Auto merge of #118996 - matthiaskrgr:rollup-n6x2lc7, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #117824 (Stabilize `ptr::{from_ref, from_mut}`)
 - #118234 (Stabilize `type_name_of_val`)
 - #118944 (Move type relations into submodule `relate` in rustc_infer, and notify when it has changed)
 - #118977 (Simplify `src-script.js` code)
 - #118985 (Remove `@JohnTitor` from diagnostics pings)
 - #118986 (Simplify JS code a little bit)
 - #118988 (rustdoc: add regression test for JS data file loading)

r? `@ghost`
`@rustbot` modify labels: rollup

27 files changed, 200 insertions, 183 deletions

diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs
index e8a8808428c..3de269da22d 100644
--- a/compiler/rustc_infer/src/infer/mod.rs
+++ b/compiler/rustc_infer/src/infer/mod.rs
@@ -5,7 +5,7 @@ pub use self::BoundRegionConversionTime::*;
 pub use self::RegionVariableOrigin::*;
 pub use self::SubregionOrigin::*;
 pub use self::ValuePairs::*;
-pub use combine::ObligationEmittingRelation;
+pub use relate::combine::ObligationEmittingRelation;
 use rustc_data_structures::captures::Captures;
 use rustc_data_structures::undo_log::UndoLogs;
 use rustc_middle::infer::unify_key::{ConstVidKey, EffectVidKey};
@@ -43,7 +43,6 @@ use rustc_span::{Span, DUMMY_SP};
 use std::cell::{Cell, RefCell};
 use std::fmt;
 
-use self::combine::CombineFields;
 use self::error_reporting::TypeErrCtxt;
 use self::free_regions::RegionRelations;
 use self::lexical_region_resolve::LexicalRegionResolutions;
@@ -51,29 +50,23 @@ use self::region_constraints::{GenericKind, VarInfos, VerifyBound};
 use self::region_constraints::{
     RegionConstraintCollector, RegionConstraintStorage, RegionSnapshot,
 };
+pub use self::relate::combine::CombineFields;
+pub use self::relate::nll as nll_relate;
 use self::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
 
 pub mod at;
 pub mod canonical;
-mod combine;
-mod equate;
 pub mod error_reporting;
 pub mod free_regions;
 mod freshen;
 mod fudge;
-mod generalize;
-mod glb;
-mod higher_ranked;
-pub mod lattice;
 mod lexical_region_resolve;
-mod lub;
-pub mod nll_relate;
 pub mod opaque_types;
 pub mod outlives;
 mod projection;
 pub mod region_constraints;
+mod relate;
 pub mod resolve;
-mod sub;
 pub mod type_variable;
 mod undo_log;
 
diff --git a/compiler/rustc_infer/src/infer/combine.rs b/compiler/rustc_infer/src/infer/relate/combine.rs
index fe58fc7122c..043a916679e 100644
--- a/compiler/rustc_infer/src/infer/combine.rs
+++ b/compiler/rustc_infer/src/infer/relate/combine.rs
@@ -3,7 +3,7 @@
 //! combining two instances of various things and yielding a new instance.
 //! These combiner methods always yield a `Result<T>`. To relate two
 //! types, you can use `infcx.at(cause, param_env)` which then allows
-//! you to use the relevant methods of [At](super::at::At).
+//! you to use the relevant methods of [At](crate::infer::at::At).
 //!
 //! Combiners mostly do their specific behavior and then hand off the
 //! bulk of the work to [InferCtxt::super_combine_tys] and
@@ -23,11 +23,11 @@
 //! this should be correctly updated.
 
 use super::equate::Equate;
+use super::generalize::{self, CombineDelegate, Generalization};
 use super::glb::Glb;
 use super::lub::Lub;
 use super::sub::Sub;
-use super::{DefineOpaqueTypes, InferCtxt, TypeTrace};
-use crate::infer::generalize::{self, CombineDelegate, Generalization};
+use crate::infer::{DefineOpaqueTypes, InferCtxt, TypeTrace};
 use crate::traits::{Obligation, PredicateObligations};
 use rustc_middle::infer::canonical::OriginalQueryValues;
 use rustc_middle::infer::unify_key::{ConstVarValue, ConstVariableValue, EffectVarValue};
diff --git a/compiler/rustc_infer/src/infer/equate.rs b/compiler/rustc_infer/src/infer/relate/equate.rs
index 5d929394eb0..9943c638a91 100644
--- a/compiler/rustc_infer/src/infer/equate.rs
+++ b/compiler/rustc_infer/src/infer/relate/equate.rs
@@ -1,8 +1,6 @@
-use crate::infer::DefineOpaqueTypes;
-use crate::traits::PredicateObligations;
-
 use super::combine::{CombineFields, ObligationEmittingRelation};
-use super::Subtype;
+use crate::infer::{DefineOpaqueTypes, SubregionOrigin};
+use crate::traits::PredicateObligations;
 
