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-rw-r--r--tests/codegen-llvm/become-musttail.rs18
-rw-r--r--tests/coverage/async_closure.cov-map21
-rw-r--r--tests/coverage/try-in-macro.attr.cov-map9
-rw-r--r--tests/coverage/try-in-macro.bang.cov-map9
-rw-r--r--tests/coverage/try-in-macro.derive.cov-map9
-rw-r--r--tests/crashes/139409.rs12
-rw-r--r--tests/mir-opt/box_conditional_drop_allocator.main.ElaborateDrops.diff186
-rw-r--r--tests/mir-opt/box_conditional_drop_allocator.rs39
-rw-r--r--tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff2
-rw-r--r--tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff2
-rw-r--r--tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff4
-rw-r--r--tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff4
-rw-r--r--tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff4
-rw-r--r--tests/mir-opt/sroa/simd_sroa.foo.ScalarReplacementOfAggregates.diff32
-rw-r--r--tests/mir-opt/sroa/simd_sroa.rs18
-rw-r--r--tests/run-make/cross-lang-lto-clang/rmake.rs59
-rw-r--r--tests/run-make/fat-then-thin-lto/lib.rs13
-rw-r--r--tests/run-make/fat-then-thin-lto/main.rs11
-rw-r--r--tests/run-make/fat-then-thin-lto/rmake.rs25
-rw-r--r--tests/run-make/linker-plugin-lto-fat/ir.ll6
-rw-r--r--tests/run-make/linker-plugin-lto-fat/main.rs22
-rw-r--r--tests/run-make/linker-plugin-lto-fat/rmake.rs33
-rw-r--r--tests/rustdoc-ui/2024-doctests-checks.rs2
-rw-r--r--tests/rustdoc-ui/2024-doctests-checks.stdout5
-rw-r--r--tests/rustdoc-ui/2024-doctests-crate-attribute.rs2
-rw-r--r--tests/rustdoc-ui/2024-doctests-crate-attribute.stdout5
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-2024.rs2
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-2024.stdout11
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-items.rs2
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-items.stdout83
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-module-2.rs2
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-module-2.stdout13
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-module.rs2
-rw-r--r--tests/rustdoc-ui/doctest/dead-code-module.stdout11
-rw-r--r--tests/rustdoc-ui/doctest/doctest-output-include-fail.rs2
-rw-r--r--tests/rustdoc-ui/doctest/doctest-output-include-fail.stdout1
-rw-r--r--tests/rustdoc-ui/doctest/edition-2024-error-output.rs2
-rw-r--r--tests/rustdoc-ui/doctest/edition-2024-error-output.stdout7
-rw-r--r--tests/rustdoc-ui/doctest/failed-doctest-should-panic.rs2
-rw-r--r--tests/rustdoc-ui/doctest/failed-doctest-should-panic.stdout9
-rw-r--r--tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2015.stdout8
-rw-r--r--tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2024.stdout9
-rw-r--r--tests/rustdoc-ui/doctest/failed-doctest-test-crate.rs2
-rw-r--r--tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2015.stdout8
-rw-r--r--tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2024.stdout1
-rw-r--r--tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.rs2
-rw-r--r--tests/rustdoc-ui/doctest/stdout-and-stderr.rs2
-rw-r--r--tests/rustdoc-ui/doctest/stdout-and-stderr.stdout19
-rw-r--r--tests/rustdoc-ui/doctest/wrong-ast-2024.rs2
-rw-r--r--tests/rustdoc-ui/doctest/wrong-ast-2024.stdout15
-rw-r--r--tests/rustdoc/extern/extern-html-alias.rs9
-rw-r--r--tests/rustdoc/extern/extern-html-fallback.rs14
-rw-r--r--tests/rustdoc/reexport/auxiliary/wrap-unnamable-type.rs12
-rw-r--r--tests/rustdoc/reexport/wrapped-unnamble-type-143222.rs16
-rw-r--r--tests/ui/async-await/async-drop/async-drop-box-allocator.rs134
-rw-r--r--tests/ui/async-await/async-drop/async-drop-box-allocator.run.stdout6
-rw-r--r--tests/ui/async-await/async-drop/async-drop-box.rs109
-rw-r--r--tests/ui/async-await/async-drop/async-drop-box.run.stdout6
-rw-r--r--tests/ui/drop/box-conditional-drop-allocator.rs43
-rw-r--r--tests/ui/error-codes/E0423.stderr2
-rw-r--r--tests/ui/error-emitter/auxiliary/close_window.rs4
-rw-r--r--tests/ui/error-emitter/close_window.ascii.stderr14
-rw-r--r--tests/ui/error-emitter/close_window.rs11
-rw-r--r--tests/ui/error-emitter/close_window.unicode.stderr14
-rw-r--r--tests/ui/explicit-tail-calls/recursion-etc.rs17
-rw-r--r--tests/ui/lint/lint-non-uppercase-usages.stderr2
-rw-r--r--tests/ui/lint/wide_pointer_comparisons.rs4
-rw-r--r--tests/ui/lint/wide_pointer_comparisons.stderr18
-rw-r--r--tests/ui/parser/item-kw-case-mismatch.stderr6
-rw-r--r--tests/ui/parser/kw-in-trait-bounds.stderr8
-rw-r--r--tests/ui/parser/misspelled-keywords/hrdt.stderr2
-rw-r--r--tests/ui/parser/misspelled-keywords/impl-return.stderr2
-rw-r--r--tests/ui/parser/misspelled-keywords/static.stderr2
-rw-r--r--tests/ui/parser/misspelled-keywords/struct.stderr2
-rw-r--r--tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr4
-rw-r--r--tests/ui/parser/typod-const-in-const-param-def.stderr8
-rw-r--r--tests/ui/suggestions/assoc-ct-for-assoc-method.stderr2
-rw-r--r--tests/ui/suggestions/bool_typo_err_suggest.stderr2
-rw-r--r--tests/ui/suggestions/case-difference-suggestions.rs57
-rw-r--r--tests/ui/suggestions/case-difference-suggestions.stderr99
-rw-r--r--tests/ui/suggestions/incorrect-variant-literal.svg2
-rw-r--r--tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.next.stderr19
-rw-r--r--tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.rs17
-rw-r--r--tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr17
-rw-r--r--tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs20
-rw-r--r--tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr19
-rw-r--r--tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.rs33
87 files changed, 1315 insertions, 210 deletions
diff --git a/tests/codegen-llvm/become-musttail.rs b/tests/codegen-llvm/become-musttail.rs
new file mode 100644
index 00000000000..07f33571910
--- /dev/null
+++ b/tests/codegen-llvm/become-musttail.rs
@@ -0,0 +1,18 @@
+//@ compile-flags: -C opt-level=0 -Cpanic=abort -C no-prepopulate-passes
+//@ needs-unwind
+
+#![crate_type = "lib"]
+#![feature(explicit_tail_calls)]
+
+// CHECK-LABEL: define {{.*}}@fibonacci(
+#[no_mangle]
+#[inline(never)]
+pub fn fibonacci(n: u64, a: u64, b: u64) -> u64 {
+    // CHECK: musttail call {{.*}}@fibonacci(
+    // CHECK-NEXT: ret i64
+    match n {
+        0 => a,
+        1 => b,
+        _ => become fibonacci(n - 1, b, a + b),
+    }
+}
diff --git a/tests/coverage/async_closure.cov-map b/tests/coverage/async_closure.cov-map
index 9f8dc8d6cbb..53128dd7a48 100644
--- a/tests/coverage/async_closure.cov-map
+++ b/tests/coverage/async_closure.cov-map
@@ -37,32 +37,29 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c0
 
 Function name: async_closure::main::{closure#0}
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0b, 22, 00, 23, 01, 00, 23, 00, 24]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 22, 00, 24]
 Number of files: 1
 - file 0 => $DIR/async_closure.rs
 Number of expressions: 0
-Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 35)
-- Code(Counter(0)) at (prev + 0, 35) to (start + 0, 36)
+Number of file 0 mappings: 1
+- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 36)
 Highest counter ID seen: c0
 
 Function name: async_closure::main::{closure#0}
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0b, 22, 00, 23, 01, 00, 23, 00, 24]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 22, 00, 24]
 Number of files: 1
 - file 0 => $DIR/async_closure.rs
 Number of expressions: 0
-Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 35)
-- Code(Counter(0)) at (prev + 0, 35) to (start + 0, 36)
+Number of file 0 mappings: 1
+- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 36)
 Highest counter ID seen: c0
 
 Function name: async_closure::main::{closure#0}::{closure#0}::<i16>
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0b, 22, 00, 23, 01, 00, 23, 00, 24]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 22, 00, 24]
 Number of files: 1
 - file 0 => $DIR/async_closure.rs
 Number of expressions: 0
-Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 35)
-- Code(Counter(0)) at (prev + 0, 35) to (start + 0, 36)
+Number of file 0 mappings: 1
+- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 36)
 Highest counter ID seen: c0
 
