
   --> $DIR/issue-105231.rs:4:17
    |
 LL | struct B<T>(A<A<T>>);
diff --git a/tests/ui/traits/issue-78372.stderr b/tests/ui/traits/issue-78372.stderr
index fbc60ce5d83..a1c772f58e1 100644
--- a/tests/ui/traits/issue-78372.stderr
+++ b/tests/ui/traits/issue-78372.stderr
@@ -56,6 +56,12 @@ LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
    = help: add `#![feature(dispatch_from_dyn)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
+error[E0377]: the trait `DispatchFromDyn` may only be implemented for a coercion between structures
+  --> $DIR/issue-78372.rs:3:1
+   |
+LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
 error[E0307]: invalid `self` parameter type: `Smaht<Self, T>`
   --> $DIR/issue-78372.rs:9:18
    |
@@ -65,12 +71,6 @@ LL |     fn foo(self: Smaht<Self, T>);
    = note: type of `self` must be `Self` or a type that dereferences to it
    = help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)
 
-error[E0377]: the trait `DispatchFromDyn` may only be implemented for a coercion between structures
-  --> $DIR/issue-78372.rs:3:1
-   |
-LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
 error: aborting due to 7 previous errors
 
 Some errors have detailed explanations: E0307, E0377, E0412, E0658.
diff --git a/tests/ui/traits/issue-87558.stderr b/tests/ui/traits/issue-87558.stderr
index 4cc3ec2ea8b..dc5bd6ece36 100644
--- a/tests/ui/traits/issue-87558.stderr
+++ b/tests/ui/traits/issue-87558.stderr
@@ -24,6 +24,14 @@ help: parenthesized trait syntax expands to `Fn<(&isize,), Output=()>`
 LL | impl Fn(&isize) for Error {
    |      ^^^^^^^^^^
 
+error[E0046]: not all trait items implemented, missing: `call`
+  --> $DIR/issue-87558.rs:3:1
+   |
+LL | impl Fn(&isize) for Error {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `call` in implementation
+   |
+   = help: implement the missing item: `fn call(&self, _: (&isize,)) -> <Self as FnOnce<(&isize,)>>::Output { todo!() }`
+
 error[E0277]: expected a `FnMut(&isize)` closure, found `Error`
   --> $DIR/issue-87558.rs:3:21
    |
@@ -34,14 +42,6 @@ LL | impl Fn(&isize) for Error {
 note: required by a bound in `Fn`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
-error[E0046]: not all trait items implemented, missing: `call`
-  --> $DIR/issue-87558.rs:3:1
-   |
-LL | impl Fn(&isize) for Error {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `call` in implementation
-   |
-   = help: implement the missing item: `fn call(&self, _: (&isize,)) -> <Self as FnOnce<(&isize,)>>::Output { todo!() }`
-
 error: aborting due to 5 previous errors
 
 Some errors have detailed explanations: E0046, E0183, E0229, E0277, E0407.
diff --git a/tests/ui/traits/maybe-trait-bounds-forbidden-locations.rs b/tests/ui/traits/maybe-trait-bounds-forbidden-locations.rs
new file mode 100644
index 00000000000..04963c98765
--- /dev/null
+++ b/tests/ui/traits/maybe-trait-bounds-forbidden-locations.rs
@@ -0,0 +1,18 @@
+//! Test that ?Trait bounds are forbidden in supertraits and trait object types.
+//!
+//! While `?Sized` and other maybe bounds are allowed in type parameter bounds and where clauses,
+//! they are explicitly forbidden in certain syntactic positions:
+//! - As supertraits in trait definitions
+//! - In trait object type expressions
+//!
+//! See https://github.com/rust-lang/rust/issues/20503
+
+trait Tr: ?Sized {}
+//~^ ERROR `?Trait` is not permitted in supertraits
+
+type A1 = dyn Tr + (?Sized);
+//~^ ERROR `?Trait` is not permitted in trait object types
+type A2 = dyn for<'a> Tr + (?Sized);
+//~^ ERROR `?Trait` is not permitted in trait object types
+
+fn main() {}
diff --git a/tests/ui/maybe-bounds.stderr b/tests/ui/traits/maybe-trait-bounds-forbidden-locations.stderr
index 230d11fd0ae..bd0baa580bd 100644
--- a/tests/ui/maybe-bounds.stderr
+++ b/tests/ui/traits/maybe-trait-bounds-forbidden-locations.stderr
@@ -1,5 +1,5 @@
 error[E0658]: `?Trait` is not permitted in supertraits
-  --> $DIR/maybe-bounds.rs:1:11
+  --> $DIR/maybe-trait-bounds-forbidden-locations.rs:10:11
    |
 LL | trait Tr: ?Sized {}
    |           ^^^^^^
@@ -9,7 +9,7 @@ LL | trait Tr: ?Sized {}
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: `?Trait` is not permitted in trait object types
-  --> $DIR/maybe-bounds.rs:4:20
+  --> $DIR/maybe-trait-bounds-forbidden-locations.rs:13:20
    |
 LL | type A1 = dyn Tr + (?Sized);
    |                    ^^^^^^^^
@@ -18,7 +18,7 @@ LL | type A1 = dyn Tr + (?Sized);
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: `?Trait` is not permitted in trait object types
-  --> $DIR/maybe-bounds.rs:6:28
+  --> $DIR/maybe-trait-bounds-forbidden-locations.rs:15:28
    |
 LL | type A2 = dyn for<'a> Tr + (?Sized);
    |                            ^^^^^^^^
diff --git a/tests/ui/traits/method-argument-mismatch-variance-ice-119867.stderr b/tests/ui/traits/method-argument-mismatch-variance-ice-119867.stderr
index d535c39639f..6472ac7363b 100644
--- a/tests/ui/traits/method-argument-mismatch-variance-ice-119867.stderr
+++ b/tests/ui/traits/method-argument-mismatch-variance-ice-119867.stderr
@@ -1,4 +1,4 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/method-argument-mismatch-variance-ice-119867.rs:8:23
    |
 LL |     fn deserialize(s: _) {}
diff --git a/tests/ui/traits/next-solver/issue-118950-root-region.stderr b/tests/ui/traits/next-solver/issue-118950-root-region.stderr
index 45fa33dff52..391272b8d3b 100644
--- a/tests/ui/traits/next-solver/issue-118950-root-region.stderr
+++ b/tests/ui/traits/next-solver/issue-118950-root-region.stderr
@@ -14,10 +14,10 @@ LL | #![feature(lazy_type_alias)]
    = note: `#[warn(incomplete_features)]` on by default
 