 use rustc_middle::ty::relate::{self, Relate, RelateResult, TypeRelation};
 use rustc_middle::ty::GenericArgsRef;
@@ -133,7 +131,7 @@ impl<'tcx> TypeRelation<'tcx> for Equate<'_, '_, 'tcx> {
         b: ty::Region<'tcx>,
     ) -> RelateResult<'tcx, ty::Region<'tcx>> {
         debug!("{}.regions({:?}, {:?})", self.tag(), a, b);
-        let origin = Subtype(Box::new(self.fields.trace.clone()));
+        let origin = SubregionOrigin::Subtype(Box::new(self.fields.trace.clone()));
         self.fields
             .infcx
             .inner
diff --git a/compiler/rustc_infer/src/infer/generalize.rs b/compiler/rustc_infer/src/infer/relate/generalize.rs
index 383f3bdbe23..66f7b08ee12 100644
--- a/compiler/rustc_infer/src/infer/generalize.rs
+++ b/compiler/rustc_infer/src/infer/relate/generalize.rs
@@ -16,7 +16,7 @@ use crate::infer::{InferCtxt, RegionVariableOrigin};
 /// Attempts to generalize `term` for the type variable `for_vid`.
 /// This checks for cycles -- that is, whether the type `term`
 /// references `for_vid`.
-pub(super) fn generalize<'tcx, D: GeneralizerDelegate<'tcx>, T: Into<Term<'tcx>> + Relate<'tcx>>(
+pub fn generalize<'tcx, D: GeneralizerDelegate<'tcx>, T: Into<Term<'tcx>> + Relate<'tcx>>(
     infcx: &InferCtxt<'tcx>,
     delegate: &mut D,
     term: T,
@@ -54,7 +54,7 @@ pub(super) fn generalize<'tcx, D: GeneralizerDelegate<'tcx>, T: Into<Term<'tcx>>
 
 /// Abstracts the handling of region vars between HIR and MIR/NLL typechecking
 /// in the generalizer code.
-pub(super) trait GeneralizerDelegate<'tcx> {
+pub trait GeneralizerDelegate<'tcx> {
     fn param_env(&self) -> ty::ParamEnv<'tcx>;
 
     fn forbid_inference_vars() -> bool;
@@ -64,7 +64,7 @@ pub(super) trait GeneralizerDelegate<'tcx> {
     fn generalize_region(&mut self, universe: ty::UniverseIndex) -> ty::Region<'tcx>;
 }
 
-pub(super) struct CombineDelegate<'cx, 'tcx> {
+pub struct CombineDelegate<'cx, 'tcx> {
     pub infcx: &'cx InferCtxt<'tcx>,
     pub param_env: ty::ParamEnv<'tcx>,
     pub span: Span,
@@ -515,7 +515,7 @@ where
 /// not only the generalized type, but also a bool flag
 /// indicating whether further WF checks are needed.
 #[derive(Debug)]
-pub(super) struct Generalization<T> {
+pub struct Generalization<T> {
     /// When generalizing `<?0 as Trait>::Assoc` or
     /// `<T as Bar<<?0 as Foo>::Assoc>>::Assoc`
     /// for `?0` generalization returns an inference
@@ -524,7 +524,7 @@ pub(super) struct Generalization<T> {
     /// This has to be handled wotj care as it can
     /// otherwise very easily result in infinite
     /// recursion.
-    pub(super) value_may_be_infer: T,
+    pub value_may_be_infer: T,
 
     /// If true, then the generalized type may not be well-formed,
     /// even if the source type is well-formed, so we should add an
@@ -551,5 +551,5 @@ pub(super) struct Generalization<T> {
     /// will force the calling code to check that `WF(Foo<?C, ?D>)`
     /// holds, which in turn implies that `?C::Item == ?D`. So once
     /// `?C` is constrained, that should suffice to restrict `?D`.
-    pub(super) needs_wf: bool,
+    pub needs_wf: bool,
 }
diff --git a/compiler/rustc_infer/src/infer/glb.rs b/compiler/rustc_infer/src/infer/relate/glb.rs
index 2f659d9a665..6a3413879c4 100644
--- a/compiler/rustc_infer/src/infer/glb.rs
+++ b/compiler/rustc_infer/src/infer/relate/glb.rs
@@ -1,13 +1,12 @@
 //! Greatest lower bound. See [`lattice`].
 