diff --git a/tests/coverage/try-in-macro.attr.cov-map b/tests/coverage/try-in-macro.attr.cov-map
index 7111e89637c..1b6c97cf145 100644
--- a/tests/coverage/try-in-macro.attr.cov-map
+++ b/tests/coverage/try-in-macro.attr.cov-map
@@ -1,12 +1,3 @@
-Function name: <try_in_macro::MyEnum as try_in_macro::Arbitrary>::try_size_hint
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 1e, 2a, 00, 2b]
-Number of files: 1
-- file 0 => $DIR/try-in-macro.rs
-Number of expressions: 0
-Number of file 0 mappings: 1
-- Code(Zero) at (prev + 30, 42) to (start + 0, 43)
-Highest counter ID seen: (none)
-
 Function name: try_in_macro::main
 Raw bytes (19): 0x[01, 01, 00, 03, 01, 29, 01, 00, 0a, 01, 01, 05, 00, 1a, 01, 01, 01, 00, 02]
 Number of files: 1
diff --git a/tests/coverage/try-in-macro.bang.cov-map b/tests/coverage/try-in-macro.bang.cov-map
index 80bd91a993c..1b6c97cf145 100644
--- a/tests/coverage/try-in-macro.bang.cov-map
+++ b/tests/coverage/try-in-macro.bang.cov-map
@@ -1,12 +1,3 @@
-Function name: <try_in_macro::MyEnum as try_in_macro::Arbitrary>::try_size_hint
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 23, 1c, 00, 1d]
-Number of files: 1
-- file 0 => $DIR/try-in-macro.rs
-Number of expressions: 0
-Number of file 0 mappings: 1
-- Code(Zero) at (prev + 35, 28) to (start + 0, 29)
-Highest counter ID seen: (none)
-
 Function name: try_in_macro::main
 Raw bytes (19): 0x[01, 01, 00, 03, 01, 29, 01, 00, 0a, 01, 01, 05, 00, 1a, 01, 01, 01, 00, 02]
 Number of files: 1
diff --git a/tests/coverage/try-in-macro.derive.cov-map b/tests/coverage/try-in-macro.derive.cov-map
index 6646b6693ba..1b6c97cf145 100644
--- a/tests/coverage/try-in-macro.derive.cov-map
+++ b/tests/coverage/try-in-macro.derive.cov-map
@@ -1,12 +1,3 @@
-Function name: <try_in_macro::MyEnum as try_in_macro::Arbitrary>::try_size_hint
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 26, 38, 00, 39]
-Number of files: 1
-- file 0 => $DIR/try-in-macro.rs
-Number of expressions: 0
-Number of file 0 mappings: 1
-- Code(Zero) at (prev + 38, 56) to (start + 0, 57)
-Highest counter ID seen: (none)
-
 Function name: try_in_macro::main
 Raw bytes (19): 0x[01, 01, 00, 03, 01, 29, 01, 00, 0a, 01, 01, 05, 00, 1a, 01, 01, 01, 00, 02]
 Number of files: 1
diff --git a/tests/crashes/139409.rs b/tests/crashes/139409.rs
deleted file mode 100644
index 68cbfa153de..00000000000
--- a/tests/crashes/139409.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-//@ known-bug: #139409
-//@ compile-flags: -Znext-solver=globally
-
-fn main() {
-    trait B<C> {}
-    impl<C> B<C> for () {}
-    trait D<C, E>: B<C> + B<E> {
-        fn f(&self) {}
-    }
-    impl<C, E> D<C, E> for () {}
-    (&() as &dyn D<&(), &()>).f()
-}
diff --git a/tests/mir-opt/box_conditional_drop_allocator.main.ElaborateDrops.diff b/tests/mir-opt/box_conditional_drop_allocator.main.ElaborateDrops.diff
new file mode 100644
index 00000000000..6f6c239d7c8
--- /dev/null
+++ b/tests/mir-opt/box_conditional_drop_allocator.main.ElaborateDrops.diff
@@ -0,0 +1,186 @@
+- // MIR for `main` before ElaborateDrops
++ // MIR for `main` after ElaborateDrops
+  
+  fn main() -> () {
+      let mut _0: ();
+      let _1: std::boxed::Box<HasDrop, DropAllocator>;
+      let mut _2: HasDrop;
+      let mut _3: DropAllocator;
+      let mut _4: bool;
+      let _5: ();
+      let mut _6: HasDrop;
+      let _7: ();
+      let mut _8: std::boxed::Box<HasDrop, DropAllocator>;
++     let mut _9: bool;
++     let mut _10: &mut std::boxed::Box<HasDrop, DropAllocator>;
++     let mut _11: ();
++     let mut _12: &mut std::boxed::Box<HasDrop, DropAllocator>;
++     let mut _13: ();
++     let mut _14: *const HasDrop;
++     let mut _15: &mut std::boxed::Box<HasDrop, DropAllocator>;
++     let mut _16: ();
++     let mut _17: *const HasDrop;
+      scope 1 {
+          debug b => _1;
+      }
+  
+      bb0: {
++         _9 = const false;
+          StorageLive(_1);
+          StorageLive(_2);
+          _2 = HasDrop;
+          StorageLive(_3);
+          _3 = DropAllocator;
+          _1 = Box::<HasDrop, DropAllocator>::new_in(move _2, move _3) -> [return: bb1, unwind: bb11];
+      }
+  
+      bb1: {
++         _9 = const true;
+          StorageDead(_3);
+          StorageDead(_2);
+          StorageLive(_4);
+          _4 = const true;
+          switchInt(move _4) -> [0: bb4, otherwise: bb2];
+      }
+  
+      bb2: {
+          StorageLive(_5);
+          StorageLive(_6);
+          _6 = move (*_1);
+          _5 = std::mem::drop::<HasDrop>(move _6) -> [return: bb3, unwind: bb9];
+      }
+  
+      bb3: {
+          StorageDead(_6);
+          StorageDead(_5);
+          _0 = const ();
+          goto -> bb6;
+      }
+  
+      bb4: {
+          StorageLive(_7);
+          StorageLive(_8);
++         _9 = const false;
+          _8 = move _1;
+          _7 = std::mem::drop::<Box<HasDrop, DropAllocator>>(move _8) -> [return: bb5, unwind: bb8];
+      }
+  
+      bb5: {
+          StorageDead(_8);
+          StorageDead(_7);
+          _0 = const ();
+          goto -> bb6;
+      }
+  
+      bb6: {
+          StorageDead(_4);
+-         drop(_1) -> [return: bb7, unwind continue];
++         goto -> bb23;
+      }
+  
+      bb7: {
++         _9 = const false;
+          StorageDead(_1);
+          return;
+      }
+  
+      bb8 (cleanup): {
+-         drop(_8) -> [return: bb10, unwind terminate(cleanup)];
++         goto -> bb10;
+      }
+  
+      bb9 (cleanup): {
+-         drop(_6) -> [return: bb10, unwind terminate(cleanup)];
++         goto -> bb10;
+      }
+  
+      bb10 (cleanup): {
+-         drop(_1) -> [return: bb13, unwind terminate(cleanup)];
++         goto -> bb29;
+      }
+  
+      bb11 (cleanup): {
+-         drop(_3) -> [return: bb12, unwind terminate(cleanup)];
++         goto -> bb12;
+      }
+  
+      bb12 (cleanup): {
+-         drop(_2) -> [return: bb13, unwind terminate(cleanup)];
++         goto -> bb13;
+      }
+  
+      bb13 (cleanup): {
+          resume;
++     }
++ 
++     bb14: {
++         _9 = const false;
++         goto -> bb7;
++     }
++ 
++     bb15 (cleanup): {
++         drop((_1.1: DropAllocator)) -> [return: bb13, unwind terminate(cleanup)];
++     }
++ 
++     bb16 (cleanup): {
++         switchInt(copy _9) -> [0: bb13, otherwise: bb15];
++     }
++ 
++     bb17: {
++         drop((_1.1: DropAllocator)) -> [return: bb14, unwind: bb13];
++     }
++ 
++     bb18: {
++         switchInt(copy _9) -> [0: bb14, otherwise: bb17];
++     }
++ 
++     bb19: {
++         _10 = &mut _1;
++         _11 = <Box<HasDrop, DropAllocator> as Drop>::drop(move _10) -> [return: bb18, unwind: bb16];
++     }
++ 
++     bb20 (cleanup): {
++         _12 = &mut _1;
++         _13 = <Box<HasDrop, DropAllocator> as Drop>::drop(move _12) -> [return: bb16, unwind terminate(cleanup)];
++     }
++ 
++     bb21: {
++         goto -> bb19;
++     }
++ 
++     bb22: {
++         _14 = copy ((_1.0: std::ptr::Unique<HasDrop>).0: std::ptr::NonNull<HasDrop>) as *const HasDrop (Transmute);
++         goto -> bb21;
++     }
++ 
++     bb23: {
++         switchInt(copy _9) -> [0: bb18, otherwise: bb22];
++     }
++ 
++     bb24 (cleanup): {
++         drop((_1.1: DropAllocator)) -> [return: bb13, unwind terminate(cleanup)];
++     }
++ 
++     bb25 (cleanup): {
++         switchInt(copy _9) -> [0: bb13, otherwise: bb24];
++     }
++ 
++     bb26 (cleanup): {
++         _15 = &mut _1;
++         _16 = <Box<HasDrop, DropAllocator> as Drop>::drop(move _15) -> [return: bb25, unwind terminate(cleanup)];
++     }
++ 
++     bb27 (cleanup): {
++         goto -> bb26;
++     }
++ 
++     bb28 (cleanup): {
++         _17 = copy ((_1.0: std::ptr::Unique<HasDrop>).0: std::ptr::NonNull<HasDrop>) as *const HasDrop (Transmute);
++         goto -> bb27;
++     }
++ 
++     bb29 (cleanup): {
++         switchInt(copy _9) -> [0: bb25, otherwise: bb28];
+      }
+  }
+  
diff --git a/tests/mir-opt/box_conditional_drop_allocator.rs b/tests/mir-opt/box_conditional_drop_allocator.rs
new file mode 100644
index 00000000000..9471be14c87
--- /dev/null
+++ b/tests/mir-opt/box_conditional_drop_allocator.rs
@@ -0,0 +1,39 @@
+// skip-filecheck
+//@ test-mir-pass: ElaborateDrops
+//@ needs-unwind
+#![feature(allocator_api)]
+
+// Regression test for #131082.
+// Testing that the allocator of a Box is dropped in conditional drops
+
+use std::alloc::{AllocError, Allocator, Global, Layout};
+use std::ptr::NonNull;
+
+struct DropAllocator;
+
+unsafe impl Allocator for DropAllocator {
+    fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError> {
+        Global.allocate(layout)
+    }
+    unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout) {
+        Global.deallocate(ptr, layout);
+    }
+}
+impl Drop for DropAllocator {
+    fn drop(&mut self) {}
+}
+
+struct HasDrop;
+impl Drop for HasDrop {
+    fn drop(&mut self) {}
+}
+
+// EMIT_MIR box_conditional_drop_allocator.main.ElaborateDrops.diff
+fn main() {
+    let b = Box::new_in(HasDrop, DropAllocator);
+    if true {
+        drop(*b);
+    } else {
+        drop(b);
+    }
+}
diff --git a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff
index d465b8bded2..fa88211383a 100644
--- a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff
@@ -40,7 +40,7 @@
 +     coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:17: 19:18 (#0);
 +     coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:23: 19:30 (#0);
 +     coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:31: 19:32 (#0);
-+     coverage Code { bcb: bcb2 } => $DIR/branch_match_arms.rs:21:2: 21:2 (#0);
++     coverage Code { bcb: bcb2 } => $DIR/branch_match_arms.rs:21:1: 21:2 (#0);
 + 
       bb0: {
 +         Coverage::VirtualCounter(bcb0);
diff --git a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff
index cf6d85abd80..9b6d2b22087 100644
--- a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff
@@ -6,7 +6,7 @@
   
 +     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:27:1: 27:17 (#0);
 +     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:28:5: 28:9 (#0);
-+     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:29:2: 29:2 (#0);
++     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:29:1: 29:2 (#0);
 + 
       bb0: {
 +         Coverage::VirtualCounter(bcb0);
diff --git a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff
index 980c5e202ff..b2bb2375aee 100644
--- a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff
@@ -10,8 +10,8 @@
 +     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:13:1: 13:10 (#0);
 +     coverage Code { bcb: bcb1 } => $DIR/instrument_coverage.rs:15:12: 15:15 (#0);
 +     coverage Code { bcb: bcb2 } => $DIR/instrument_coverage.rs:16:13: 16:18 (#0);
-+     coverage Code { bcb: bcb3 } => $DIR/instrument_coverage.rs:17:10: 17:10 (#0);
-+     coverage Code { bcb: bcb2 } => $DIR/instrument_coverage.rs:19:2: 19:2 (#0);
++     coverage Code { bcb: bcb3 } => $DIR/instrument_coverage.rs:17:9: 17:10 (#0);
++     coverage Code { bcb: bcb2 } => $DIR/instrument_coverage.rs:19:1: 19:2 (#0);
 + 
       bb0: {
 +         Coverage::VirtualCounter(bcb0);
diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff
index b707cd41788..2eb78c08ee8 100644
--- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff
+++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff
@@ -10,8 +10,8 @@
       coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:13:1: 13:10 (#0);
       coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0);
       coverage Code { bcb: bcb3 } => $DIR/instrument_coverage_cleanup.rs:14:37: 14:39 (#0);
-      coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:39: 14:39 (#0);
-      coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:2: 15:2 (#0);
+      coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:38: 14:39 (#0);
+      coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:1: 15:2 (#0);
       coverage Branch { true_bcb: bcb3, false_bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0);
   
       bb0: {
diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff
index 239b845c231..0c1bc24b6dc 100644
--- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff
@@ -10,8 +10,8 @@
 +     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:13:1: 13:10 (#0);
 +     coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0);
 +     coverage Code { bcb: bcb3 } => $DIR/instrument_coverage_cleanup.rs:14:37: 14:39 (#0);
-+     coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:39: 14:39 (#0);
-+     coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:2: 15:2 (#0);
++     coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:38: 14:39 (#0);
++     coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:1: 15:2 (#0);
 +     coverage Branch { true_bcb: bcb3, false_bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0);
 + 
       bb0: {
diff --git a/tests/mir-opt/sroa/simd_sroa.foo.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa/simd_sroa.foo.ScalarReplacementOfAggregates.diff
new file mode 100644
index 00000000000..74403247108
--- /dev/null
+++ b/tests/mir-opt/sroa/simd_sroa.foo.ScalarReplacementOfAggregates.diff
@@ -0,0 +1,32 @@
+- // MIR for `foo` before ScalarReplacementOfAggregates
++ // MIR for `foo` after ScalarReplacementOfAggregates
+  
+  fn foo(_1: &[Simd<u8, 16>], _2: Simd<u8, 16>) -> () {
+      debug simds => _1;
+      debug _unused => _2;
+      let mut _0: ();
+      let _3: std::simd::Simd<u8, 16>;
+      let _4: usize;
+      let mut _5: usize;
+      let mut _6: bool;
+      scope 1 {
+          debug a => _3;
+      }
+  
+      bb0: {
+          StorageLive(_3);
+          StorageLive(_4);
+          _4 = const 0_usize;
+          _5 = PtrMetadata(copy _1);
+          _6 = Lt(copy _4, copy _5);
+          assert(move _6, "index out of bounds: the length is {} but the index is {}", move _5, copy _4) -> [success: bb1, unwind continue];
+      }
+  
+      bb1: {
+          _3 = copy (*_1)[_4];
+          StorageDead(_4);
+          StorageDead(_3);
+          return;
+      }
+  }
+  
diff --git a/tests/mir-opt/sroa/simd_sroa.rs b/tests/mir-opt/sroa/simd_sroa.rs
new file mode 100644
index 00000000000..1ae84d3f975
--- /dev/null
+++ b/tests/mir-opt/sroa/simd_sroa.rs
@@ -0,0 +1,18 @@
+//@ needs-unwind
+#![feature(portable_simd)]
+
+// SRoA expands things even if they're unused
+// <https://github.com/rust-lang/rust/issues/144621>
+
+use std::simd::Simd;
+
+// EMIT_MIR simd_sroa.foo.ScalarReplacementOfAggregates.diff
+pub(crate) fn foo(simds: &[Simd<u8, 16>], _unused: Simd<u8, 16>) {
+    // CHECK-LABEL: fn foo
+    // CHECK-NOT: [u8; 16]
+    // CHECK: let [[SIMD:_.+]]: std::simd::Simd<u8, 16>;
+    // CHECK-NOT: [u8; 16]
+    // CHECK: [[SIMD]] = copy (*_1)[0 of 1];
+    // CHECK-NOT: [u8; 16]
+    let a = simds[0];
+}
diff --git a/tests/run-make/cross-lang-lto-clang/rmake.rs b/tests/run-make/cross-lang-lto-clang/rmake.rs
index 3fed6ea2066..f209318abbc 100644
--- a/tests/run-make/cross-lang-lto-clang/rmake.rs
+++ b/tests/run-make/cross-lang-lto-clang/rmake.rs
@@ -28,7 +28,17 @@ static C_NEVER_INLINED_PATTERN: &'static str = "bl.*<c_never_inlined>";
 static C_NEVER_INLINED_PATTERN: &'static str = "call.*c_never_inlined";
 