 error[E0277]: the trait bound `*const T: ToUnit<'a>` is not satisfied
-  --> $DIR/issue-118950-root-region.rs:14:21
+  --> $DIR/issue-118950-root-region.rs:14:1
    |
 LL | type Assoc<'a, T> = <*const T as ToUnit<'a>>::Unit;
-   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `ToUnit<'a>` is not implemented for `*const T`
+   | ^^^^^^^^^^^^^^^^^ the trait `ToUnit<'a>` is not implemented for `*const T`
    |
 help: this trait has no implementations, consider adding one
   --> $DIR/issue-118950-root-region.rs:8:1
diff --git a/tests/ui/traits/rc-not-send.rs b/tests/ui/traits/rc-not-send.rs
new file mode 100644
index 00000000000..83084c6173a
--- /dev/null
+++ b/tests/ui/traits/rc-not-send.rs
@@ -0,0 +1,11 @@
+//! Test that `Rc<T>` does not implement `Send`.
+
+use std::rc::Rc;
+
+fn requires_send<T: Send>(_: T) {}
+
+fn main() {
+    let rc_value = Rc::new(5);
+    requires_send(rc_value);
+    //~^ ERROR `Rc<{integer}>` cannot be sent between threads safely
+}
diff --git a/tests/ui/traits/rc-not-send.stderr b/tests/ui/traits/rc-not-send.stderr
new file mode 100644
index 00000000000..d6171a39ad0
--- /dev/null
+++ b/tests/ui/traits/rc-not-send.stderr
@@ -0,0 +1,22 @@
+error[E0277]: `Rc<{integer}>` cannot be sent between threads safely
+  --> $DIR/rc-not-send.rs:9:19
+   |
+LL |     requires_send(rc_value);
+   |     ------------- ^^^^^^^^ `Rc<{integer}>` cannot be sent between threads safely
+   |     |
+   |     required by a bound introduced by this call
+   |
+   = help: the trait `Send` is not implemented for `Rc<{integer}>`
+note: required by a bound in `requires_send`
+  --> $DIR/rc-not-send.rs:5:21
+   |
+LL | fn requires_send<T: Send>(_: T) {}
+   |                     ^^^^ required by this bound in `requires_send`
+help: consider dereferencing here
+   |
+LL |     requires_send(*rc_value);
+   |                   +
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/traits/struct-negative-sync-impl.rs b/tests/ui/traits/struct-negative-sync-impl.rs
new file mode 100644
index 00000000000..d32846276f6
--- /dev/null
+++ b/tests/ui/traits/struct-negative-sync-impl.rs
@@ -0,0 +1,21 @@
+//! Test negative Sync implementation on structs.
+//!
+//! Uses the unstable `negative_impls` feature to explicitly opt-out of Sync.
+
+#![feature(negative_impls)]
+
+use std::marker::Sync;
+
+struct NotSync {
+    value: isize,
+}
+
+impl !Sync for NotSync {}
+
+fn requires_sync<T: Sync>(_: T) {}
+
+fn main() {
+    let not_sync = NotSync { value: 5 };
+    requires_sync(not_sync);
+    //~^ ERROR `NotSync` cannot be shared between threads safely [E0277]
+}
diff --git a/tests/ui/traits/struct-negative-sync-impl.stderr b/tests/ui/traits/struct-negative-sync-impl.stderr
new file mode 100644
index 00000000000..c5fd13f42e5
--- /dev/null
+++ b/tests/ui/traits/struct-negative-sync-impl.stderr
@@ -0,0 +1,18 @@
+error[E0277]: `NotSync` cannot be shared between threads safely
+  --> $DIR/struct-negative-sync-impl.rs:19:19
+   |
+LL |     requires_sync(not_sync);
+   |     ------------- ^^^^^^^^ `NotSync` cannot be shared between threads safely
+   |     |
+   |     required by a bound introduced by this call
+   |
+   = help: the trait `Sync` is not implemented for `NotSync`
+note: required by a bound in `requires_sync`
+  --> $DIR/struct-negative-sync-impl.rs:15:21
+   |
+LL | fn requires_sync<T: Sync>(_: T) {}
+   |                     ^^^^ required by this bound in `requires_sync`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.stderr b/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.stderr
index b9988e2e6d3..4264f2688ac 100644
--- a/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.stderr
+++ b/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.stderr
@@ -9,7 +9,7 @@ note: cycle used when checking that `A` is well-formed
   --> $DIR/cyclic-trait-resolution.rs:1:1
    |
 LL | trait A: B + A {}
-   | ^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^
    = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error[E0391]: cycle detected when computing the implied predicates of `A`
diff --git a/tests/ui/traits/trait-upcasting/dyn-to-dyn-star.rs b/tests/ui/traits/trait-upcasting/dyn-to-dyn-star.rs
deleted file mode 100644
index 5936c93efad..00000000000
--- a/tests/ui/traits/trait-upcasting/dyn-to-dyn-star.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// While somewhat nonsensical, this is a cast from a wide pointer to a thin pointer.
-// Thus, we don't need to check an unsize goal here; there isn't any vtable casting
-// happening at all.
-
-// Regression test for <https://github.com/rust-lang/rust/issues/137579>.
-
-//@ check-pass
-
-#![allow(incomplete_features)]
-#![feature(dyn_star)]
-
-trait Foo {}
-trait Bar {}
-
-fn cast(x: *const dyn Foo) {
-    x as *const dyn* Bar;
-}
-
-fn main() {}
diff --git a/tests/ui/traits/unconstrained-projection-normalization-2.current.stderr b/tests/ui/traits/unconstrained-projection-normalization-2.current.stderr
index 2bb389c6ec1..9ce0e8d957d 100644
--- a/tests/ui/traits/unconstrained-projection-normalization-2.current.stderr
+++ b/tests/ui/traits/unconstrained-projection-normalization-2.current.stderr
@@ -4,6 +4,31 @@ error[E0207]: the type parameter `T` is not constrained by the impl trait, self
 LL | impl<T: ?Sized> Every for Thing {
    |      ^ unconstrained type parameter
 
-error: aborting due to 1 previous error
+error[E0277]: the size for values of type `T` cannot be known at compilation time
+  --> $DIR/unconstrained-projection-normalization-2.rs:16:18
+   |
+LL | impl<T: ?Sized> Every for Thing {
+   |      - this type parameter needs to be `Sized`
+LL |
+LL |     type Assoc = T;
+   |                  ^ doesn't have a size known at compile-time
+   |
+note: required by a bound in `Every::Assoc`
+  --> $DIR/unconstrained-projection-normalization-2.rs:12:5
+   |
+LL |     type Assoc;
+   |     ^^^^^^^^^^^ required by this bound in `Every::Assoc`
+help: consider removing the `?Sized` bound to make the type parameter `Sized`
+   |
+LL - impl<T: ?Sized> Every for Thing {
+LL + impl<T> Every for Thing {
+   |
+help: consider relaxing the implicit `Sized` restriction
+   |
+LL |     type Assoc: ?Sized;
+   |               ++++++++
+
+error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0207, E0277.
+For more information about an error, try `rustc --explain E0207`.
diff --git a/tests/ui/traits/unconstrained-projection-normalization-2.next.stderr b/tests/ui/traits/unconstrained-projection-normalization-2.next.stderr
index 3eacab33e46..2da655afa93 100644
--- a/tests/ui/traits/unconstrained-projection-normalization-2.next.stderr
+++ b/tests/ui/traits/unconstrained-projection-normalization-2.next.stderr
@@ -4,13 +4,37 @@ error[E0207]: the type parameter `T` is not constrained by the impl trait, self
 LL | impl<T: ?Sized> Every for Thing {
    |      ^ unconstrained type parameter
 
+error[E0277]: the size for values of type `T` cannot be known at compilation time
+  --> $DIR/unconstrained-projection-normalization-2.rs:16:18
+   |
+LL | impl<T: ?Sized> Every for Thing {
+   |      - this type parameter needs to be `Sized`
+LL |
+LL |     type Assoc = T;
+   |                  ^ doesn't have a size known at compile-time
+   |
+note: required by a bound in `Every::Assoc`
+  --> $DIR/unconstrained-projection-normalization-2.rs:12:5
+   |
+LL |     type Assoc;
+   |     ^^^^^^^^^^^ required by this bound in `Every::Assoc`
+help: consider removing the `?Sized` bound to make the type parameter `Sized`
+   |
+LL - impl<T: ?Sized> Every for Thing {
+LL + impl<T> Every for Thing {
+   |
+help: consider relaxing the implicit `Sized` restriction
+   |
+LL |     type Assoc: ?Sized;
+   |               ++++++++
+
 error[E0282]: type annotations needed
-  --> $DIR/unconstrained-projection-normalization-2.rs:19:11
+  --> $DIR/unconstrained-projection-normalization-2.rs:20:11
    |
 LL | fn foo(_: <Thing as Every>::Assoc) {}
    |           ^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type for associated type `<Thing as Every>::Assoc`
 