+use rustc_middle::ty::relate::{Relate, RelateResult, TypeRelation};
+use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
+
 use super::combine::{CombineFields, ObligationEmittingRelation};
 use super::lattice::{self, LatticeDir};
-use super::Subtype;
-use super::{DefineOpaqueTypes, InferCtxt};
-
+use crate::infer::{DefineOpaqueTypes, InferCtxt, SubregionOrigin};
 use crate::traits::{ObligationCause, PredicateObligations};
-use rustc_middle::ty::relate::{Relate, RelateResult, TypeRelation};
-use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
 
 /// "Greatest lower bound" (common subtype)
 pub struct Glb<'combine, 'infcx, 'tcx> {
@@ -68,7 +67,7 @@ impl<'tcx> TypeRelation<'tcx> for Glb<'_, '_, 'tcx> {
     ) -> RelateResult<'tcx, ty::Region<'tcx>> {
         debug!("{}.regions({:?}, {:?})", self.tag(), a, b);
 
-        let origin = Subtype(Box::new(self.fields.trace.clone()));
+        let origin = SubregionOrigin::Subtype(Box::new(self.fields.trace.clone()));
         // GLB(&'static u8, &'a u8) == &RegionLUB('static, 'a) u8 == &'static u8
         Ok(self.fields.infcx.inner.borrow_mut().unwrap_region_constraints().lub_regions(
             self.tcx(),
diff --git a/compiler/rustc_infer/src/infer/higher_ranked/mod.rs b/compiler/rustc_infer/src/infer/relate/higher_ranked.rs
index 510b1797d3c..440df8c8936 100644
--- a/compiler/rustc_infer/src/infer/higher_ranked/mod.rs
+++ b/compiler/rustc_infer/src/infer/relate/higher_ranked.rs
@@ -2,8 +2,8 @@
 //! the end of the file for details.
 
 use super::combine::CombineFields;
-use super::{HigherRankedType, InferCtxt};
 use crate::infer::CombinedSnapshot;
+use crate::infer::{HigherRankedType, InferCtxt};
 use rustc_middle::ty::fold::FnMutDelegate;
 use rustc_middle::ty::relate::{Relate, RelateResult, TypeRelation};
 use rustc_middle::ty::{self, Binder, Ty, TyCtxt, TypeFoldable};
diff --git a/compiler/rustc_infer/src/infer/lattice.rs b/compiler/rustc_infer/src/infer/relate/lattice.rs
index 9ef35429fe3..744e2dfa380 100644
--- a/compiler/rustc_infer/src/infer/lattice.rs
+++ b/compiler/rustc_infer/src/infer/relate/lattice.rs
@@ -18,10 +18,10 @@
 //! [lattices]: https://en.wikipedia.org/wiki/Lattice_(order)
 
 use super::combine::ObligationEmittingRelation;
-use super::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
-use super::{DefineOpaqueTypes, InferCtxt};
-
+use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
+use crate::infer::{DefineOpaqueTypes, InferCtxt};
 use crate::traits::ObligationCause;
+
 use rustc_middle::ty::relate::RelateResult;
 use rustc_middle::ty::TyVar;
 use rustc_middle::ty::{self, Ty};
diff --git a/compiler/rustc_infer/src/infer/lub.rs b/compiler/rustc_infer/src/infer/relate/lub.rs
index e41ec7e6c01..41cd98ed0cf 100644
--- a/compiler/rustc_infer/src/infer/lub.rs
+++ b/compiler/rustc_infer/src/infer/relate/lub.rs
@@ -2,10 +2,9 @@
 
 use super::combine::{CombineFields, ObligationEmittingRelation};
 use super::lattice::{self, LatticeDir};
-use super::Subtype;
-use super::{DefineOpaqueTypes, InferCtxt};
-
+use crate::infer::{DefineOpaqueTypes, InferCtxt, SubregionOrigin};
 use crate::traits::{ObligationCause, PredicateObligations};
+
 use rustc_middle::ty::relate::{Relate, RelateResult, TypeRelation};
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
 
@@ -68,7 +67,7 @@ impl<'tcx> TypeRelation<'tcx> for Lub<'_, '_, 'tcx> {
     ) -> RelateResult<'tcx, ty::Region<'tcx>> {
         debug!("{}.regions({:?}, {:?})", self.tag(), a, b);
 