 fn main() {
+    test_lto(false);
+    test_lto(true);
+}
+
+fn test_lto(fat_lto: bool) {
+    let lto = if fat_lto { "fat" } else { "thin" };
+    let clang_lto = if fat_lto { "full" } else { "thin" };
+    println!("Running {lto} lto");
+
     rustc()
+        .lto(lto)
         .linker_plugin_lto("on")
         .output(static_lib_name("rustlib-xlto"))
         .opt_level("2")
@@ -36,30 +46,36 @@ fn main() {
         .input("rustlib.rs")
         .run();
     clang()
-        .lto("thin")
+        .lto(clang_lto)
         .use_ld("lld")
         .arg("-lrustlib-xlto")
         .out_exe("cmain")
         .input("cmain.c")
         .arg("-O3")
         .run();
+
+    let dump = llvm_objdump().disassemble().input("cmain").run();
     // Make sure we don't find a call instruction to the function we expect to
     // always be inlined.
-    llvm_objdump()
-        .disassemble()
-        .input("cmain")
-        .run()
-        .assert_stdout_not_contains_regex(RUST_ALWAYS_INLINED_PATTERN);
+    dump.assert_stdout_not_contains_regex(RUST_ALWAYS_INLINED_PATTERN);
     // As a sanity check, make sure we do find a call instruction to a
     // non-inlined function
-    llvm_objdump()
-        .disassemble()
-        .input("cmain")
-        .run()
-        .assert_stdout_contains_regex(RUST_NEVER_INLINED_PATTERN);
-    clang().input("clib.c").lto("thin").arg("-c").out_exe("clib.o").arg("-O2").run();
+    #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+    dump.assert_stdout_contains_regex(RUST_NEVER_INLINED_PATTERN);
+    #[cfg(any(target_arch = "aarch64", target_arch = "arm"))]
+    {
+        if fat_lto {
+            // fat lto inlines this anyway
+            dump.assert_stdout_not_contains_regex(RUST_NEVER_INLINED_PATTERN);
+        } else {
+            dump.assert_stdout_contains_regex(RUST_NEVER_INLINED_PATTERN);
+        }
+    }
+
+    clang().input("clib.c").lto(clang_lto).arg("-c").out_exe("clib.o").arg("-O2").run();
     llvm_ar().obj_to_ar().output_input(static_lib_name("xyz"), "clib.o").run();
     rustc()
+        .lto(lto)
         .linker_plugin_lto("on")
         .opt_level("2")
         .linker(&env_var("CLANG"))
@@ -67,14 +83,13 @@ fn main() {
         .input("main.rs")
         .output("rsmain")
         .run();
-    llvm_objdump()
-        .disassemble()
-        .input("rsmain")
-        .run()
-        .assert_stdout_not_contains_regex(C_ALWAYS_INLINED_PATTERN);
-    llvm_objdump()
-        .disassemble()
-        .input("rsmain")
-        .run()
-        .assert_stdout_contains_regex(C_NEVER_INLINED_PATTERN);
+
+    let dump = llvm_objdump().disassemble().input("rsmain").run();
+    dump.assert_stdout_not_contains_regex(C_ALWAYS_INLINED_PATTERN);
+    if fat_lto {
+        // fat lto inlines this anyway
+        dump.assert_stdout_not_contains_regex(C_NEVER_INLINED_PATTERN);
+    } else {
+        dump.assert_stdout_contains_regex(C_NEVER_INLINED_PATTERN);
+    }
 }
diff --git a/tests/run-make/fat-then-thin-lto/lib.rs b/tests/run-make/fat-then-thin-lto/lib.rs
new file mode 100644
index 00000000000..c675dcb6e8a
--- /dev/null
+++ b/tests/run-make/fat-then-thin-lto/lib.rs
@@ -0,0 +1,13 @@
+#![allow(internal_features)]
+#![feature(no_core, lang_items)]
+#![no_core]
+#![crate_type = "rlib"]
+
+#[lang = "pointee_sized"]
+trait PointeeSized {}
+#[lang = "meta_sized"]
+trait MetaSized: PointeeSized {}
+#[lang = "sized"]
+trait Sized: MetaSized {}
+
+pub fn foo() {}
diff --git a/tests/run-make/fat-then-thin-lto/main.rs b/tests/run-make/fat-then-thin-lto/main.rs
new file mode 100644
index 00000000000..a3f2e18158b
--- /dev/null
+++ b/tests/run-make/fat-then-thin-lto/main.rs
@@ -0,0 +1,11 @@
+#![allow(internal_features)]
+#![feature(no_core, lang_items)]
+#![no_core]
+#![crate_type = "cdylib"]
+
+extern crate lib;
+
+#[unsafe(no_mangle)]
+pub fn bar() {
+    lib::foo();
+}
diff --git a/tests/run-make/fat-then-thin-lto/rmake.rs b/tests/run-make/fat-then-thin-lto/rmake.rs
new file mode 100644
index 00000000000..ef4f26689d4
--- /dev/null
+++ b/tests/run-make/fat-then-thin-lto/rmake.rs
@@ -0,0 +1,25 @@
+// Compile a library with lto=fat, then compile a binary with lto=thin
+// and check that lto is applied with the library.
+// The goal is to mimic the standard library being build with lto=fat
+// and allowing users to build with lto=thin.
+
+//@ only-x86_64-unknown-linux-gnu
+
+use run_make_support::{dynamic_lib_name, llvm_objdump, rustc};
+
+fn main() {
+    rustc().input("lib.rs").opt_level("3").lto("fat").run();
+    rustc().input("main.rs").panic("abort").opt_level("3").lto("thin").run();
+
+    llvm_objdump()
+        .input(dynamic_lib_name("main"))
+        .arg("--disassemble-symbols=bar")
+        .run()
+        // The called function should be inlined.
+        // Check that we have a ret (to detect tail
+        // calls with a jmp) and no call.
+        .assert_stdout_contains("bar")
+        .assert_stdout_contains("ret")
+        .assert_stdout_not_contains("foo")
+        .assert_stdout_not_contains("call");
+}
diff --git a/tests/run-make/linker-plugin-lto-fat/ir.ll b/tests/run-make/linker-plugin-lto-fat/ir.ll
new file mode 100644
index 00000000000..fa3dbdd4e08
--- /dev/null
+++ b/tests/run-make/linker-plugin-lto-fat/ir.ll
@@ -0,0 +1,6 @@
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @ir_callee() {
+  ret void
+}
diff --git a/tests/run-make/linker-plugin-lto-fat/main.rs b/tests/run-make/linker-plugin-lto-fat/main.rs
new file mode 100644
index 00000000000..ad2a90bc801
--- /dev/null
+++ b/tests/run-make/linker-plugin-lto-fat/main.rs
@@ -0,0 +1,22 @@
+#![allow(internal_features)]
+#![feature(no_core, lang_items)]
+#![no_core]
+#![crate_type = "cdylib"]
+
+#[lang = "pointee_sized"]
+trait PointeeSized {}
+#[lang = "meta_sized"]
+trait MetaSized: PointeeSized {}
+#[lang = "sized"]
+trait Sized: MetaSized {}
+
+extern "C" {
+    fn ir_callee();
+}
+
+#[no_mangle]
+extern "C" fn rs_foo() {
+    unsafe {
+        ir_callee();
+    }
+}
diff --git a/tests/run-make/linker-plugin-lto-fat/rmake.rs b/tests/run-make/linker-plugin-lto-fat/rmake.rs
new file mode 100644
index 00000000000..ff5b647a594
--- /dev/null
+++ b/tests/run-make/linker-plugin-lto-fat/rmake.rs
@@ -0,0 +1,33 @@
+// Check that -C lto=fat with -C linker-plugin-lto actually works and can inline functions.
+// A library is created from LLVM IR, defining a single function. Then a dylib is compiled,
+// linking to the library and calling the function from the library.
+// The function from the library should end up inlined and disappear from the output.
+
+//@ only-x86_64-unknown-linux-gnu
+//@ needs-rust-lld
+
+use run_make_support::{dynamic_lib_name, llvm_as, llvm_objdump, rustc};
+
+fn main() {
+    llvm_as().input("ir.ll").run();
+    rustc()
+        .input("main.rs")
+        .opt_level("3")
+        .lto("fat")
+        .linker_plugin_lto("on")
+        .link_arg("ir.bc")
+        .arg("-Zunstable-options")
+        .arg("-Clinker-features=+lld")
+        .run();
+
+    llvm_objdump()
+        .input(dynamic_lib_name("main"))
+        .arg("--disassemble-symbols=rs_foo")
+        .run()
+        // The called function should be inlined.
+        // Check that we have a ret (to detect tail
+        // calls with a jmp) and no call.
+        .assert_stdout_contains("foo")
+        .assert_stdout_contains("ret")
+        .assert_stdout_not_contains("call");
+}
diff --git a/tests/rustdoc-ui/2024-doctests-checks.rs b/tests/rustdoc-ui/2024-doctests-checks.rs
index 0c3a11771f3..61f90fe6231 100644
--- a/tests/rustdoc-ui/2024-doctests-checks.rs
+++ b/tests/rustdoc-ui/2024-doctests-checks.rs
@@ -3,6 +3,8 @@
 //@ compile-flags: --test --test-args=--test-threads=1
 //@ normalize-stdout: "tests/rustdoc-ui" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ normalize-stdout: ".rs:\d+:\d+" -> ".rs:$$LINE:$$COL"
 
 /// ```
diff --git a/tests/rustdoc-ui/2024-doctests-checks.stdout b/tests/rustdoc-ui/2024-doctests-checks.stdout
index 534fe466fe7..c86eafd61b9 100644
--- a/tests/rustdoc-ui/2024-doctests-checks.stdout
+++ b/tests/rustdoc-ui/2024-doctests-checks.stdout
@@ -1,12 +1,13 @@
 
 running 1 test
-test $DIR/2024-doctests-checks.rs - Foo (line 8) ... ok
+test $DIR/2024-doctests-checks.rs - Foo (line 10) ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
 
 running 1 test
-test $DIR/2024-doctests-checks.rs - Foo (line 15) ... ok
+test $DIR/2024-doctests-checks.rs - Foo (line 17) ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/2024-doctests-crate-attribute.rs b/tests/rustdoc-ui/2024-doctests-crate-attribute.rs
index c9887cbc63b..416d50cb070 100644
--- a/tests/rustdoc-ui/2024-doctests-crate-attribute.rs
+++ b/tests/rustdoc-ui/2024-doctests-crate-attribute.rs
@@ -4,6 +4,8 @@
 //@ normalize-stdout: "tests/rustdoc-ui" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
 //@ normalize-stdout: ".rs:\d+:\d+" -> ".rs:$$LINE:$$COL"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 
 /// This doctest is used to ensure that if a crate attribute is present,
 /// it will not be part of the merged doctests.
diff --git a/tests/rustdoc-ui/2024-doctests-crate-attribute.stdout b/tests/rustdoc-ui/2024-doctests-crate-attribute.stdout
index c084ac4522e..20618426312 100644
--- a/tests/rustdoc-ui/2024-doctests-crate-attribute.stdout
+++ b/tests/rustdoc-ui/2024-doctests-crate-attribute.stdout
@@ -1,12 +1,13 @@
 
 running 1 test
-test $DIR/2024-doctests-crate-attribute.rs - Foo (line 20) ... ok
+test $DIR/2024-doctests-crate-attribute.rs - Foo (line 22) ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
 
 running 1 test
-test $DIR/2024-doctests-crate-attribute.rs - Foo (line 11) ... ok
+test $DIR/2024-doctests-crate-attribute.rs - Foo (line 13) ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/dead-code-2024.rs b/tests/rustdoc-ui/doctest/dead-code-2024.rs
index 079d44570bb..e02d2601c58 100644
--- a/tests/rustdoc-ui/doctest/dead-code-2024.rs
+++ b/tests/rustdoc-ui/doctest/dead-code-2024.rs
@@ -4,6 +4,8 @@
 //@ compile-flags:--test
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 #![doc(test(attr(allow(unused_variables), deny(warnings))))]
diff --git a/tests/rustdoc-ui/doctest/dead-code-2024.stdout b/tests/rustdoc-ui/doctest/dead-code-2024.stdout
index a943a177e10..bf9cd65200b 100644
--- a/tests/rustdoc-ui/doctest/dead-code-2024.stdout
+++ b/tests/rustdoc-ui/doctest/dead-code-2024.stdout
@@ -1,18 +1,18 @@
 
 running 1 test
-test $DIR/dead-code-2024.rs - f (line 13) - compile ... FAILED
+test $DIR/dead-code-2024.rs - f (line 15) - compile ... FAILED
 
 failures:
 
----- $DIR/dead-code-2024.rs - f (line 13) stdout ----
+---- $DIR/dead-code-2024.rs - f (line 15) stdout ----
 error: trait `T` is never used
-  --> $DIR/dead-code-2024.rs:14:7
+  --> $DIR/dead-code-2024.rs:16:7
    |
 LL | trait T { fn f(); }
    |       ^
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-2024.rs:12:9
+  --> $DIR/dead-code-2024.rs:14:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -23,7 +23,8 @@ error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/dead-code-2024.rs - f (line 13)
+    $DIR/dead-code-2024.rs - f (line 15)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/dead-code-items.rs b/tests/rustdoc-ui/doctest/dead-code-items.rs
index 015504cbced..ff59bfaabc4 100644
--- a/tests/rustdoc-ui/doctest/dead-code-items.rs
+++ b/tests/rustdoc-ui/doctest/dead-code-items.rs
@@ -4,6 +4,8 @@
 //@ compile-flags:--test --test-args=--test-threads=1
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 #![doc(test(attr(deny(warnings))))]
diff --git a/tests/rustdoc-ui/doctest/dead-code-items.stdout b/tests/rustdoc-ui/doctest/dead-code-items.stdout
index 4b9d8be94dd..ecfe09f09ce 100644
--- a/tests/rustdoc-ui/doctest/dead-code-items.stdout
+++ b/tests/rustdoc-ui/doctest/dead-code-items.stdout
@@ -1,30 +1,30 @@
 
 running 13 tests
-test $DIR/dead-code-items.rs - A (line 32) - compile ... ok
-test $DIR/dead-code-items.rs - A (line 88) - compile ... ok
-test $DIR/dead-code-items.rs - A::field (line 39) - compile ... FAILED
-test $DIR/dead-code-items.rs - A::method (line 94) - compile ... ok
-test $DIR/dead-code-items.rs - C (line 22) - compile ... FAILED
-test $DIR/dead-code-items.rs - Enum (line 70) - compile ... FAILED
-test $DIR/dead-code-items.rs - Enum::Variant1 (line 77) - compile ... FAILED
-test $DIR/dead-code-items.rs - MyTrait (line 103) - compile ... FAILED
-test $DIR/dead-code-items.rs - MyTrait::my_trait_fn (line 110) - compile ... FAILED
-test $DIR/dead-code-items.rs - S (line 14) - compile ... ok
-test $DIR/dead-code-items.rs - U (line 48) - compile ... ok
-test $DIR/dead-code-items.rs - U::field (line 55) - compile ... FAILED
-test $DIR/dead-code-items.rs - U::field2 (line 61) - compile ... ok
+test $DIR/dead-code-items.rs - A (line 34) - compile ... ok
+test $DIR/dead-code-items.rs - A (line 90) - compile ... ok
+test $DIR/dead-code-items.rs - A::field (line 41) - compile ... FAILED
+test $DIR/dead-code-items.rs - A::method (line 96) - compile ... ok
+test $DIR/dead-code-items.rs - C (line 24) - compile ... FAILED
+test $DIR/dead-code-items.rs - Enum (line 72) - compile ... FAILED
+test $DIR/dead-code-items.rs - Enum::Variant1 (line 79) - compile ... FAILED
+test $DIR/dead-code-items.rs - MyTrait (line 105) - compile ... FAILED
+test $DIR/dead-code-items.rs - MyTrait::my_trait_fn (line 112) - compile ... FAILED
+test $DIR/dead-code-items.rs - S (line 16) - compile ... ok
+test $DIR/dead-code-items.rs - U (line 50) - compile ... ok
+test $DIR/dead-code-items.rs - U::field (line 57) - compile ... FAILED
+test $DIR/dead-code-items.rs - U::field2 (line 63) - compile ... ok
 
 failures:
 