-error: aborting due to 2 previous errors
+error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0207, E0282.
+Some errors have detailed explanations: E0207, E0277, E0282.
 For more information about an error, try `rustc --explain E0207`.
diff --git a/tests/ui/traits/unconstrained-projection-normalization-2.rs b/tests/ui/traits/unconstrained-projection-normalization-2.rs
index 9d95c73eea7..899d67571e7 100644
--- a/tests/ui/traits/unconstrained-projection-normalization-2.rs
+++ b/tests/ui/traits/unconstrained-projection-normalization-2.rs
@@ -12,8 +12,9 @@ pub trait Every {
     type Assoc;
 }
 impl<T: ?Sized> Every for Thing {
-//~^ ERROR the type parameter `T` is not constrained
+    //~^ ERROR the type parameter `T` is not constrained
     type Assoc = T;
+    //~^ ERROR: the size for values of type `T` cannot be known at compilation time
 }
 
 fn foo(_: <Thing as Every>::Assoc) {}
diff --git a/tests/ui/traits/unconstrained-projection-normalization.current.stderr b/tests/ui/traits/unconstrained-projection-normalization.current.stderr
index 991f0e8ba66..c52e8dd68aa 100644
--- a/tests/ui/traits/unconstrained-projection-normalization.current.stderr
+++ b/tests/ui/traits/unconstrained-projection-normalization.current.stderr
@@ -4,6 +4,31 @@ error[E0207]: the type parameter `T` is not constrained by the impl trait, self
 LL | impl<T: ?Sized> Every for Thing {
    |      ^ unconstrained type parameter
 
-error: aborting due to 1 previous error
+error[E0277]: the size for values of type `T` cannot be known at compilation time
+  --> $DIR/unconstrained-projection-normalization.rs:15:18
+   |
+LL | impl<T: ?Sized> Every for Thing {
+   |      - this type parameter needs to be `Sized`
+LL |
+LL |     type Assoc = T;
+   |                  ^ doesn't have a size known at compile-time
+   |
+note: required by a bound in `Every::Assoc`
+  --> $DIR/unconstrained-projection-normalization.rs:11:5
+   |
+LL |     type Assoc;
+   |     ^^^^^^^^^^^ required by this bound in `Every::Assoc`
+help: consider removing the `?Sized` bound to make the type parameter `Sized`
+   |
+LL - impl<T: ?Sized> Every for Thing {
+LL + impl<T> Every for Thing {
+   |
+help: consider relaxing the implicit `Sized` restriction
+   |
+LL |     type Assoc: ?Sized;
+   |               ++++++++
+
+error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0207, E0277.
+For more information about an error, try `rustc --explain E0207`.
diff --git a/tests/ui/traits/unconstrained-projection-normalization.next.stderr b/tests/ui/traits/unconstrained-projection-normalization.next.stderr
index 991f0e8ba66..c52e8dd68aa 100644
--- a/tests/ui/traits/unconstrained-projection-normalization.next.stderr
+++ b/tests/ui/traits/unconstrained-projection-normalization.next.stderr
@@ -4,6 +4,31 @@ error[E0207]: the type parameter `T` is not constrained by the impl trait, self
 LL | impl<T: ?Sized> Every for Thing {
    |      ^ unconstrained type parameter
 
-error: aborting due to 1 previous error
+error[E0277]: the size for values of type `T` cannot be known at compilation time
+  --> $DIR/unconstrained-projection-normalization.rs:15:18
+   |
+LL | impl<T: ?Sized> Every for Thing {
+   |      - this type parameter needs to be `Sized`
+LL |
+LL |     type Assoc = T;
+   |                  ^ doesn't have a size known at compile-time
+   |
+note: required by a bound in `Every::Assoc`
+  --> $DIR/unconstrained-projection-normalization.rs:11:5
+   |
+LL |     type Assoc;
+   |     ^^^^^^^^^^^ required by this bound in `Every::Assoc`
+help: consider removing the `?Sized` bound to make the type parameter `Sized`
+   |
+LL - impl<T: ?Sized> Every for Thing {
+LL + impl<T> Every for Thing {
+   |
+help: consider relaxing the implicit `Sized` restriction
+   |
+LL |     type Assoc: ?Sized;
+   |               ++++++++
+
+error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0207, E0277.
+For more information about an error, try `rustc --explain E0207`.
diff --git a/tests/ui/traits/unconstrained-projection-normalization.rs b/tests/ui/traits/unconstrained-projection-normalization.rs
index fa4ab7fec4c..8e9444533a8 100644
--- a/tests/ui/traits/unconstrained-projection-normalization.rs
+++ b/tests/ui/traits/unconstrained-projection-normalization.rs
@@ -11,8 +11,9 @@ pub trait Every {
     type Assoc;
 }
 impl<T: ?Sized> Every for Thing {
-//~^ ERROR the type parameter `T` is not constrained
+    //~^ ERROR the type parameter `T` is not constrained
     type Assoc = T;
+    //~^ ERROR: the size for values of type `T` cannot be known at compilation time
 }
 
 static I: <Thing as Every>::Assoc = 3;
diff --git a/tests/ui/type-alias-enum-variants/module-type-args-error.rs b/tests/ui/type-alias-enum-variants/module-type-args-error.rs
new file mode 100644
index 00000000000..9f7dae4f4f5
--- /dev/null
+++ b/tests/ui/type-alias-enum-variants/module-type-args-error.rs
@@ -0,0 +1,16 @@
+//! Test that type arguments are properly rejected on modules.
+//!
+//! Related PR: https://github.com/rust-lang/rust/pull/56225 (RFC 2338 implementation)
+
+mod Mod {
+    pub struct FakeVariant<T>(pub T);
+}
+
+fn main() {
+    // This should work fine - normal generic struct constructor
+    Mod::FakeVariant::<i32>(0);
+
+    // This should error - type arguments not allowed on modules
+    Mod::<i32>::FakeVariant(0);
+    //~^ ERROR type arguments are not allowed on module `Mod` [E0109]
+}
diff --git a/tests/ui/mod-subitem-as-enum-variant.stderr b/tests/ui/type-alias-enum-variants/module-type-args-error.stderr
index 92d972eba42..4c59d19eaa7 100644
--- a/tests/ui/mod-subitem-as-enum-variant.stderr
+++ b/tests/ui/type-alias-enum-variants/module-type-args-error.stderr
@@ -1,5 +1,5 @@
 error[E0109]: type arguments are not allowed on module `Mod`
-  --> $DIR/mod-subitem-as-enum-variant.rs:7:11
+  --> $DIR/module-type-args-error.rs:14:11
    |
 LL |     Mod::<i32>::FakeVariant(0);
    |     ---   ^^^ type argument not allowed
diff --git a/tests/ui/typeck/issue-13853-5.rs b/tests/ui/typeck/issue-13853-5.rs
index fc97c6c67d6..47596aa4927 100644
--- a/tests/ui/typeck/issue-13853-5.rs
+++ b/tests/ui/typeck/issue-13853-5.rs
@@ -1,4 +1,4 @@
-trait Deserializer<'a> { }
+trait Deserializer<'a> {}
 
 trait Deserializable {
     fn deserialize_token<'a, D: Deserializer<'a>>(_: D, _: &'a str) -> Self;
@@ -8,6 +8,7 @@ impl<'a, T: Deserializable> Deserializable for &'a str {
     //~^ ERROR type parameter `T` is not constrained
     fn deserialize_token<D: Deserializer<'a>>(_x: D, _y: &'a str) -> &'a str {
         //~^ ERROR mismatched types
+        //~| ERROR do not match the trait declaration
     }
 }
 
diff --git a/tests/ui/typeck/issue-13853-5.stderr b/tests/ui/typeck/issue-13853-5.stderr
index 4e483a0a58e..bb967b07b81 100644
--- a/tests/ui/typeck/issue-13853-5.stderr
+++ b/tests/ui/typeck/issue-13853-5.stderr
@@ -1,3 +1,12 @@
+error[E0195]: lifetime parameters or bounds on associated function `deserialize_token` do not match the trait declaration
+  --> $DIR/issue-13853-5.rs:9:25
+   |
+LL |     fn deserialize_token<'a, D: Deserializer<'a>>(_: D, _: &'a str) -> Self;
+   |                         ------------------------- lifetimes in impl do not match this associated function in trait
+...
+LL |     fn deserialize_token<D: Deserializer<'a>>(_x: D, _y: &'a str) -> &'a str {
+   |                         ^^^^^^^^^^^^^^^^^^^^^ lifetimes do not match associated function in trait
+
 error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates
   --> $DIR/issue-13853-5.rs:7:10
    |
@@ -19,7 +28,7 @@ LL ~         _y
 LL ~
    |
 
-error: aborting due to 2 previous errors
+error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0207, E0308.
-For more information about an error, try `rustc --explain E0207`.
+Some errors have detailed explanations: E0195, E0207, E0308.
+For more information about an error, try `rustc --explain E0195`.
diff --git a/tests/ui/typeck/issue-74086.rs b/tests/ui/typeck/issue-74086.rs
index 1993cc7db35..c00ba81f551 100644
--- a/tests/ui/typeck/issue-74086.rs
+++ b/tests/ui/typeck/issue-74086.rs
@@ -1,4 +1,4 @@
 fn main() {
     static BUG: fn(_) -> u8 = |_| 8;
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for static items
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for statics
 }
diff --git a/tests/ui/typeck/issue-74086.stderr b/tests/ui/typeck/issue-74086.stderr
index 25f454ac0c3..02c48201918 100644
--- a/tests/ui/typeck/issue-74086.stderr
+++ b/tests/ui/typeck/issue-74086.stderr
@@ -1,4 +1,4 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/issue-74086.rs:2:20
    |
 LL |     static BUG: fn(_) -> u8 = |_| 8;
diff --git a/tests/ui/typeck/issue-75889.stderr b/tests/ui/typeck/issue-75889.stderr
index 1438f481ec7..c76f7c60b2e 100644
--- a/tests/ui/typeck/issue-75889.stderr
+++ b/tests/ui/typeck/issue-75889.stderr
@@ -1,10 +1,10 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
   --> $DIR/issue-75889.rs:3:24
    |
 LL | const FOO: dyn Fn() -> _ = "";
    |                        ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/issue-75889.rs:4:25
    |
 LL | static BOO: dyn Fn() -> _ = "";
diff --git a/tests/ui/typeck/issue-81885.rs b/tests/ui/typeck/issue-81885.rs
index d73c77b8f3a..d675231d898 100644
--- a/tests/ui/typeck/issue-81885.rs
+++ b/tests/ui/typeck/issue-81885.rs
@@ -1,7 +1,7 @@
 const TEST4: fn() -> _ = 42;
-//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constant items
+//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
 
 fn main() {
     const TEST5: fn() -> _ = 42;
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for constant items
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
 }
diff --git a/tests/ui/typeck/issue-81885.stderr b/tests/ui/typeck/issue-81885.stderr
index 25a6bb632ef..414fe548883 100644
--- a/tests/ui/typeck/issue-81885.stderr
+++ b/tests/ui/typeck/issue-81885.stderr
@@ -1,10 +1,10 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
   --> $DIR/issue-81885.rs:1:22
    |
 LL | const TEST4: fn() -> _ = 42;
    |                      ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
   --> $DIR/issue-81885.rs:5:26
    |
 LL |     const TEST5: fn() -> _ = 42;
diff --git a/tests/ui/typeck/issue-83621-placeholder-static-in-extern.stderr b/tests/ui/typeck/issue-83621-placeholder-static-in-extern.stderr
index a4cb53025e3..c4a5c0dea6e 100644
--- a/tests/ui/typeck/issue-83621-placeholder-static-in-extern.stderr
+++ b/tests/ui/typeck/issue-83621-placeholder-static-in-extern.stderr
@@ -1,4 +1,4 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static variables
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/issue-83621-placeholder-static-in-extern.rs:4:15
    |
 LL |     static x: _;
diff --git a/tests/ui/typeck/issue-88643.rs b/tests/ui/typeck/issue-88643.rs
index 4435cba0207..e562f3e55ac 100644
--- a/tests/ui/typeck/issue-88643.rs
+++ b/tests/ui/typeck/issue-88643.rs
@@ -8,12 +8,12 @@ use std::collections::HashMap;
 pub trait T {}
 
 static CALLBACKS: HashMap<*const dyn T, dyn FnMut(&mut _) + 'static> = HashMap::new();
-//~^ ERROR: the placeholder `_` is not allowed within types on item signatures for static items [E0121]
+//~^ ERROR: the placeholder `_` is not allowed within types on item signatures for statics [E0121]
 
 static CALLBACKS2: Vec<dyn Fn(& _)> = Vec::new();
-//~^ ERROR: the placeholder `_` is not allowed within types on item signatures for static items [E0121]
+//~^ ERROR: the placeholder `_` is not allowed within types on item signatures for statics [E0121]
 
 static CALLBACKS3: Option<dyn Fn(& _)> = None;
-//~^ ERROR: the placeholder `_` is not allowed within types on item signatures for static items [E0121]
+//~^ ERROR: the placeholder `_` is not allowed within types on item signatures for statics [E0121]
 
 fn main() {}
diff --git a/tests/ui/typeck/issue-88643.stderr b/tests/ui/typeck/issue-88643.stderr
index d5d596b6f42..ad11c3ea8e0 100644
--- a/tests/ui/typeck/issue-88643.stderr
+++ b/tests/ui/typeck/issue-88643.stderr
@@ -1,16 +1,16 @@
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/issue-88643.rs:10:56
    |
 LL | static CALLBACKS: HashMap<*const dyn T, dyn FnMut(&mut _) + 'static> = HashMap::new();
    |                                                        ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/issue-88643.rs:13:33
    |
 LL | static CALLBACKS2: Vec<dyn Fn(& _)> = Vec::new();
    |                                 ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics
   --> $DIR/issue-88643.rs:16:36
    |
 LL | static CALLBACKS3: Option<dyn Fn(& _)> = None;
diff --git a/tests/ui/typeck/typeck_type_placeholder_item.rs b/tests/ui/typeck/typeck_type_placeholder_item.rs
index dc790361919..48547c019d6 100644
--- a/tests/ui/typeck/typeck_type_placeholder_item.rs
+++ b/tests/ui/typeck/typeck_type_placeholder_item.rs
@@ -41,7 +41,7 @@ impl Test9 {
     //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
 
     fn test10(&self, _x : _) { }
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
 }
 
 fn test11(x: &usize) -> &_ {
@@ -56,10 +56,10 @@ unsafe fn test12(x: *const usize) -> *const *const _ {
 
 impl Clone for Test9 {
     fn clone(&self) -> _ { Test9 }
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
 