----- $DIR/dead-code-items.rs - A::field (line 39) stdout ----
+---- $DIR/dead-code-items.rs - A::field (line 41) stdout ----
 error: trait `DeadCodeInField` is never used
-  --> $DIR/dead-code-items.rs:40:7
+  --> $DIR/dead-code-items.rs:42:7
    |
 LL | trait DeadCodeInField {}
    |       ^^^^^^^^^^^^^^^
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:38:9
+  --> $DIR/dead-code-items.rs:40:9
    |
 LL | #![deny(dead_code)]
    |         ^^^^^^^^^
@@ -32,15 +32,15 @@ LL | #![deny(dead_code)]
 error: aborting due to 1 previous error
 
 Couldn't compile the test.
----- $DIR/dead-code-items.rs - C (line 22) stdout ----
+---- $DIR/dead-code-items.rs - C (line 24) stdout ----
 error: unused variable: `unused_error`
-  --> $DIR/dead-code-items.rs:23:5
+  --> $DIR/dead-code-items.rs:25:5
    |
 LL | let unused_error = 5;
    |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_error`
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:20:9
+  --> $DIR/dead-code-items.rs:22:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -49,15 +49,15 @@ LL | #![deny(warnings)]
 error: aborting due to 1 previous error
 
 Couldn't compile the test.
----- $DIR/dead-code-items.rs - Enum (line 70) stdout ----
+---- $DIR/dead-code-items.rs - Enum (line 72) stdout ----
 error: unused variable: `not_dead_code_but_unused`
-  --> $DIR/dead-code-items.rs:71:5
+  --> $DIR/dead-code-items.rs:73:5
    |
 LL | let not_dead_code_but_unused = 5;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_not_dead_code_but_unused`
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:68:9
+  --> $DIR/dead-code-items.rs:70:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -66,15 +66,15 @@ LL | #![deny(warnings)]
 error: aborting due to 1 previous error
 
 Couldn't compile the test.
----- $DIR/dead-code-items.rs - Enum::Variant1 (line 77) stdout ----
+---- $DIR/dead-code-items.rs - Enum::Variant1 (line 79) stdout ----
 error: unused variable: `unused_in_variant`
-  --> $DIR/dead-code-items.rs:80:17
+  --> $DIR/dead-code-items.rs:82:17
    |
 LL | fn main() { let unused_in_variant = 5; }
    |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_in_variant`
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:75:9
+  --> $DIR/dead-code-items.rs:77:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -83,15 +83,15 @@ LL | #![deny(warnings)]
 error: aborting due to 1 previous error
 
 Couldn't compile the test.
----- $DIR/dead-code-items.rs - MyTrait (line 103) stdout ----
+---- $DIR/dead-code-items.rs - MyTrait (line 105) stdout ----
 error: trait `StillDeadCodeAtMyTrait` is never used
-  --> $DIR/dead-code-items.rs:104:7
+  --> $DIR/dead-code-items.rs:106:7
    |
 LL | trait StillDeadCodeAtMyTrait { }
    |       ^^^^^^^^^^^^^^^^^^^^^^
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:102:9
+  --> $DIR/dead-code-items.rs:104:9
    |
 LL | #![deny(dead_code)]
    |         ^^^^^^^^^
@@ -99,15 +99,15 @@ LL | #![deny(dead_code)]
 error: aborting due to 1 previous error
 
 Couldn't compile the test.
----- $DIR/dead-code-items.rs - MyTrait::my_trait_fn (line 110) stdout ----
+---- $DIR/dead-code-items.rs - MyTrait::my_trait_fn (line 112) stdout ----
 error: unused variable: `unused_in_impl`
-  --> $DIR/dead-code-items.rs:113:17
+  --> $DIR/dead-code-items.rs:115:17
    |
 LL | fn main() { let unused_in_impl = 5; }
    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_in_impl`
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:108:9
+  --> $DIR/dead-code-items.rs:110:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -116,15 +116,15 @@ LL | #![deny(warnings)]
 error: aborting due to 1 previous error
 
 Couldn't compile the test.
----- $DIR/dead-code-items.rs - U::field (line 55) stdout ----
+---- $DIR/dead-code-items.rs - U::field (line 57) stdout ----
 error: trait `DeadCodeInUnionField` is never used
-  --> $DIR/dead-code-items.rs:56:7
+  --> $DIR/dead-code-items.rs:58:7
    |
 LL | trait DeadCodeInUnionField {}
    |       ^^^^^^^^^^^^^^^^^^^^
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-items.rs:54:9
+  --> $DIR/dead-code-items.rs:56:9
    |
 LL | #![deny(dead_code)]
    |         ^^^^^^^^^
@@ -134,13 +134,14 @@ error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/dead-code-items.rs - A::field (line 39)
-    $DIR/dead-code-items.rs - C (line 22)
-    $DIR/dead-code-items.rs - Enum (line 70)
-    $DIR/dead-code-items.rs - Enum::Variant1 (line 77)
-    $DIR/dead-code-items.rs - MyTrait (line 103)
-    $DIR/dead-code-items.rs - MyTrait::my_trait_fn (line 110)
-    $DIR/dead-code-items.rs - U::field (line 55)
+    $DIR/dead-code-items.rs - A::field (line 41)
+    $DIR/dead-code-items.rs - C (line 24)
+    $DIR/dead-code-items.rs - Enum (line 72)
+    $DIR/dead-code-items.rs - Enum::Variant1 (line 79)
+    $DIR/dead-code-items.rs - MyTrait (line 105)
+    $DIR/dead-code-items.rs - MyTrait::my_trait_fn (line 112)
+    $DIR/dead-code-items.rs - U::field (line 57)
 
 test result: FAILED. 6 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/dead-code-module-2.rs b/tests/rustdoc-ui/doctest/dead-code-module-2.rs
index de7b11b91ec..fd9c313ec9a 100644
--- a/tests/rustdoc-ui/doctest/dead-code-module-2.rs
+++ b/tests/rustdoc-ui/doctest/dead-code-module-2.rs
@@ -4,6 +4,8 @@
 //@ compile-flags:--test
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 #![doc(test(attr(allow(unused_variables))))]
diff --git a/tests/rustdoc-ui/doctest/dead-code-module-2.stdout b/tests/rustdoc-ui/doctest/dead-code-module-2.stdout
index d44068dcbf5..cf737996d5c 100644
--- a/tests/rustdoc-ui/doctest/dead-code-module-2.stdout
+++ b/tests/rustdoc-ui/doctest/dead-code-module-2.stdout
@@ -1,24 +1,24 @@
 
 running 1 test
-test $DIR/dead-code-module-2.rs - g (line 24) - compile ... ok
+test $DIR/dead-code-module-2.rs - g (line 26) - compile ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
 
 running 1 test
-test $DIR/dead-code-module-2.rs - my_mod::f (line 16) - compile ... FAILED
+test $DIR/dead-code-module-2.rs - my_mod::f (line 18) - compile ... FAILED
 
 failures:
 
----- $DIR/dead-code-module-2.rs - my_mod::f (line 16) stdout ----
+---- $DIR/dead-code-module-2.rs - my_mod::f (line 18) stdout ----
 error: trait `T` is never used
-  --> $DIR/dead-code-module-2.rs:17:7
+  --> $DIR/dead-code-module-2.rs:19:7
    |
 LL | trait T { fn f(); }
    |       ^
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-module-2.rs:15:9
+  --> $DIR/dead-code-module-2.rs:17:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -29,7 +29,8 @@ error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/dead-code-module-2.rs - my_mod::f (line 16)
+    $DIR/dead-code-module-2.rs - my_mod::f (line 18)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/dead-code-module.rs b/tests/rustdoc-ui/doctest/dead-code-module.rs
index f825749a6a2..d3103ad28e9 100644
--- a/tests/rustdoc-ui/doctest/dead-code-module.rs
+++ b/tests/rustdoc-ui/doctest/dead-code-module.rs
@@ -4,6 +4,8 @@
 //@ compile-flags:--test
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 mod my_mod {
diff --git a/tests/rustdoc-ui/doctest/dead-code-module.stdout b/tests/rustdoc-ui/doctest/dead-code-module.stdout
index b5ccf225d25..83c6af3775e 100644
--- a/tests/rustdoc-ui/doctest/dead-code-module.stdout
+++ b/tests/rustdoc-ui/doctest/dead-code-module.stdout
@@ -1,18 +1,18 @@
 
 running 1 test
-test $DIR/dead-code-module.rs - my_mod::f (line 14) - compile ... FAILED
+test $DIR/dead-code-module.rs - my_mod::f (line 16) - compile ... FAILED
 
 failures:
 
----- $DIR/dead-code-module.rs - my_mod::f (line 14) stdout ----
+---- $DIR/dead-code-module.rs - my_mod::f (line 16) stdout ----
 error: trait `T` is never used
-  --> $DIR/dead-code-module.rs:15:7
+  --> $DIR/dead-code-module.rs:17:7
    |
 LL | trait T { fn f(); }
    |       ^
    |
 note: the lint level is defined here
-  --> $DIR/dead-code-module.rs:13:9
+  --> $DIR/dead-code-module.rs:15:9
    |
 LL | #![deny(warnings)]
    |         ^^^^^^^^
@@ -23,7 +23,8 @@ error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/dead-code-module.rs - my_mod::f (line 14)
+    $DIR/dead-code-module.rs - my_mod::f (line 16)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/doctest-output-include-fail.rs b/tests/rustdoc-ui/doctest/doctest-output-include-fail.rs
index a47bac3daef..2f0d6756b27 100644
--- a/tests/rustdoc-ui/doctest/doctest-output-include-fail.rs
+++ b/tests/rustdoc-ui/doctest/doctest-output-include-fail.rs
@@ -2,6 +2,8 @@
 //@ compile-flags:--test --test-args=--test-threads=1
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 // https://github.com/rust-lang/rust/issues/130470
diff --git a/tests/rustdoc-ui/doctest/doctest-output-include-fail.stdout b/tests/rustdoc-ui/doctest/doctest-output-include-fail.stdout
index 22d15f8743c..ceaf60b1201 100644
--- a/tests/rustdoc-ui/doctest/doctest-output-include-fail.stdout
+++ b/tests/rustdoc-ui/doctest/doctest-output-include-fail.stdout
@@ -22,3 +22,4 @@ failures:
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/edition-2024-error-output.rs b/tests/rustdoc-ui/doctest/edition-2024-error-output.rs
index 82a85debcd1..e1e57ad01cd 100644
--- a/tests/rustdoc-ui/doctest/edition-2024-error-output.rs
+++ b/tests/rustdoc-ui/doctest/edition-2024-error-output.rs
@@ -6,6 +6,8 @@
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "panicked at .+rs:" -> "panicked at $$TMP:"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ rustc-env:RUST_BACKTRACE=0
 //@ failure-status: 101
 
diff --git a/tests/rustdoc-ui/doctest/edition-2024-error-output.stdout b/tests/rustdoc-ui/doctest/edition-2024-error-output.stdout
index 273d7071237..ab6aca239af 100644
--- a/tests/rustdoc-ui/doctest/edition-2024-error-output.stdout
+++ b/tests/rustdoc-ui/doctest/edition-2024-error-output.stdout
@@ -1,10 +1,10 @@
 
 running 1 test
-test $DIR/edition-2024-error-output.rs - (line 12) ... FAILED
+test $DIR/edition-2024-error-output.rs - (line 14) ... FAILED
 
 failures:
 
----- $DIR/edition-2024-error-output.rs - (line 12) stdout ----
+---- $DIR/edition-2024-error-output.rs - (line 14) stdout ----
 Test executable failed (exit status: 101).
 
 stderr:
@@ -18,7 +18,8 @@ note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 
 failures:
-    $DIR/edition-2024-error-output.rs - (line 12)
+    $DIR/edition-2024-error-output.rs - (line 14)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-should-panic.rs b/tests/rustdoc-ui/doctest/failed-doctest-should-panic.rs
index 793f8654661..0504c3dc730 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-should-panic.rs
+++ b/tests/rustdoc-ui/doctest/failed-doctest-should-panic.rs
@@ -5,6 +5,8 @@
 //@ compile-flags:--test
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 /// ```should_panic
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-should-panic.stdout b/tests/rustdoc-ui/doctest/failed-doctest-should-panic.stdout
index 2b04b77c9dc..9047fe0dcdd 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-should-panic.stdout
+++ b/tests/rustdoc-ui/doctest/failed-doctest-should-panic.stdout
@@ -1,14 +1,15 @@
 
 running 1 test
-test $DIR/failed-doctest-should-panic.rs - Foo (line 10) - should panic ... FAILED
+test $DIR/failed-doctest-should-panic.rs - Foo (line 12) - should panic ... FAILED
 
 failures:
 