     fn clone_from(&mut self, other: _) { *self = Test9; }
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
 }
 
 struct Test10 {
@@ -108,15 +108,15 @@ pub fn main() {
         //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
 
         fn fn_test10(&self, _x : _) { }
-        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
     }
 
     impl Clone for FnTest9 {
         fn clone(&self) -> _ { FnTest9 }
-        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
 
         fn clone_from(&mut self, other: _) { *self = FnTest9; }
-        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+        //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
     }
 
     struct FnTest10 {
@@ -140,19 +140,19 @@ pub fn main() {
 
 trait T {
     fn method_test1(&self, x: _);
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
     fn method_test2(&self, x: _) -> _;
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
-    //~| ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
+    //~| ERROR the placeholder `_` is not allowed within types on item signatures for methods
     fn method_test3(&self) -> _;
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for methods
     fn assoc_fn_test1(x: _);
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
     fn assoc_fn_test2(x: _) -> _;
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
-    //~| ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
+    //~| ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
     fn assoc_fn_test3() -> _;
-    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated functions
 }
 
 struct BadStruct<_>(_);
diff --git a/tests/ui/typeck/typeck_type_placeholder_item.stderr b/tests/ui/typeck/typeck_type_placeholder_item.stderr
index 53476f6c807..87750ee6dc1 100644
--- a/tests/ui/typeck/typeck_type_placeholder_item.stderr
+++ b/tests/ui/typeck/typeck_type_placeholder_item.stderr
@@ -203,7 +203,7 @@ LL | unsafe fn test12(x: *const usize) -> *const *const _ {
    |                                      |             not allowed in type signatures
    |                                      help: replace with the correct return type: `*const *const usize`
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:58:24
    |
 LL |     fn clone(&self) -> _ { Test9 }
@@ -215,7 +215,7 @@ LL -     fn clone(&self) -> _ { Test9 }
 LL +     fn clone(&self) -> Test9 { Test9 }
    |
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:61:37
    |
 LL |     fn clone_from(&mut self, other: _) { *self = Test9; }
@@ -332,7 +332,7 @@ error[E0121]: the placeholder `_` is not allowed within types on item signatures
 LL |     fn fn_test8(_f: fn() -> _) { }
    |                             ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:115:28
    |
 LL |         fn clone(&self) -> _ { FnTest9 }
@@ -344,7 +344,7 @@ LL -         fn clone(&self) -> _ { FnTest9 }
 LL +         fn clone(&self) -> FnTest9 { FnTest9 }
    |
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:118:41
    |
 LL |         fn clone_from(&mut self, other: _) { *self = FnTest9; }
@@ -389,49 +389,49 @@ LL |     fn fn_test13(x: _) -> (i32, _) { (x, x) }
    |                           |     not allowed in type signatures
    |                           help: replace with the correct return type: `(i32, i32)`
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:142:31
    |
 LL |     fn method_test1(&self, x: _);
    |                               ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:144:31
    |
 LL |     fn method_test2(&self, x: _) -> _;
    |                               ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:144:37
    |
 LL |     fn method_test2(&self, x: _) -> _;
    |                                     ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:147:31
    |
 LL |     fn method_test3(&self) -> _;
    |                               ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/typeck_type_placeholder_item.rs:149:26
    |
 LL |     fn assoc_fn_test1(x: _);
    |                          ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/typeck_type_placeholder_item.rs:151:26
    |
 LL |     fn assoc_fn_test2(x: _) -> _;
    |                          ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/typeck_type_placeholder_item.rs:151:32
    |
 LL |     fn assoc_fn_test2(x: _) -> _;
    |                                ^ not allowed in type signatures
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
   --> $DIR/typeck_type_placeholder_item.rs:154:28
    |
 LL |     fn assoc_fn_test3() -> _;
@@ -575,7 +575,7 @@ LL |     fn test9(&self) -> _ { () }
    |                        not allowed in type signatures
    |                        help: replace with the correct return type: `()`
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:43:27
    |
 LL |     fn test10(&self, _x : _) { }
@@ -590,7 +590,7 @@ LL |         fn fn_test9(&self) -> _ { () }
    |                               not allowed in type signatures
    |                               help: replace with the correct return type: `()`
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods
   --> $DIR/typeck_type_placeholder_item.rs:110:34
    |
 LL |         fn fn_test10(&self, _x : _) { }
diff --git a/tests/ui/typeck/typeck_type_placeholder_item_help.rs b/tests/ui/typeck/typeck_type_placeholder_item_help.rs
index ab433aaaf16..758b94f9854 100644
--- a/tests/ui/typeck/typeck_type_placeholder_item_help.rs
+++ b/tests/ui/typeck/typeck_type_placeholder_item_help.rs
@@ -11,7 +11,7 @@ const TEST3: _ = Some(42);
 //~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
 
 const TEST4: fn() -> _ = 42;
-//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constant items
+//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
 
 trait Test5 {
     const TEST5: _ = 42;
diff --git a/tests/ui/typeck/typeck_type_placeholder_item_help.stderr b/tests/ui/typeck/typeck_type_placeholder_item_help.stderr
index 5066e2eaa52..2fce00e7a8e 100644
--- a/tests/ui/typeck/typeck_type_placeholder_item_help.stderr
+++ b/tests/ui/typeck/typeck_type_placeholder_item_help.stderr
@@ -31,7 +31,7 @@ LL - const TEST3: _ = Some(42);
 LL + const TEST3: Option<i32> = Some(42);
    |
 
-error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for constants
   --> $DIR/typeck_type_placeholder_item_help.rs:13:22
    |
 LL | const TEST4: fn() -> _ = 42;
diff --git a/tests/ui/union/issue-81199.stderr b/tests/ui/union/issue-81199.stderr
index 8b78ddcf4a5..7deba88fc80 100644
--- a/tests/ui/union/issue-81199.stderr
+++ b/tests/ui/union/issue-81199.stderr
@@ -1,3 +1,15 @@
+error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
+  --> $DIR/issue-81199.rs:5:5
+   |
+LL |     components: PtrComponents<T>,
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
+help: wrap the field type in `ManuallyDrop<...>`
+   |
+LL |     components: std::mem::ManuallyDrop<PtrComponents<T>>,
+   |                 +++++++++++++++++++++++                +
+
 error[E0277]: the trait bound `T: Pointee` is not satisfied
   --> $DIR/issue-81199.rs:5:17
    |
@@ -14,18 +26,6 @@ help: consider further restricting type parameter `T` with trait `Pointee`
 LL | union PtrRepr<T: ?Sized + Pointee> {
    |                         +++++++++
 
-error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
-  --> $DIR/issue-81199.rs:5:5
-   |
-LL |     components: PtrComponents<T>,
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
-help: wrap the field type in `ManuallyDrop<...>`
-   |
-LL |     components: std::mem::ManuallyDrop<PtrComponents<T>>,
-   |                 +++++++++++++++++++++++                +
-
 error: aborting due to 2 previous errors
 
 Some errors have detailed explanations: E0277, E0740.
diff --git a/tests/ui/union/union-unsized.stderr b/tests/ui/union/union-unsized.stderr
index 851ad8939d4..89ab716071a 100644
--- a/tests/ui/union/union-unsized.stderr
+++ b/tests/ui/union/union-unsized.stderr
@@ -1,3 +1,15 @@
+error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
+  --> $DIR/union-unsized.rs:2:5
+   |
+LL |     a: str,
+   |     ^^^^^^
+   |
+   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
+help: wrap the field type in `ManuallyDrop<...>`
+   |
+LL |     a: std::mem::ManuallyDrop<str>,
+   |        +++++++++++++++++++++++   +
+
 error[E0277]: the size for values of type `str` cannot be known at compilation time
   --> $DIR/union-unsized.rs:2:8
    |
@@ -17,15 +29,15 @@ LL |     a: Box<str>,
    |        ++++   +
 
 error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
-  --> $DIR/union-unsized.rs:2:5
+  --> $DIR/union-unsized.rs:11:5
    |
-LL |     a: str,
+LL |     b: str,
    |     ^^^^^^
    |
    = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
 help: wrap the field type in `ManuallyDrop<...>`
    |
-LL |     a: std::mem::ManuallyDrop<str>,
+LL |     b: std::mem::ManuallyDrop<str>,
    |        +++++++++++++++++++++++   +
 
 error[E0277]: the size for values of type `str` cannot be known at compilation time
@@ -46,18 +58,6 @@ help: the `Box` type always has a statically known size and allocates its conten
 LL |     b: Box<str>,
    |        ++++   +
 
-error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
-  --> $DIR/union-unsized.rs:11:5
-   |
-LL |     b: str,
-   |     ^^^^^^
-   |
-   = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
-help: wrap the field type in `ManuallyDrop<...>`
-   |
-LL |     b: std::mem::ManuallyDrop<str>,
-   |        +++++++++++++++++++++++   +
-
 error: aborting due to 4 previous errors
 
 Some errors have detailed explanations: E0277, E0740.
diff --git a/tests/ui/unpretty/exhaustive.expanded.stdout b/tests/ui/unpretty/exhaustive.expanded.stdout
index 9df027b69b2..53ca3c8e391 100644
--- a/tests/ui/unpretty/exhaustive.expanded.stdout
+++ b/tests/ui/unpretty/exhaustive.expanded.stdout
@@ -15,7 +15,6 @@
 #![feature(const_trait_impl)]
 #![feature(decl_macro)]
 #![feature(deref_patterns)]
-#![feature(dyn_star)]
 #![feature(explicit_tail_calls)]
 #![feature(gen_blocks)]
 #![feature(more_qualified_paths)]
@@ -596,7 +595,6 @@ mod types {
         let _: dyn Send + 'static;
         let _: dyn 'static + Send;
         let _: dyn for<'a> Send;
-        let _: dyn* Send;
     }
     /// TyKind::ImplTrait
     const fn ty_impl_trait() {
diff --git a/tests/ui/unpretty/exhaustive.hir.stderr b/tests/ui/unpretty/exhaustive.hir.stderr
index ac8079ae089..aa411ce81eb 100644
--- a/tests/ui/unpretty/exhaustive.hir.stderr
+++ b/tests/ui/unpretty/exhaustive.hir.stderr
@@ -1,17 +1,17 @@
 error[E0697]: closures cannot be static
-  --> $DIR/exhaustive.rs:210:9
+  --> $DIR/exhaustive.rs:209:9
    |
 LL |         static || value;
    |         ^^^^^^^^^
 
 error[E0697]: closures cannot be static
-  --> $DIR/exhaustive.rs:211:9
+  --> $DIR/exhaustive.rs:210:9
    |
 LL |         static move || value;
    |         ^^^^^^^^^^^^^^
 
 error[E0728]: `await` is only allowed inside `async` functions and blocks
-  --> $DIR/exhaustive.rs:240:13
+  --> $DIR/exhaustive.rs:239:13
    |
 LL |     fn expr_await() {
    |     --------------- this is not `async`
@@ -20,19 +20,19 @@ LL |         fut.await;
    |             ^^^^^ only allowed inside `async` functions and blocks
 
 error: in expressions, `_` can only be used on the left-hand side of an assignment
-  --> $DIR/exhaustive.rs:289:9
+  --> $DIR/exhaustive.rs:288:9
    |
 LL |         _;
    |         ^ `_` not allowed here
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:299:9
+  --> $DIR/exhaustive.rs:298:9
    |
 LL |         x::();
    |         ^^^^^ only `Fn` traits may use parentheses
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:300:9
+  --> $DIR/exhaustive.rs:299:9
    |
 LL |         x::(T, T) -> T;
    |         ^^^^^^^^^^^^^^ only `Fn` traits may use parentheses
@@ -44,31 +44,31 @@ LL +         x::<T, T> -> T;
    |
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:301:9
+  --> $DIR/exhaustive.rs:300:9
    |
 LL |         crate::() -> ()::expressions::() -> ()::expr_path;
    |         ^^^^^^^^^^^^^^^ only `Fn` traits may use parentheses
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:301:26
+  --> $DIR/exhaustive.rs:300:26
    |
 LL |         crate::() -> ()::expressions::() -> ()::expr_path;
    |                          ^^^^^^^^^^^^^^^^^^^^^ only `Fn` traits may use parentheses
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:304:9
+  --> $DIR/exhaustive.rs:303:9
    |
 LL |         core::()::marker::()::PhantomData;
    |         ^^^^^^^^ only `Fn` traits may use parentheses
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:304:19
+  --> $DIR/exhaustive.rs:303:19
    |
 LL |         core::()::marker::()::PhantomData;
    |                   ^^^^^^^^^^ only `Fn` traits may use parentheses
 
 error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
-  --> $DIR/exhaustive.rs:391:9
+  --> $DIR/exhaustive.rs:390:9
    |
 LL |         yield;
    |         ^^^^^
@@ -79,7 +79,7 @@ LL |     #[coroutine] fn expr_yield() {
    |     ++++++++++++
 
 error[E0703]: invalid ABI: found `C++`
-  --> $DIR/exhaustive.rs:471:23
+  --> $DIR/exhaustive.rs:470:23
    |
 LL |         unsafe extern "C++" {}
    |                       ^^^^^ invalid ABI
@@ -87,7 +87,7 @@ LL |         unsafe extern "C++" {}
    = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions
 
 error: `..` patterns are not allowed here
-  --> $DIR/exhaustive.rs:678:13
+  --> $DIR/exhaustive.rs:677:13
    |
 LL |         let ..;
    |             ^^
@@ -95,13 +95,13 @@ LL |         let ..;
    = note: only allowed in tuple, tuple struct, and slice patterns
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/exhaustive.rs:793:16
+  --> $DIR/exhaustive.rs:792:16
    |
 LL |         let _: T() -> !;
    |                ^^^^^^^^ only `Fn` traits may use parentheses
 