----- $DIR/failed-doctest-should-panic.rs - Foo (line 10) stdout ----
-note: test did not panic as expected at $DIR/failed-doctest-should-panic.rs:10:0
+---- $DIR/failed-doctest-should-panic.rs - Foo (line 12) stdout ----
+note: test did not panic as expected at $DIR/failed-doctest-should-panic.rs:12:0
 
 failures:
-    $DIR/failed-doctest-should-panic.rs - Foo (line 10)
+    $DIR/failed-doctest-should-panic.rs - Foo (line 12)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2015.stdout b/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2015.stdout
index ce767fb8443..d80c0da323d 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2015.stdout
+++ b/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2015.stdout
@@ -1,12 +1,12 @@
 
 running 1 test
-test $DIR/failed-doctest-test-crate.rs - m (line 14) ... FAILED
+test $DIR/failed-doctest-test-crate.rs - m (line 16) ... FAILED
 
 failures:
 
----- $DIR/failed-doctest-test-crate.rs - m (line 14) stdout ----
+---- $DIR/failed-doctest-test-crate.rs - m (line 16) stdout ----
 error[E0432]: unresolved import `test`
-  --> $DIR/failed-doctest-test-crate.rs:15:5
+  --> $DIR/failed-doctest-test-crate.rs:17:5
    |
 LL | use test::*;
    |     ^^^^ use of unresolved module or unlinked crate `test`
@@ -22,7 +22,7 @@ For more information about this error, try `rustc --explain E0432`.
 Couldn't compile the test.
 
 failures:
-    $DIR/failed-doctest-test-crate.rs - m (line 14)
+    $DIR/failed-doctest-test-crate.rs - m (line 16)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2024.stdout b/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2024.stdout
index 80642e93bbd..724bb9bee62 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2024.stdout
+++ b/tests/rustdoc-ui/doctest/failed-doctest-test-crate.edition2024.stdout
@@ -1,12 +1,12 @@
 
 running 1 test
-test $DIR/failed-doctest-test-crate.rs - m (line 14) ... FAILED
+test $DIR/failed-doctest-test-crate.rs - m (line 16) ... FAILED
 
 failures:
 
----- $DIR/failed-doctest-test-crate.rs - m (line 14) stdout ----
+---- $DIR/failed-doctest-test-crate.rs - m (line 16) stdout ----
 error[E0432]: unresolved import `test`
-  --> $DIR/failed-doctest-test-crate.rs:15:5
+  --> $DIR/failed-doctest-test-crate.rs:17:5
    |
 LL | use test::*;
    |     ^^^^ use of unresolved module or unlinked crate `test`
@@ -19,7 +19,8 @@ For more information about this error, try `rustc --explain E0432`.
 Couldn't compile the test.
 
 failures:
-    $DIR/failed-doctest-test-crate.rs - m (line 14)
+    $DIR/failed-doctest-test-crate.rs - m (line 16)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-test-crate.rs b/tests/rustdoc-ui/doctest/failed-doctest-test-crate.rs
index 6966d3df11c..75f7ac396f5 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-test-crate.rs
+++ b/tests/rustdoc-ui/doctest/failed-doctest-test-crate.rs
@@ -7,6 +7,8 @@
 //@ compile-flags:--test
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 /// <https://github.com/rust-lang/rust/pull/137899#discussion_r1976743383>
diff --git a/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2015.stdout b/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2015.stdout
index ff26e7e3231..0d00a9fc9c4 100644
--- a/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2015.stdout
+++ b/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2015.stdout
@@ -1,12 +1,12 @@
 
 running 1 test
-test $DIR/relative-path-include-bytes-132203.rs - (line 18) ... FAILED
+test $DIR/relative-path-include-bytes-132203.rs - (line 20) ... FAILED
 
 failures:
 
----- $DIR/relative-path-include-bytes-132203.rs - (line 18) stdout ----
+---- $DIR/relative-path-include-bytes-132203.rs - (line 20) stdout ----
 error: couldn't read `$DIR/relative-dir-empty-file`: $FILE_NOT_FOUND_MSG (os error 2)
-  --> $DIR/relative-path-include-bytes-132203.rs:19:9
+  --> $DIR/relative-path-include-bytes-132203.rs:21:9
    |
 LL | let x = include_bytes!("relative-dir-empty-file");
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -16,7 +16,7 @@ error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/relative-path-include-bytes-132203.rs - (line 18)
+    $DIR/relative-path-include-bytes-132203.rs - (line 20)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
diff --git a/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2024.stdout b/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2024.stdout
index e4c65703081..fa5bd7c93fa 100644
--- a/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2024.stdout
+++ b/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.edition2024.stdout
@@ -4,3 +4,4 @@ test $DIR/auxiliary/relative-dir.md - (line 1) ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.rs b/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.rs
index ceacd69a5fd..321edc3ee84 100644
--- a/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.rs
+++ b/tests/rustdoc-ui/doctest/relative-path-include-bytes-132203.rs
@@ -9,6 +9,8 @@
 //@ normalize-stdout: "tests.rustdoc-ui.doctest." -> "$$DIR/"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
 //@ normalize-stdout: "`: .* \(os error 2\)" -> "`: $$FILE_NOT_FOUND_MSG (os error 2)"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 
 // https://github.com/rust-lang/rust/issues/132203
 // This version, because it's edition2024, passes thanks to the new
diff --git a/tests/rustdoc-ui/doctest/stdout-and-stderr.rs b/tests/rustdoc-ui/doctest/stdout-and-stderr.rs
index 9b0c69d8839..a4eda8c7f83 100644
--- a/tests/rustdoc-ui/doctest/stdout-and-stderr.rs
+++ b/tests/rustdoc-ui/doctest/stdout-and-stderr.rs
@@ -9,6 +9,8 @@
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
 //@ normalize-stdout: "panicked at .+rs:" -> "panicked at $$TMP:"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 //@ rustc-env:RUST_BACKTRACE=0
 
diff --git a/tests/rustdoc-ui/doctest/stdout-and-stderr.stdout b/tests/rustdoc-ui/doctest/stdout-and-stderr.stdout
index b2febe1344f..a35a4d7c3cb 100644
--- a/tests/rustdoc-ui/doctest/stdout-and-stderr.stdout
+++ b/tests/rustdoc-ui/doctest/stdout-and-stderr.stdout
@@ -1,12 +1,12 @@
 
 running 3 tests
-test $DIR/stdout-and-stderr.rs - (line 15) ... FAILED
-test $DIR/stdout-and-stderr.rs - (line 20) ... FAILED
-test $DIR/stdout-and-stderr.rs - (line 24) ... FAILED
+test $DIR/stdout-and-stderr.rs - (line 17) ... FAILED
+test $DIR/stdout-and-stderr.rs - (line 22) ... FAILED
+test $DIR/stdout-and-stderr.rs - (line 26) ... FAILED
 
 failures:
 
----- $DIR/stdout-and-stderr.rs - (line 15) stdout ----
+---- $DIR/stdout-and-stderr.rs - (line 17) stdout ----
 Test executable failed (exit status: 101).
 
 stdout:
@@ -21,7 +21,7 @@ assertion `left == right` failed
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 
----- $DIR/stdout-and-stderr.rs - (line 20) stdout ----
+---- $DIR/stdout-and-stderr.rs - (line 22) stdout ----
 Test executable failed (exit status: 101).
 
 stderr:
@@ -33,14 +33,15 @@ assertion `left == right` failed
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 
----- $DIR/stdout-and-stderr.rs - (line 24) stdout ----
+---- $DIR/stdout-and-stderr.rs - (line 26) stdout ----
 Test executable failed (exit status: 1).
 
 
 failures:
-    $DIR/stdout-and-stderr.rs - (line 15)
-    $DIR/stdout-and-stderr.rs - (line 20)
-    $DIR/stdout-and-stderr.rs - (line 24)
+    $DIR/stdout-and-stderr.rs - (line 17)
+    $DIR/stdout-and-stderr.rs - (line 22)
+    $DIR/stdout-and-stderr.rs - (line 26)
 
 test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc-ui/doctest/wrong-ast-2024.rs b/tests/rustdoc-ui/doctest/wrong-ast-2024.rs
index 3b4fb3f3443..df30e01b25e 100644
--- a/tests/rustdoc-ui/doctest/wrong-ast-2024.rs
+++ b/tests/rustdoc-ui/doctest/wrong-ast-2024.rs
@@ -3,6 +3,8 @@
 //@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
 //@ normalize-stdout: ".rs:\d+:\d+" -> ".rs:$$LINE:$$COL"
+//@ normalize-stdout: "ran in \d+\.\d+s" -> "ran in $$TIME"
+//@ normalize-stdout: "compilation took \d+\.\d+s" -> "compilation took $$TIME"
 //@ failure-status: 101
 
 /// ```
diff --git a/tests/rustdoc-ui/doctest/wrong-ast-2024.stdout b/tests/rustdoc-ui/doctest/wrong-ast-2024.stdout
index 62e1fb10b9f..13567b41e51 100644
--- a/tests/rustdoc-ui/doctest/wrong-ast-2024.stdout
+++ b/tests/rustdoc-ui/doctest/wrong-ast-2024.stdout
@@ -1,17 +1,17 @@
 
 running 1 test
-test $DIR/wrong-ast-2024.rs - three (line 18) - should panic ... ok
+test $DIR/wrong-ast-2024.rs - three (line 20) - should panic ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
 
 running 2 tests
-test $DIR/wrong-ast-2024.rs - one (line 8) ... FAILED
-test $DIR/wrong-ast-2024.rs - two (line 13) ... FAILED
+test $DIR/wrong-ast-2024.rs - one (line 10) ... FAILED
+test $DIR/wrong-ast-2024.rs - two (line 15) ... FAILED
 
 failures:
 
----- $DIR/wrong-ast-2024.rs - one (line 8) stdout ----
+---- $DIR/wrong-ast-2024.rs - one (line 10) stdout ----
 error[E0758]: unterminated block comment
   --> $DIR/wrong-ast-2024.rs:$LINE:$COL
    |
@@ -22,7 +22,7 @@ error: aborting due to 1 previous error
 
 For more information about this error, try `rustc --explain E0758`.
 Couldn't compile the test.
----- $DIR/wrong-ast-2024.rs - two (line 13) stdout ----
+---- $DIR/wrong-ast-2024.rs - two (line 15) stdout ----
 error: unexpected closing delimiter: `}`
   --> $DIR/wrong-ast-2024.rs:$LINE:$COL
    |
@@ -34,8 +34,9 @@ error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/wrong-ast-2024.rs - one (line 8)
-    $DIR/wrong-ast-2024.rs - two (line 13)
+    $DIR/wrong-ast-2024.rs - one (line 10)
+    $DIR/wrong-ast-2024.rs - two (line 15)
 
 test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
+all doctests ran in $TIME; merged doctests compilation took $TIME
diff --git a/tests/rustdoc/extern/extern-html-alias.rs b/tests/rustdoc/extern/extern-html-alias.rs
new file mode 100644
index 00000000000..3ff782d3963
--- /dev/null
+++ b/tests/rustdoc/extern/extern-html-alias.rs
@@ -0,0 +1,9 @@
+//@ compile-flags:-Z unstable-options --extern-html-root-url externs_name=https://renamed.example.com  --extern-html-root-url empty=https://bad.invalid
+//@ aux-crate:externs_name=empty.rs
+//@ edition: 2018
+
+extern crate externs_name as renamed;
+
+//@ has extern_html_alias/index.html
+//@ has - '//a/@href' 'https://renamed.example.com/empty/index.html'
+pub use renamed as yet_different_name;
diff --git a/tests/rustdoc/extern/extern-html-fallback.rs b/tests/rustdoc/extern/extern-html-fallback.rs
new file mode 100644
index 00000000000..ddac9bf713c
--- /dev/null
+++ b/tests/rustdoc/extern/extern-html-fallback.rs
@@ -0,0 +1,14 @@
+//@ compile-flags:-Z unstable-options --extern-html-root-url yet_another_name=https://bad.invalid --extern-html-root-url renamed_privately=https://bad.invalid --extern-html-root-url renamed_locally=https://bad.invalid --extern-html-root-url empty=https://localhost
+//@ aux-crate:externs_name=empty.rs
+//@ edition: 2018
+
+mod m {
+    pub extern crate externs_name as renamed_privately;
+}
+
+// renaming within the crate's source code is not supposed to affect CLI flags
+extern crate externs_name as renamed_locally;
+
+//@ has extern_html_fallback/index.html
+//@ has - '//a/@href' 'https://localhost/empty/index.html'
+pub use crate::renamed_locally as yet_another_name;
diff --git a/tests/rustdoc/reexport/auxiliary/wrap-unnamable-type.rs b/tests/rustdoc/reexport/auxiliary/wrap-unnamable-type.rs
new file mode 100644
index 00000000000..7f8e346c8be
--- /dev/null
+++ b/tests/rustdoc/reexport/auxiliary/wrap-unnamable-type.rs
@@ -0,0 +1,12 @@
+pub trait Assoc {
+    type Ty;
+}
+
+pub struct Foo(<Foo as crate::Assoc>::Ty);
+
+const _X: () = {
+    impl crate::Assoc for Foo {
+        type Ty = Bar;
+    }
+    pub struct Bar;
+};
diff --git a/tests/rustdoc/reexport/wrapped-unnamble-type-143222.rs b/tests/rustdoc/reexport/wrapped-unnamble-type-143222.rs
new file mode 100644
index 00000000000..9a8893786f5
--- /dev/null
+++ b/tests/rustdoc/reexport/wrapped-unnamble-type-143222.rs
@@ -0,0 +1,16 @@
+//@ compile-flags: -Z normalize-docs --document-private-items -Zunstable-options --show-type-layout
+//@ aux-build:wrap-unnamable-type.rs
+//@ build-aux-docs
+
+// regression test for https://github.com/rust-lang/rust/issues/143222
+// makes sure normalizing docs does not cause us to link to unnamable types
+// in cross-crate reexports.
+
+#![crate_name = "foo"]
+
+extern crate wrap_unnamable_type as helper;
+
+//@ has 'foo/struct.Foo.html'
+//@ !hasraw - 'struct.Bar.html'
+#[doc(inline)]
+pub use helper::Foo;
diff --git a/tests/ui/async-await/async-drop/async-drop-box-allocator.rs b/tests/ui/async-await/async-drop/async-drop-box-allocator.rs
new file mode 100644
index 00000000000..86ebf8a0ffd
--- /dev/null
+++ b/tests/ui/async-await/async-drop/async-drop-box-allocator.rs
@@ -0,0 +1,134 @@
+//@ run-pass
+//@ check-run-results
+// struct `Foo` has both sync and async drop.
+// It's used as the allocator of a `Box` which is conditionally moved out of.
+// Sync version is called in sync context, async version is called in async function.
+
+#![feature(async_drop, allocator_api)]
+#![allow(incomplete_features)]
+
+use std::mem::ManuallyDrop;
+
+//@ edition: 2021
+
+#[inline(never)]
+fn myprintln(msg: &str, my_resource_handle: usize) {
+    println!("{} : {}", msg, my_resource_handle);
+}
+
+use std::{
+    future::{Future, async_drop_in_place, AsyncDrop},
+    pin::{pin, Pin},
+    sync::{mpsc, Arc},
+    task::{Context, Poll, Wake, Waker},
+    alloc::{AllocError, Allocator, Global, Layout},
+    ptr::NonNull,
+};
+
+struct Foo {
+    my_resource_handle: usize,
+}
+
+impl Foo {
+    fn new(my_resource_handle: usize) -> Self {
+        let out = Foo {
+            my_resource_handle,
+        };
+        myprintln("Foo::new()", my_resource_handle);
+        out
+    }
+}
+
+impl Drop for Foo {
+    fn drop(&mut self) {
+        myprintln("Foo::drop()", self.my_resource_handle);
+    }
+}
+
+impl AsyncDrop for Foo {
+    async fn drop(self: Pin<&mut Self>) {
+        myprintln("Foo::async drop()", self.my_resource_handle);
+    }
+}
+
+unsafe impl Allocator for Foo {
+    fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError> {
+        Global.allocate(layout)
+    }
+    unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout) {
+        Global.deallocate(ptr, layout);
+    }
+}
+
+struct HasDrop;
+impl Drop for HasDrop {
+    fn drop(&mut self) {}
+}
+
+fn main() {
+    {
+        let b = Box::new_in(HasDrop, Foo::new(7));
+
+        if true {
+            let _x = *b;
+        } else {
+            let _y = b;
+        }
+    }
+    println!("Middle");
+    block_on(bar(10));
+    println!("Done")
+}
+
+async fn bar(ident_base: usize) {
+    let b = Box::new_in(HasDrop, Foo::new(ident_base));
+
+    if true {
+        let _x = *b;
+    } else {
+        let _y = b;
+    }
+}
+
+fn block_on<F>(fut_unpin: F) -> F::Output
+where
+    F: Future,
+{
+    let mut fut_pin = pin!(ManuallyDrop::new(fut_unpin));
+    let mut fut: Pin<&mut F> = unsafe {
+        Pin::map_unchecked_mut(fut_pin.as_mut(), |x| &mut **x)
+    };
+    let (waker, rx) = simple_waker();
+    let mut context = Context::from_waker(&waker);
+    let rv = loop {
+        match fut.as_mut().poll(&mut context) {
+            Poll::Ready(out) => break out,
+            // expect wake in polls
+            Poll::Pending => rx.try_recv().unwrap(),
+        }
+    };
+    let drop_fut_unpin = unsafe { async_drop_in_place(fut.get_unchecked_mut()) };
+    let mut drop_fut: Pin<&mut _> = pin!(drop_fut_unpin);
+    loop {
+        match drop_fut.as_mut().poll(&mut context) {
+            Poll::Ready(()) => break,
+            Poll::Pending => rx.try_recv().unwrap(),
+        }
+    }
+    rv
+}
+
+fn simple_waker() -> (Waker, mpsc::Receiver<()>) {
+    struct SimpleWaker {
+        tx: std::sync::mpsc::Sender<()>,
+    }
+
+    impl Wake for SimpleWaker {
+        fn wake(self: Arc<Self>) {
+            self.tx.send(()).unwrap();
+        }
+    }
+
+    let (tx, rx) = mpsc::channel();
+    (Waker::from(Arc::new(SimpleWaker { tx })), rx)
+}
diff --git a/tests/ui/async-await/async-drop/async-drop-box-allocator.run.stdout b/tests/ui/async-await/async-drop/async-drop-box-allocator.run.stdout
new file mode 100644
index 00000000000..cb7d0b0fea5
--- /dev/null
+++ b/tests/ui/async-await/async-drop/async-drop-box-allocator.run.stdout
@@ -0,0 +1,6 @@
+Foo::new() : 7
+Foo::drop() : 7
+Middle
+Foo::new() : 10
+Foo::async drop() : 10
+Done
diff --git a/tests/ui/async-await/async-drop/async-drop-box.rs b/tests/ui/async-await/async-drop/async-drop-box.rs
new file mode 100644
index 00000000000..0a6ed412863
--- /dev/null
+++ b/tests/ui/async-await/async-drop/async-drop-box.rs
@@ -0,0 +1,109 @@
+//@ run-pass
+//@ check-run-results
+// struct `Foo` has both sync and async drop.
+// `Foo` is always inside `Box`
+// Sync version is called in sync context, async version is called in async function.
+
+//@ known-bug: #143658
+// async version is never actually called
+
+#![feature(async_drop)]
+#![allow(incomplete_features)]
+
+use std::mem::ManuallyDrop;
+
+//@ edition: 2021
+
+#[inline(never)]
+fn myprintln(msg: &str, my_resource_handle: usize) {
+    println!("{} : {}", msg, my_resource_handle);
+}
+
+use std::{
+    future::{Future, async_drop_in_place, AsyncDrop},
+    pin::{pin, Pin},
+    sync::{mpsc, Arc},
+    task::{Context, Poll, Wake, Waker},
+};
+
+struct Foo {
+    my_resource_handle: usize,
+}
+
+impl Foo {
+    fn new(my_resource_handle: usize) -> Self {
+        let out = Foo {
+            my_resource_handle,
+        };
+        myprintln("Foo::new()", my_resource_handle);
+        out
+    }
+}
+
+impl Drop for Foo {
+    fn drop(&mut self) {
+        myprintln("Foo::drop()", self.my_resource_handle);
+    }
+}
+
+impl AsyncDrop for Foo {
+    async fn drop(self: Pin<&mut Self>) {
+        myprintln("Foo::async drop()", self.my_resource_handle);
+    }
+}
+
+fn main() {
+    {
+        let _ = Box::new(Foo::new(7));
+    }
+    println!("Middle");
+    block_on(bar(10));
+    println!("Done")
+}
+
+async fn bar(ident_base: usize) {
+    let _first = Box::new(Foo::new(ident_base));
+}
+
+fn block_on<F>(fut_unpin: F) -> F::Output
+where
+    F: Future,
+{
+    let mut fut_pin = pin!(ManuallyDrop::new(fut_unpin));
+    let mut fut: Pin<&mut F> = unsafe {
+        Pin::map_unchecked_mut(fut_pin.as_mut(), |x| &mut **x)
+    };
+    let (waker, rx) = simple_waker();
+    let mut context = Context::from_waker(&waker);
+    let rv = loop {
+        match fut.as_mut().poll(&mut context) {
+            Poll::Ready(out) => break out,
+            // expect wake in polls
+            Poll::Pending => rx.try_recv().unwrap(),
+        }
+    };
+    let drop_fut_unpin = unsafe { async_drop_in_place(fut.get_unchecked_mut()) };
+    let mut drop_fut: Pin<&mut _> = pin!(drop_fut_unpin);
+    loop {
+        match drop_fut.as_mut().poll(&mut context) {
+            Poll::Ready(()) => break,
+            Poll::Pending => rx.try_recv().unwrap(),
+        }
+    }
+    rv
+}
+
+fn simple_waker() -> (Waker, mpsc::Receiver<()>) {
+    struct SimpleWaker {
+        tx: std::sync::mpsc::Sender<()>,
+    }
+
+    impl Wake for SimpleWaker {
+        fn wake(self: Arc<Self>) {
+            self.tx.send(()).unwrap();
+        }
+    }
+
+    let (tx, rx) = mpsc::channel();
+    (Waker::from(Arc::new(SimpleWaker { tx })), rx)
+}
diff --git a/tests/ui/async-await/async-drop/async-drop-box.run.stdout b/tests/ui/async-await/async-drop/async-drop-box.run.stdout
new file mode 100644
index 00000000000..a2dab2ba992
--- /dev/null
+++ b/tests/ui/async-await/async-drop/async-drop-box.run.stdout
@@ -0,0 +1,6 @@
+Foo::new() : 7
+Foo::drop() : 7
+Middle
+Foo::new() : 10
+Foo::drop() : 10
+Done
diff --git a/tests/ui/drop/box-conditional-drop-allocator.rs b/tests/ui/drop/box-conditional-drop-allocator.rs
new file mode 100644
index 00000000000..8f78da16473
--- /dev/null
+++ b/tests/ui/drop/box-conditional-drop-allocator.rs
@@ -0,0 +1,43 @@
+//@ run-pass
+#![feature(allocator_api)]
+
+// Regression test for #131082.
+// Testing that the allocator of a Box is dropped in conditional drops
+
+use std::alloc::{AllocError, Allocator, Global, Layout};
+use std::cell::Cell;
+use std::ptr::NonNull;
+
+struct DropCheckingAllocator<'a>(&'a Cell<bool>);
+
+unsafe impl Allocator for DropCheckingAllocator<'_> {
+    fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError> {
+        Global.allocate(layout)
+    }
+    unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout) {
+        Global.deallocate(ptr, layout);
+    }
+}
+impl Drop for DropCheckingAllocator<'_> {
+    fn drop(&mut self) {
+        self.0.set(true);
+    }
+}
+
+struct HasDrop;
+impl Drop for HasDrop {
+    fn drop(&mut self) {}
+}
+
+fn main() {
+    let dropped = Cell::new(false);
+    {
+        let b = Box::new_in(HasDrop, DropCheckingAllocator(&dropped));
+        if true {
+            drop(*b);
+        } else {
+            drop(b);
+        }
+    }
+    assert!(dropped.get());
+}
diff --git a/tests/ui/error-codes/E0423.stderr b/tests/ui/error-codes/E0423.stderr
index e50b8bd820c..b699e53fb48 100644
--- a/tests/ui/error-codes/E0423.stderr
+++ b/tests/ui/error-codes/E0423.stderr
@@ -54,7 +54,7 @@ help: use struct literal syntax instead
 LL -     let f = Foo();
 LL +     let f = Foo { a: val };
    |
-help: a function with a similar name exists (notice the capitalization difference)
+help: a function with a similar name exists (notice the capitalization)
    |
 LL -     let f = Foo();
 LL +     let f = foo();
diff --git a/tests/ui/error-emitter/auxiliary/close_window.rs b/tests/ui/error-emitter/auxiliary/close_window.rs
new file mode 100644
index 00000000000..e41313b6ab3
--- /dev/null
+++ b/tests/ui/error-emitter/auxiliary/close_window.rs
@@ -0,0 +1,4 @@
+pub struct S;
+impl S {
+    fn method(&self) {}
+}
diff --git a/tests/ui/error-emitter/close_window.ascii.stderr b/tests/ui/error-emitter/close_window.ascii.stderr
new file mode 100644
index 00000000000..e208b709393
--- /dev/null
+++ b/tests/ui/error-emitter/close_window.ascii.stderr
@@ -0,0 +1,14 @@
+error[E0624]: method `method` is private
+  --> $DIR/close_window.rs:9:7
+   |
+LL |     s.method();
+   |       ^^^^^^ private method
+   |
+  ::: $DIR/auxiliary/close_window.rs:3:5
+   |
+LL |     fn method(&self) {}
+   |     ---------------- private method defined here
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0624`.
diff --git a/tests/ui/error-emitter/close_window.rs b/tests/ui/error-emitter/close_window.rs
new file mode 100644
index 00000000000..879507c287a
--- /dev/null
+++ b/tests/ui/error-emitter/close_window.rs
@@ -0,0 +1,11 @@
+//@ aux-build:close_window.rs
+//@ revisions: ascii unicode
+//@[unicode] compile-flags: -Zunstable-options --error-format=human-unicode
+
+extern crate close_window;
+
+fn main() {
+   let s = close_window::S;
+    s.method();
+   //[ascii]~^ ERROR method `method` is private
+}
diff --git a/tests/ui/error-emitter/close_window.unicode.stderr b/tests/ui/error-emitter/close_window.unicode.stderr
new file mode 100644
index 00000000000..b4aa78a5ac9
--- /dev/null
+++ b/tests/ui/error-emitter/close_window.unicode.stderr
@@ -0,0 +1,14 @@
+error[E0624]: method `method` is private
+   ╭▸ $DIR/close_window.rs:9:7
+   │
+LL │     s.method();
+   │       ━━━━━━ private method
+   │
+   ⸬  $DIR/auxiliary/close_window.rs:3:5
+   │
+LL │     fn method(&self) {}
+   ╰╴    ──────────────── private method defined here
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0624`.
diff --git a/tests/ui/explicit-tail-calls/recursion-etc.rs b/tests/ui/explicit-tail-calls/recursion-etc.rs
new file mode 100644
index 00000000000..8c89ceb7869
--- /dev/null
+++ b/tests/ui/explicit-tail-calls/recursion-etc.rs
@@ -0,0 +1,17 @@
+//@ run-pass
+#![expect(incomplete_features)]
+#![feature(explicit_tail_calls)]
+
+use std::hint::black_box;
+
+pub fn count(curr: u64, top: u64) -> u64 {
+   if black_box(curr) >= top {
+        curr
+   } else {
+        become count(curr + 1, top)
+   }
+}
+
+fn main() {
+    println!("{}", count(0, black_box(1000000)));
+}
diff --git a/tests/ui/lint/lint-non-uppercase-usages.stderr b/tests/ui/lint/lint-non-uppercase-usages.stderr
index 7c7e573a88e..b34be31216d 100644
--- a/tests/ui/lint/lint-non-uppercase-usages.stderr
+++ b/tests/ui/lint/lint-non-uppercase-usages.stderr
@@ -29,7 +29,7 @@ warning: const parameter `foo` should have an upper case name
 LL | fn foo<const foo: u32>() {
    |              ^^^
    |
-help: convert the identifier to upper case (notice the capitalization difference)
+help: convert the identifier to upper case (notice the capitalization)
    |
 LL - fn foo<const foo: u32>() {
 LL + fn foo<const FOO: u32>() {
diff --git a/tests/ui/lint/wide_pointer_comparisons.rs b/tests/ui/lint/wide_pointer_comparisons.rs
index 05097cbf1e3..a5e3f4754b8 100644
--- a/tests/ui/lint/wide_pointer_comparisons.rs
+++ b/tests/ui/lint/wide_pointer_comparisons.rs
@@ -146,12 +146,10 @@ fn main() {
     {
         macro_rules! cmp {
             ($a:tt, $b:tt) => { $a == $b }
+            //~^ WARN ambiguous wide pointer comparison
         }
 