 error[E0562]: `impl Trait` is not allowed in the type of variable bindings
-  --> $DIR/exhaustive.rs:808:16
+  --> $DIR/exhaustive.rs:806:16
    |
 LL |         let _: impl Send;
    |                ^^^^^^^^^
@@ -112,7 +112,7 @@ LL |         let _: impl Send;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0562]: `impl Trait` is not allowed in the type of variable bindings
-  --> $DIR/exhaustive.rs:809:16
+  --> $DIR/exhaustive.rs:807:16
    |
 LL |         let _: impl Send + 'static;
    |                ^^^^^^^^^^^^^^^^^^^
@@ -123,7 +123,7 @@ LL |         let _: impl Send + 'static;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0562]: `impl Trait` is not allowed in the type of variable bindings
-  --> $DIR/exhaustive.rs:810:16
+  --> $DIR/exhaustive.rs:808:16
    |
 LL |         let _: impl 'static + Send;
    |                ^^^^^^^^^^^^^^^^^^^
@@ -134,7 +134,7 @@ LL |         let _: impl 'static + Send;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0562]: `impl Trait` is not allowed in the type of variable bindings
-  --> $DIR/exhaustive.rs:811:16
+  --> $DIR/exhaustive.rs:809:16
    |
 LL |         let _: impl ?Sized;
    |                ^^^^^^^^^^^
@@ -145,7 +145,7 @@ LL |         let _: impl ?Sized;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0562]: `impl Trait` is not allowed in the type of variable bindings
-  --> $DIR/exhaustive.rs:812:16
+  --> $DIR/exhaustive.rs:810:16
    |
 LL |         let _: impl [const] Clone;
    |                ^^^^^^^^^^^^^^^^^^
@@ -156,7 +156,7 @@ LL |         let _: impl [const] Clone;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0562]: `impl Trait` is not allowed in the type of variable bindings
-  --> $DIR/exhaustive.rs:813:16
+  --> $DIR/exhaustive.rs:811:16
    |
 LL |         let _: impl for<'a> Send;
    |                ^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/unpretty/exhaustive.hir.stdout b/tests/ui/unpretty/exhaustive.hir.stdout
index 2d347ec6e88..2b8f3b21396 100644
--- a/tests/ui/unpretty/exhaustive.hir.stdout
+++ b/tests/ui/unpretty/exhaustive.hir.stdout
@@ -14,7 +14,6 @@
 #![feature(const_trait_impl)]
 #![feature(decl_macro)]
 #![feature(deref_patterns)]
-#![feature(dyn_star)]
 #![feature(explicit_tail_calls)]
 #![feature(gen_blocks)]
 #![feature(more_qualified_paths)]
@@ -661,7 +660,6 @@ mod types {
         let _: dyn Send + 'static;
         let _: dyn Send + 'static;
         let _: dyn for<'a> Send;
-        let _: dyn* Send;
     }
     /// TyKind::ImplTrait
     const fn ty_impl_trait() {
diff --git a/tests/ui/unpretty/exhaustive.rs b/tests/ui/unpretty/exhaustive.rs
index 5bf1118058c..5292ddad4f6 100644
--- a/tests/ui/unpretty/exhaustive.rs
+++ b/tests/ui/unpretty/exhaustive.rs
@@ -14,7 +14,6 @@
 #![feature(const_trait_impl)]
 #![feature(decl_macro)]
 #![feature(deref_patterns)]
-#![feature(dyn_star)]
 #![feature(explicit_tail_calls)]
 #![feature(gen_blocks)]
 #![feature(more_qualified_paths)]
@@ -800,7 +799,6 @@ mod types {
         let _: dyn Send + 'static;
         let _: dyn 'static + Send;
         let _: dyn for<'a> Send;
-        let _: dyn* Send;
     }
 
     /// TyKind::ImplTrait
diff --git a/tests/ui/unsized-locals/yote.stderr b/tests/ui/unsized-locals/yote.stderr
index 8e7da64038a..f08a0b4aa60 100644
--- a/tests/ui/unsized-locals/yote.stderr
+++ b/tests/ui/unsized-locals/yote.stderr
@@ -4,7 +4,7 @@ error[E0557]: feature has been removed
 LL | #![feature(unsized_locals)]
    |            ^^^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in CURRENT_RUSTC_VERSION
+   = note: removed in 1.89.0
    = note: removed due to implementation concerns; see https://github.com/rust-lang/rust/issues/111942
 
 error: aborting due to 1 previous error
diff --git a/tests/ui/unsized/unsized-trait-impl-self-type.stderr b/tests/ui/unsized/unsized-trait-impl-self-type.stderr
index 3b684193b4a..61165d49b2d 100644
--- a/tests/ui/unsized/unsized-trait-impl-self-type.stderr
+++ b/tests/ui/unsized/unsized-trait-impl-self-type.stderr
@@ -1,3 +1,12 @@
+error[E0046]: not all trait items implemented, missing: `foo`
+  --> $DIR/unsized-trait-impl-self-type.rs:10:1
+   |
+LL |     fn foo(&self, z: &Z);
+   |     --------------------- `foo` from trait
+...
+LL | impl<X: ?Sized> T3<X> for S5<X> {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `foo` in implementation
+
 error[E0277]: the size for values of type `X` cannot be known at compilation time
   --> $DIR/unsized-trait-impl-self-type.rs:10:27
    |
@@ -24,15 +33,6 @@ LL - impl<X: ?Sized> T3<X> for S5<X> {
 LL + impl<X> T3<X> for S5<X> {
    |
 
-error[E0046]: not all trait items implemented, missing: `foo`
-  --> $DIR/unsized-trait-impl-self-type.rs:10:1
-   |
-LL |     fn foo(&self, z: &Z);
-   |     --------------------- `foo` from trait
-...
-LL | impl<X: ?Sized> T3<X> for S5<X> {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `foo` in implementation
-
 error: aborting due to 2 previous errors
 
 Some errors have detailed explanations: E0046, E0277.
diff --git a/tests/ui/unsized/unsized-trait-impl-trait-arg.stderr b/tests/ui/unsized/unsized-trait-impl-trait-arg.stderr
index 79fc9567dae..f46a6f678a9 100644
--- a/tests/ui/unsized/unsized-trait-impl-trait-arg.stderr
+++ b/tests/ui/unsized/unsized-trait-impl-trait-arg.stderr
@@ -1,3 +1,12 @@
+error[E0046]: not all trait items implemented, missing: `foo`
+  --> $DIR/unsized-trait-impl-trait-arg.rs:8:1
+   |
+LL |     fn foo(&self, z: Z);
+   |     -------------------- `foo` from trait
+...
+LL | impl<X: ?Sized> T2<X> for S4<X> {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `foo` in implementation
+
 error[E0277]: the size for values of type `X` cannot be known at compilation time
   --> $DIR/unsized-trait-impl-trait-arg.rs:8:17
    |
@@ -21,15 +30,6 @@ help: consider relaxing the implicit `Sized` restriction
 LL | trait T2<Z: ?Sized> {
    |           ++++++++
 
-error[E0046]: not all trait items implemented, missing: `foo`
-  --> $DIR/unsized-trait-impl-trait-arg.rs:8:1
-   |
-LL |     fn foo(&self, z: Z);
-   |     -------------------- `foo` from trait
-...
-LL | impl<X: ?Sized> T2<X> for S4<X> {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `foo` in implementation
-
 error: aborting due to 2 previous errors
 
 Some errors have detailed explanations: E0046, E0277.
diff --git a/tests/ui/unsized/unsized7.stderr b/tests/ui/unsized/unsized7.stderr
index 6e9c052a070..2e65c8c3357 100644
--- a/tests/ui/unsized/unsized7.stderr
+++ b/tests/ui/unsized/unsized7.stderr
@@ -1,3 +1,12 @@
+error[E0046]: not all trait items implemented, missing: `dummy`
+  --> $DIR/unsized7.rs:12:1
+   |
+LL |     fn dummy(&self) -> Z;
+   |     --------------------- `dummy` from trait
+...
+LL | impl<X: ?Sized + T> T1<X> for S3<X> {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `dummy` in implementation
+
 error[E0277]: the size for values of type `X` cannot be known at compilation time
   --> $DIR/unsized7.rs:12:21
    |
@@ -21,15 +30,6 @@ help: consider relaxing the implicit `Sized` restriction
 LL | trait T1<Z: T + ?Sized> {
    |               ++++++++
 
-error[E0046]: not all trait items implemented, missing: `dummy`
-  --> $DIR/unsized7.rs:12:1
-   |
-LL |     fn dummy(&self) -> Z;
-   |     --------------------- `dummy` from trait
-...
-LL | impl<X: ?Sized + T> T1<X> for S3<X> {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `dummy` in implementation
-
 error: aborting due to 2 previous errors
 
 Some errors have detailed explanations: E0046, E0277.
diff --git a/tests/ui/variance/variance-regions-unused-indirect.stderr b/tests/ui/variance/variance-regions-unused-indirect.stderr
index 8cdbb3c0f5e..f942c51b05b 100644
--- a/tests/ui/variance/variance-regions-unused-indirect.stderr
+++ b/tests/ui/variance/variance-regions-unused-indirect.stderr
@@ -1,3 +1,11 @@
+error[E0392]: lifetime parameter `'a` is never used
+  --> $DIR/variance-regions-unused-indirect.rs:3:10
+   |
+LL | enum Foo<'a> {
+   |          ^^ unused lifetime parameter
+   |
+   = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
+
 error[E0072]: recursive types `Foo` and `Bar` have infinite size
   --> $DIR/variance-regions-unused-indirect.rs:3:1
    |
@@ -22,14 +30,6 @@ LL ~     Bar1(Box<Foo<'a>>)
    |
 
 error[E0392]: lifetime parameter `'a` is never used
-  --> $DIR/variance-regions-unused-indirect.rs:3:10
-   |
-LL | enum Foo<'a> {
-   |          ^^ unused lifetime parameter
-   |
-   = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
-
-error[E0392]: lifetime parameter `'a` is never used
   --> $DIR/variance-regions-unused-indirect.rs:8:10
    |
 LL | enum Bar<'a> {
diff --git a/tests/ui/wf/hir-wf-check-erase-regions.stderr b/tests/ui/wf/hir-wf-check-erase-regions.stderr
index e4d48bf82c0..07304cd448e 100644
--- a/tests/ui/wf/hir-wf-check-erase-regions.stderr
+++ b/tests/ui/wf/hir-wf-check-erase-regions.stderr
@@ -11,10 +11,10 @@ note: required by a bound in `std::iter::IntoIterator::IntoIter`
   --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
 
 error[E0277]: `&'a T` is not an iterator
-  --> $DIR/hir-wf-check-erase-regions.rs:7:21
+  --> $DIR/hir-wf-check-erase-regions.rs:7:5
    |
 LL |     type IntoIter = std::iter::Flatten<std::slice::Iter<'a, T>>;
-   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `&'a T` is not an iterator
+   |     ^^^^^^^^^^^^^ `&'a T` is not an iterator
    |
    = help: the trait `Iterator` is not implemented for `&'a T`
    = help: the trait `Iterator` is implemented for `&mut I`
diff --git a/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122199.stderr b/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122199.stderr
index e10bb98c134..dc5a1cf3485 100644
--- a/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122199.stderr
+++ b/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122199.stderr
@@ -32,7 +32,7 @@ LL | trait Trait<const N: dyn Trait = bar> {
    |                          ^^^^^
    |
    = note: ...which immediately requires computing type of `Trait::N` again
-note: cycle used when computing explicit predicates of trait `Trait`
+note: cycle used when checking that `Trait` is well-formed
   --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:1
    |
 LL | trait Trait<const N: dyn Trait = bar> {
diff --git a/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr b/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr
index a381f2acdce..a99728f4b66 100644
--- a/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr
+++ b/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr
@@ -37,7 +37,7 @@ note: ...which requires computing type of `Bar::M`...
 LL | trait Bar<const M: Foo<2>> {}
    |           ^^^^^^^^^^^^^^^
    = note: ...which again requires computing type of `Foo::N`, completing the cycle
-note: cycle used when computing explicit predicates of trait `Foo`
+note: cycle used when checking that `Foo` is well-formed
   --> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:2:1
    |
 LL | trait Foo<const N: Bar<2>> {
@@ -56,7 +56,7 @@ note: ...which requires computing type of `Bar::M`...
 LL | trait Bar<const M: Foo<2>> {}
    |           ^^^^^^^^^^^^^^^
    = note: ...which again requires computing type of `Foo::N`, completing the cycle
-note: cycle used when computing explicit predicates of trait `Foo`
+note: cycle used when checking that `Foo` is well-formed
   --> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:2:1
    |
 LL | trait Foo<const N: Bar<2>> {
diff --git a/tests/ui/wf/wf-impl-associated-type-region.stderr b/tests/ui/wf/wf-impl-associated-type-region.stderr
index f17d33474f4..86e35b86fb1 100644
--- a/tests/ui/wf/wf-impl-associated-type-region.stderr
+++ b/tests/ui/wf/wf-impl-associated-type-region.stderr
@@ -1,10 +1,10 @@
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/wf-impl-associated-type-region.rs:10:16
+  --> $DIR/wf-impl-associated-type-region.rs:10:5
    |
 LL | impl<'a, T> Foo<'a> for T {
    |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
 LL |     type Bar = &'a T;
-   |                ^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
+   |     ^^^^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
diff --git a/tests/ui/wf/wf-outlives-ty-in-fn-or-trait.stderr b/tests/ui/wf/wf-outlives-ty-in-fn-or-trait.stderr
index e0cf42fd10c..f2989ae97b5 100644
--- a/tests/ui/wf/wf-outlives-ty-in-fn-or-trait.stderr
+++ b/tests/ui/wf/wf-outlives-ty-in-fn-or-trait.stderr
@@ -1,10 +1,10 @@
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/wf-outlives-ty-in-fn-or-trait.rs:9:16
+  --> $DIR/wf-outlives-ty-in-fn-or-trait.rs:9:5
    |
 LL | impl<'a, T> Trait<'a, T> for usize {
    |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
 LL |     type Out = &'a fn(T);
-   |                ^^^^^^^^^ ...so that the reference type `&'a fn(T)` does not outlive the data it points at
+   |     ^^^^^^^^ ...so that the reference type `&'a fn(T)` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
@@ -12,12 +12,12 @@ LL | impl<'a, T: 'a> Trait<'a, T> for usize {
    |           ++++
 
 error[E0309]: the parameter type `T` may not live long enough
-  --> $DIR/wf-outlives-ty-in-fn-or-trait.rs:19:16
+  --> $DIR/wf-outlives-ty-in-fn-or-trait.rs:19:5
    |
 LL | impl<'a, T> Trait<'a, T> for u32 {
    |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
 LL |     type Out = &'a dyn Baz<T>;
-   |                ^^^^^^^^^^^^^^ ...so that the reference type `&'a (dyn Baz<T> + 'a)` does not outlive the data it points at
+   |     ^^^^^^^^ ...so that the reference type `&'a (dyn Baz<T> + 'a)` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |
diff --git a/tests/ui/wf/wf-trait-associated-type-region.stderr b/tests/ui/wf/wf-trait-associated-type-region.stderr
index d6647b2cb96..9589e1d7853 100644
--- a/tests/ui/wf/wf-trait-associated-type-region.stderr
+++ b/tests/ui/wf/wf-trait-associated-type-region.stderr
@@ -1,11 +1,11 @@
 error[E0309]: the associated type `<Self as SomeTrait<'a>>::Type1` may not live long enough
-  --> $DIR/wf-trait-associated-type-region.rs:9:18
+  --> $DIR/wf-trait-associated-type-region.rs:9:5
    |
 LL | trait SomeTrait<'a> {
    |                 -- the associated type `<Self as SomeTrait<'a>>::Type1` must be valid for the lifetime `'a` as defined here...
 LL |     type Type1;
 LL |     type Type2 = &'a Self::Type1;
-   |                  ^^^^^^^^^^^^^^^ ...so that the reference type `&'a <Self as SomeTrait<'a>>::Type1` does not outlive the data it points at
+   |     ^^^^^^^^^^ ...so that the reference type `&'a <Self as SomeTrait<'a>>::Type1` does not outlive the data it points at
    |
 help: consider adding an explicit lifetime bound
    |