-        // FIXME: This lint uses some custom span combination logic.
-        // Rewrite it to adapt to the new metavariable span rules.
         cmp!(a, b);
-        //~^ WARN ambiguous wide pointer comparison
     }
 
     {
diff --git a/tests/ui/lint/wide_pointer_comparisons.stderr b/tests/ui/lint/wide_pointer_comparisons.stderr
index 4f5238e8252..4199ff62e2a 100644
--- a/tests/ui/lint/wide_pointer_comparisons.stderr
+++ b/tests/ui/lint/wide_pointer_comparisons.stderr
@@ -720,18 +720,20 @@ LL +         std::ptr::eq(*a, *b)
    |
 
 warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
-  --> $DIR/wide_pointer_comparisons.rs:153:14
+  --> $DIR/wide_pointer_comparisons.rs:148:33
    |
+LL |             ($a:tt, $b:tt) => { $a == $b }
+   |                                 ^^^^^^^^
+...
 LL |         cmp!(a, b);
-   |              ^^^^
-   |
-help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
+   |         ---------- in this macro invocation
    |
-LL |         cmp!(std::ptr::addr_eq(a, b));
-   |              ++++++++++++++++++    +
+   = help: use explicit `std::ptr::eq` method to compare metadata and addresses
+   = help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
+   = note: this warning originates in the macro `cmp` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
-  --> $DIR/wide_pointer_comparisons.rs:159:39
+  --> $DIR/wide_pointer_comparisons.rs:157:39
    |
 LL |             ($a:ident, $b:ident) => { $a == $b }
    |                                       ^^^^^^^^
@@ -747,7 +749,7 @@ LL +             ($a:ident, $b:ident) => { std::ptr::addr_eq($a, $b) }
    |
 
 warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
-  --> $DIR/wide_pointer_comparisons.rs:169:37
+  --> $DIR/wide_pointer_comparisons.rs:167:37
    |
 LL |             ($a:expr, $b:expr) => { $a == $b }
    |                                     ^^^^^^^^
diff --git a/tests/ui/parser/item-kw-case-mismatch.stderr b/tests/ui/parser/item-kw-case-mismatch.stderr
index df39eb10fdb..d2a1eb7f2f5 100644
--- a/tests/ui/parser/item-kw-case-mismatch.stderr
+++ b/tests/ui/parser/item-kw-case-mismatch.stderr
@@ -4,7 +4,7 @@ error: keyword `use` is written in the wrong case
 LL | Use std::ptr::read;
    | ^^^
    |
-help: write it in the correct case (notice the capitalization difference)
+help: write it in the correct case (notice the capitalization)
    |
 LL - Use std::ptr::read;
 LL + use std::ptr::read;
@@ -28,7 +28,7 @@ error: keyword `fn` is written in the wrong case
 LL | async Fn _a() {}
    |       ^^
    |
-help: write it in the correct case (notice the capitalization difference)
+help: write it in the correct case (notice the capitalization)
    |
 LL - async Fn _a() {}
 LL + async fn _a() {}
@@ -40,7 +40,7 @@ error: keyword `fn` is written in the wrong case
 LL | Fn _b() {}
    | ^^
    |
-help: write it in the correct case (notice the capitalization difference)
+help: write it in the correct case (notice the capitalization)
    |
 LL - Fn _b() {}
 LL + fn _b() {}
diff --git a/tests/ui/parser/kw-in-trait-bounds.stderr b/tests/ui/parser/kw-in-trait-bounds.stderr
index 1892d0b6226..5a4adf3e37b 100644
--- a/tests/ui/parser/kw-in-trait-bounds.stderr
+++ b/tests/ui/parser/kw-in-trait-bounds.stderr
@@ -4,7 +4,7 @@ error: expected identifier, found keyword `fn`
 LL | fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn())
    |          ^^
    |
-help: use `Fn` to refer to the trait (notice the capitalization difference)
+help: use `Fn` to refer to the trait (notice the capitalization)
    |
 LL - fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn())
 LL + fn _f<F: Fn(), G>(_: impl fn(), _: &dyn fn())
@@ -16,7 +16,7 @@ error: expected identifier, found keyword `fn`
 LL | fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn())
    |                           ^^
    |
-help: use `Fn` to refer to the trait (notice the capitalization difference)
+help: use `Fn` to refer to the trait (notice the capitalization)
    |
 LL - fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn())
 LL + fn _f<F: fn(), G>(_: impl Fn(), _: &dyn fn())
@@ -28,7 +28,7 @@ error: expected identifier, found keyword `fn`
 LL | fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn())
    |                                         ^^
    |
-help: use `Fn` to refer to the trait (notice the capitalization difference)
+help: use `Fn` to refer to the trait (notice the capitalization)
    |
 LL - fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn())
 LL + fn _f<F: fn(), G>(_: impl fn(), _: &dyn Fn())
@@ -40,7 +40,7 @@ error: expected identifier, found keyword `fn`
 LL | G: fn(),
    |    ^^
    |
-help: use `Fn` to refer to the trait (notice the capitalization difference)
+help: use `Fn` to refer to the trait (notice the capitalization)
    |
 LL - G: fn(),
 LL + G: Fn(),
diff --git a/tests/ui/parser/misspelled-keywords/hrdt.stderr b/tests/ui/parser/misspelled-keywords/hrdt.stderr
index e5fc1a50382..497bd613bf4 100644
--- a/tests/ui/parser/misspelled-keywords/hrdt.stderr
+++ b/tests/ui/parser/misspelled-keywords/hrdt.stderr
@@ -4,7 +4,7 @@ error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found keyword
 LL |     Where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8,
    |           ^^^ expected one of 7 possible tokens
    |
-help: write keyword `where` in lowercase (notice the capitalization difference)
+help: write keyword `where` in lowercase (notice the capitalization)
    |
 LL -     Where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8,
 LL +     where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8,
diff --git a/tests/ui/parser/misspelled-keywords/impl-return.stderr b/tests/ui/parser/misspelled-keywords/impl-return.stderr
index ff5391461a9..d49d962d7e9 100644
--- a/tests/ui/parser/misspelled-keywords/impl-return.stderr
+++ b/tests/ui/parser/misspelled-keywords/impl-return.stderr
@@ -4,7 +4,7 @@ error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found `Display
 LL | fn code() -> Impl Display {}
    |                   ^^^^^^^ expected one of 7 possible tokens
    |
-help: write keyword `impl` in lowercase (notice the capitalization difference)
+help: write keyword `impl` in lowercase (notice the capitalization)
    |
 LL - fn code() -> Impl Display {}
 LL + fn code() -> impl Display {}
diff --git a/tests/ui/parser/misspelled-keywords/static.stderr b/tests/ui/parser/misspelled-keywords/static.stderr
index e559f2be109..0df40bcdc33 100644
--- a/tests/ui/parser/misspelled-keywords/static.stderr
+++ b/tests/ui/parser/misspelled-keywords/static.stderr
@@ -4,7 +4,7 @@ error: expected one of `!` or `::`, found `a`
 LL | Static a = 0;
    |        ^ expected one of `!` or `::`
    |
-help: write keyword `static` in lowercase (notice the capitalization difference)
+help: write keyword `static` in lowercase (notice the capitalization)
    |
 LL - Static a = 0;
 LL + static a = 0;
diff --git a/tests/ui/parser/misspelled-keywords/struct.stderr b/tests/ui/parser/misspelled-keywords/struct.stderr
index edbec3b9456..af8614ef14b 100644
--- a/tests/ui/parser/misspelled-keywords/struct.stderr
+++ b/tests/ui/parser/misspelled-keywords/struct.stderr
@@ -4,7 +4,7 @@ error: expected one of `!` or `::`, found `Foor`
 LL | Struct Foor {
    |        ^^^^ expected one of `!` or `::`
    |
-help: write keyword `struct` in lowercase (notice the capitalization difference)
+help: write keyword `struct` in lowercase (notice the capitalization)
    |
 LL - Struct Foor {
 LL + struct Foor {
diff --git a/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr b/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr
index 4e1fcaf4936..bd809e77a8f 100644
--- a/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr
+++ b/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr
@@ -4,7 +4,7 @@ error: expected identifier, found keyword `fn`
 LL | fn foo(_: impl fn() -> i32) {}
    |                ^^
    |
-help: use `Fn` to refer to the trait (notice the capitalization difference)
+help: use `Fn` to refer to the trait (notice the capitalization)
    |
 LL - fn foo(_: impl fn() -> i32) {}
 LL + fn foo(_: impl Fn() -> i32) {}
@@ -16,7 +16,7 @@ error: expected identifier, found keyword `fn`
 LL | fn foo2<T: fn(i32)>(_: T) {}
    |            ^^
    |
-help: use `Fn` to refer to the trait (notice the capitalization difference)
+help: use `Fn` to refer to the trait (notice the capitalization)
    |
 LL - fn foo2<T: fn(i32)>(_: T) {}
 LL + fn foo2<T: Fn(i32)>(_: T) {}
diff --git a/tests/ui/parser/typod-const-in-const-param-def.stderr b/tests/ui/parser/typod-const-in-const-param-def.stderr
index bf7168a0157..cc1600fe5cb 100644
--- a/tests/ui/parser/typod-const-in-const-param-def.stderr
+++ b/tests/ui/parser/typod-const-in-const-param-def.stderr
@@ -4,7 +4,7 @@ error: `const` keyword was mistyped as `Const`
 LL | pub fn foo<Const N: u8>() {}
    |            ^^^^^
    |
-help: use the `const` keyword (notice the capitalization difference)
+help: use the `const` keyword (notice the capitalization)
    |
 LL - pub fn foo<Const N: u8>() {}
 LL + pub fn foo<const N: u8>() {}
@@ -16,7 +16,7 @@ error: `const` keyword was mistyped as `Const`
 LL | pub fn baz<Const N: u8, T>() {}
    |            ^^^^^
    |
-help: use the `const` keyword (notice the capitalization difference)
+help: use the `const` keyword (notice the capitalization)
    |
 LL - pub fn baz<Const N: u8, T>() {}
 LL + pub fn baz<const N: u8, T>() {}
@@ -28,7 +28,7 @@ error: `const` keyword was mistyped as `Const`
 LL | pub fn qux<T, Const N: u8>() {}
    |               ^^^^^
    |
-help: use the `const` keyword (notice the capitalization difference)
+help: use the `const` keyword (notice the capitalization)
    |
 LL - pub fn qux<T, Const N: u8>() {}
 LL + pub fn qux<T, const N: u8>() {}
@@ -40,7 +40,7 @@ error: `const` keyword was mistyped as `Const`
 LL | pub fn quux<T, Const N: u8, U>() {}
    |                ^^^^^
    |
-help: use the `const` keyword (notice the capitalization difference)
+help: use the `const` keyword (notice the capitalization)
    |
 LL - pub fn quux<T, Const N: u8, U>() {}
 LL + pub fn quux<T, const N: u8, U>() {}
diff --git a/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr b/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr
index 6d6fd983038..47efe69cfc2 100644
--- a/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr
+++ b/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr
@@ -8,7 +8,7 @@ LL |     let x: i32 = MyS::foo;
    |
    = note: expected type `i32`
            found fn item `fn() -> MyS {MyS::foo}`
-help: try referring to the associated const `FOO` instead (notice the capitalization difference)
+help: try referring to the associated const `FOO` instead (notice the capitalization)
    |
 LL -     let x: i32 = MyS::foo;
 LL +     let x: i32 = MyS::FOO;
diff --git a/tests/ui/suggestions/bool_typo_err_suggest.stderr b/tests/ui/suggestions/bool_typo_err_suggest.stderr
index faf799d0fda..d46ce1ad8a9 100644
--- a/tests/ui/suggestions/bool_typo_err_suggest.stderr
+++ b/tests/ui/suggestions/bool_typo_err_suggest.stderr
@@ -16,7 +16,7 @@ error[E0425]: cannot find value `False` in this scope
 LL |     let y = False;
    |             ^^^^^ not found in this scope
    |
-help: you may want to use a bool value instead (notice the capitalization difference)
+help: you may want to use a bool value instead (notice the capitalization)
    |
 LL -     let y = False;
 LL +     let y = false;
diff --git a/tests/ui/suggestions/case-difference-suggestions.rs b/tests/ui/suggestions/case-difference-suggestions.rs
new file mode 100644
index 00000000000..d554b6e9367
--- /dev/null
+++ b/tests/ui/suggestions/case-difference-suggestions.rs
@@ -0,0 +1,57 @@
+fn main() {
+
+    // Simple case difference, no hit
+    let hello = "hello";
+    println!("{}", Hello); //~ ERROR cannot find value `Hello` in this scope
+
+    // Multiple case differences, hit
+    let myVariable = 10;
+    println!("{}", myvariable); //~ ERROR cannot find value `myvariable` in this scope
+
+    // Case difference with special characters, hit
+    let user_name = "john";
+    println!("{}", User_Name); //~ ERROR cannot find value `User_Name` in this scope
+
+    // All uppercase vs all lowercase, hit
+    let FOO = 42;
+    println!("{}", foo); //~ ERROR cannot find value `foo` in this scope
+
+
+    // 0 vs O
+    let FFO0 = 100;
+    println!("{}", FFOO); //~ ERROR cannot find value `FFOO` in this scope
+
+    let l1st = vec![1, 2, 3];
+    println!("{}", list); //~ ERROR cannot find value `list` in this scope
+
+    let S5 = "test";
+    println!("{}", SS); //~ ERROR cannot find value `SS` in this scope
+
+    let aS5 = "test";
+    println!("{}", a55); //~ ERROR cannot find value `a55` in this scope
+
+    let B8 = 8;
+    println!("{}", BB); //~ ERROR cannot find value `BB` in this scope
+
+    let g9 = 9;
+    println!("{}", gg); //~ ERROR cannot find value `gg` in this scope
+
+    let o1d = "old";
+    println!("{}", old); //~ ERROR cannot find value `old` in this scope
+
+    let new1 = "new";
+    println!("{}", newl); //~ ERROR cannot find value `newl` in this scope
+
+    let apple = "apple";
+    println!("{}", app1e); //~ ERROR cannot find value `app1e` in this scope
+
+    let a = 1;
+    println!("{}", A); //~ ERROR cannot find value `A` in this scope
+
+    let worldlu = "world";
+    println!("{}", world1U); //~ ERROR cannot find value `world1U` in this scope
+
+    let myV4rlable = 42;
+    println!("{}", myv4r1able); //~ ERROR cannot find value `myv4r1able` in this scope
+
+}
diff --git a/tests/ui/suggestions/case-difference-suggestions.stderr b/tests/ui/suggestions/case-difference-suggestions.stderr
new file mode 100644
index 00000000000..c3d2410a6eb
--- /dev/null
+++ b/tests/ui/suggestions/case-difference-suggestions.stderr
@@ -0,0 +1,99 @@
+error[E0425]: cannot find value `Hello` in this scope
+  --> $DIR/case-difference-suggestions.rs:5:20
+   |
+LL |     println!("{}", Hello);
+   |                    ^^^^^ help: a local variable with a similar name exists: `hello`
+
+error[E0425]: cannot find value `myvariable` in this scope
+  --> $DIR/case-difference-suggestions.rs:9:20
+   |
+LL |     println!("{}", myvariable);
+   |                    ^^^^^^^^^^ help: a local variable with a similar name exists (notice the capitalization): `myVariable`
+
+error[E0425]: cannot find value `User_Name` in this scope
+  --> $DIR/case-difference-suggestions.rs:13:20
+   |
+LL |     println!("{}", User_Name);
+   |                    ^^^^^^^^^ help: a local variable with a similar name exists: `user_name`
+
+error[E0425]: cannot find value `foo` in this scope
+  --> $DIR/case-difference-suggestions.rs:17:20
+   |
+LL |     println!("{}", foo);
+   |                    ^^^ help: a local variable with a similar name exists (notice the capitalization): `FOO`
+
+error[E0425]: cannot find value `FFOO` in this scope
+  --> $DIR/case-difference-suggestions.rs:22:20
+   |
+LL |     println!("{}", FFOO);
+   |                    ^^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `FFO0`
+
+error[E0425]: cannot find value `list` in this scope
+  --> $DIR/case-difference-suggestions.rs:25:20
+   |
+LL |     println!("{}", list);
+   |                    ^^^^ help: a local variable with a similar name exists: `l1st`
+
+error[E0425]: cannot find value `SS` in this scope
+  --> $DIR/case-difference-suggestions.rs:28:20
+   |
+LL |     println!("{}", SS);
+   |                    ^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `S5`
+
+error[E0425]: cannot find value `a55` in this scope
+  --> $DIR/case-difference-suggestions.rs:31:20
+   |
+LL |     println!("{}", a55);
+   |                    ^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `aS5`
+
+error[E0425]: cannot find value `BB` in this scope
+  --> $DIR/case-difference-suggestions.rs:34:20
+   |
+LL |     println!("{}", BB);
+   |                    ^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `B8`
+
+error[E0425]: cannot find value `gg` in this scope
+  --> $DIR/case-difference-suggestions.rs:37:20
+   |
+LL |     println!("{}", gg);
+   |                    ^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `g9`
+
+error[E0425]: cannot find value `old` in this scope
+  --> $DIR/case-difference-suggestions.rs:40:20
+   |
+LL |     println!("{}", old);
+   |                    ^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `o1d`
+
+error[E0425]: cannot find value `newl` in this scope
+  --> $DIR/case-difference-suggestions.rs:43:20
+   |
+LL |     println!("{}", newl);
+   |                    ^^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `new1`
+
+error[E0425]: cannot find value `app1e` in this scope
+  --> $DIR/case-difference-suggestions.rs:46:20
+   |
+LL |     println!("{}", app1e);
+   |                    ^^^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `apple`
+
+error[E0425]: cannot find value `A` in this scope
+  --> $DIR/case-difference-suggestions.rs:49:20
+   |
+LL |     println!("{}", A);
+   |                    ^ help: a local variable with a similar name exists: `a`
+
+error[E0425]: cannot find value `world1U` in this scope
+  --> $DIR/case-difference-suggestions.rs:52:20
+   |
+LL |     println!("{}", world1U);
+   |                    ^^^^^^^ help: a local variable with a similar name exists (notice the capitalization and digit/letter confusion): `worldlu`
+
+error[E0425]: cannot find value `myv4r1able` in this scope
+  --> $DIR/case-difference-suggestions.rs:55:20
+   |
+LL |     println!("{}", myv4r1able);
+   |                    ^^^^^^^^^^ help: a local variable with a similar name exists (notice the capitalization and digit/letter confusion): `myV4rlable`
+
+error: aborting due to 16 previous errors
+
+For more information about this error, try `rustc --explain E0425`.
diff --git a/tests/ui/suggestions/incorrect-variant-literal.svg b/tests/ui/suggestions/incorrect-variant-literal.svg
index 279fd30f216..2cab1f4b60f 100644
--- a/tests/ui/suggestions/incorrect-variant-literal.svg
+++ b/tests/ui/suggestions/incorrect-variant-literal.svg
@@ -455,7 +455,7 @@
 </tspan>
     <tspan x="10px" y="3916px"><tspan>   </tspan><tspan class="fg-ansi256-012 bold">|</tspan>
 </tspan>
-    <tspan x="10px" y="3934px"><tspan class="fg-ansi256-014 bold">help</tspan><tspan>: there is a variant with a similar name (notice the capitalization difference)</tspan>
+    <tspan x="10px" y="3934px"><tspan class="fg-ansi256-014 bold">help</tspan><tspan>: there is a variant with a similar name (notice the capitalization)</tspan>
 </tspan>
     <tspan x="10px" y="3952px"><tspan>   </tspan><tspan class="fg-ansi256-012 bold">|</tspan>
 </tspan>
diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.next.stderr b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.next.stderr
new file mode 100644
index 00000000000..141a07b4be7
--- /dev/null
+++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.next.stderr
@@ -0,0 +1,19 @@
+error[E0283]: type annotations needed: cannot satisfy `dyn D<&(), &()>: B<&()>`
+  --> $DIR/ambiguity-due-to-uniquification-1.rs:15:31
+   |
+LL |     (&() as &dyn D<&(), &()>).f()
+   |                               ^
+   |
+   = note: cannot satisfy `dyn D<&(), &()>: B<&()>`
+   = help: the trait `B<C>` is implemented for `()`
+note: required by a bound in `D::f`
+  --> $DIR/ambiguity-due-to-uniquification-1.rs:10:16
+   |
+LL | trait D<C, E>: B<C> + B<E> {
+   |                ^^^^ required by this bound in `D::f`
+LL |     fn f(&self) {}
+   |        - required by a bound in this associated function
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0283`.
diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.rs b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.rs
new file mode 100644
index 00000000000..cfdf74046fb
--- /dev/null
+++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-1.rs
@@ -0,0 +1,17 @@
+//@ revisions: current next
+//@[next] compile-flags: -Znext-solver
+//@ ignore-compare-mode-next-solver (explicit revisions)
+//@[current] check-pass
+
+// Regression test for #139409 and trait-system-refactor-initiative#27.
+
+trait B<C> {}
+impl<C> B<C> for () {}
+trait D<C, E>: B<C> + B<E> {
+    fn f(&self) {}
+}
+impl<C, E> D<C, E> for () {}
+fn main() {
+    (&() as &dyn D<&(), &()>).f()
+    //[next]~^ ERROR type annotations needed: cannot satisfy `dyn D<&(), &()>: B<&()>`
+}
diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr
new file mode 100644
index 00000000000..3b478889996
--- /dev/null
+++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr
@@ -0,0 +1,17 @@
+error[E0283]: type annotations needed: cannot satisfy `impl Trait<'x> + Trait<'y>: Trait<'y>`
+  --> $DIR/ambiguity-due-to-uniquification-2.rs:16:23
+   |
+LL |     impls_trait::<'y, _>(foo::<'x, 'y>());
+   |                       ^
+   |
+   = note: cannot satisfy `impl Trait<'x> + Trait<'y>: Trait<'y>`
+   = help: the trait `Trait<'t>` is implemented for `()`
+note: required by a bound in `impls_trait`
+  --> $DIR/ambiguity-due-to-uniquification-2.rs:13:23
+   |
+LL | fn impls_trait<'x, T: Trait<'x>>(_: T) {}
+   |                       ^^^^^^^^^ required by this bound in `impls_trait`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0283`.
diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs
new file mode 100644
index 00000000000..2a9a8b80cc0
--- /dev/null
+++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs
@@ -0,0 +1,20 @@
+//@ revisions: current next
+//@[next] compile-flags: -Znext-solver
+//@ ignore-compare-mode-next-solver (explicit revisions)
+//@[current] check-pass
+
+// Regression test from trait-system-refactor-initiative#27.
+
+trait Trait<'t> {}
+impl<'t> Trait<'t> for () {}
+
+fn foo<'x, 'y>() -> impl Trait<'x> + Trait<'y> {}
+
+fn impls_trait<'x, T: Trait<'x>>(_: T) {}
+
+fn bar<'x, 'y>() {
+    impls_trait::<'y, _>(foo::<'x, 'y>());
+    //[next]~^ ERROR type annotations needed: cannot satisfy `impl Trait<'x> + Trait<'y>: Trait<'y>`
+}
+
+fn main() {}
diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr
new file mode 100644
index 00000000000..e25f892b365
--- /dev/null
+++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr
@@ -0,0 +1,19 @@
+error[E0283]: type annotations needed: cannot satisfy `(dyn Object<&(), &()> + 'static): Trait<&()>`
+  --> $DIR/ambiguity-due-to-uniquification-3.rs:28:17
+   |
+LL |     impls_trait(obj, t);
+   |     ----------- ^^^
+   |     |
+   |     required by a bound introduced by this call
+   |
+   = note: cannot satisfy `(dyn Object<&(), &()> + 'static): Trait<&()>`
+   = help: the trait `Trait<T>` is implemented for `()`
+note: required by a bound in `impls_trait`
+  --> $DIR/ambiguity-due-to-uniquification-3.rs:24:19
+   |
+LL | fn impls_trait<T: Trait<U>, U>(_: Inv<T>, _: Inv<U>) {}
+   |                   ^^^^^^^^ required by this bound in `impls_trait`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0283`.
diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.rs b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.rs
new file mode 100644
index 00000000000..6dcd9d5bdf4
--- /dev/null
+++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.rs
@@ -0,0 +1,33 @@
+//@ revisions: current next
+//@[next] compile-flags: -Znext-solver
+//@ ignore-compare-mode-next-solver (explicit revisions)
+//@[current] check-pass
+
+// Regression test from trait-system-refactor-initiative#27.
+//
+// Unlike in the previous two tests, `dyn Object<?x, ?y>: Trait<?x>` relies
+// on structural identity of type inference variables. This inference variable
+// gets constrained to a type containing a region later on. To prevent this
+// from causing an ICE during MIR borrowck, we stash goals which depend on
+// inference variables and then reprove them at the end of HIR typeck.
+
+#![feature(rustc_attrs)]
+#![rustc_no_implicit_bounds]
+trait Trait<T> {}
+impl<T> Trait<T> for () {}
+
+trait Object<T, U>: Trait<T> + Trait<U> {}
+
+#[derive(Clone, Copy)]
+struct Inv<T>(*mut T);
+fn foo<T: Sized, U: Sized>() -> (Inv<dyn Object<T, U>>, Inv<T>) { todo!() }
+fn impls_trait<T: Trait<U>, U>(_: Inv<T>, _: Inv<U>) {}
+
+fn bar() {
+    let (obj, t) = foo();
+    impls_trait(obj, t);
+    //[next]~^ ERROR type annotations needed
+    let _: Inv<dyn Object<&(), &()>> = obj;
+}
+
+fn main() {}