-        let origin = Subtype(Box::new(self.fields.trace.clone()));
+        let origin = SubregionOrigin::Subtype(Box::new(self.fields.trace.clone()));
         // LUB(&'static u8, &'a u8) == &RegionGLB('static, 'a) u8 == &'a u8
         Ok(self.fields.infcx.inner.borrow_mut().unwrap_region_constraints().glb_regions(
             self.tcx(),
diff --git a/compiler/rustc_infer/src/infer/relate/mod.rs b/compiler/rustc_infer/src/infer/relate/mod.rs
new file mode 100644
index 00000000000..f688c2b74a6
--- /dev/null
+++ b/compiler/rustc_infer/src/infer/relate/mod.rs
@@ -0,0 +1,12 @@
+//! This module contains the definitions of most `TypeRelation`s in the type system
+//! (except for some relations used for diagnostics and heuristics in the compiler).
+
+pub(super) mod combine;
+mod equate;
+pub(super) mod generalize;
+mod glb;
+mod higher_ranked;
+mod lattice;
+mod lub;
+pub mod nll;
+mod sub;
diff --git a/compiler/rustc_infer/src/infer/nll_relate/mod.rs b/compiler/rustc_infer/src/infer/relate/nll.rs
index ab3c976a351..afc2a8b2f62 100644
--- a/compiler/rustc_infer/src/infer/nll_relate/mod.rs
+++ b/compiler/rustc_infer/src/infer/relate/nll.rs
@@ -30,8 +30,8 @@ use rustc_middle::ty::{self, InferConst, Ty, TyCtxt};
 use rustc_span::{Span, Symbol};
 use std::fmt::Debug;
 
-use crate::infer::combine::ObligationEmittingRelation;
-use crate::infer::generalize::{self, Generalization};
+use super::combine::ObligationEmittingRelation;
+use super::generalize::{self, Generalization};
 use crate::infer::InferCtxt;
 use crate::infer::{TypeVariableOrigin, TypeVariableOriginKind};
 use crate::traits::{Obligation, PredicateObligations};
diff --git a/compiler/rustc_infer/src/infer/sub.rs b/compiler/rustc_infer/src/infer/relate/sub.rs
index 0c3bb633b53..5a623e48c93 100644
--- a/compiler/rustc_infer/src/infer/sub.rs
+++ b/compiler/rustc_infer/src/infer/relate/sub.rs
@@ -1,7 +1,7 @@
 use super::combine::CombineFields;
-use super::{DefineOpaqueTypes, ObligationEmittingRelation, SubregionOrigin};
-
+use crate::infer::{DefineOpaqueTypes, ObligationEmittingRelation, SubregionOrigin};
 use crate::traits::{Obligation, PredicateObligations};
+
 use rustc_middle::ty::relate::{Cause, Relate, RelateResult, TypeRelation};
 use rustc_middle::ty::visit::TypeVisitableExt;
 use rustc_middle::ty::TyVar;
diff --git a/library/core/src/any.rs b/library/core/src/any.rs
index 22777fb078a..c82984d5c6b 100644
--- a/library/core/src/any.rs
+++ b/library/core/src/any.rs
@@ -695,44 +695,41 @@ pub const fn type_name<T: ?Sized>() -> &'static str {
     intrinsics::type_name::<T>()
 }
 
-/// Returns the name of the type of the pointed-to value as a string slice.
+/// Returns the type name of the pointed-to value as a string slice.
+///
 /// This is the same as `type_name::<T>()`, but can be used where the type of a
 /// variable is not easily available.
 ///
 /// # Note
 ///
-/// This is intended for diagnostic use. The exact contents and format of the
-/// string are not specified, other than being a best-effort description of the
-/// type. For example, `type_name_of_val::<Option<String>>(None)` could return
-/// `"Option<String>"` or `"std::option::Option<std::string::String>"`, but not
-/// `"foobar"`. In addition, the output may change between versions of the
-/// compiler.
-///
-/// This function does not resolve trait objects,
-/// meaning that `type_name_of_val(&7u32 as &dyn Debug)`
-/// may return `"dyn Debug"`, but not `"u32"`.
+/// Like [`type_name`], this is intended for diagnostic use and the exact output is not
+/// guaranteed. It provides a best-effort description, but the output may change between
+/// versions of the compiler.
 ///
-/// The type name should not be considered a unique identifier of a type;
-/// multiple types may share the same type name.
+/// In short: use this for debugging, avoid using the output to affect program behavior. More
+/// information is available at [`type_name`].
 ///
-/// The current implementation uses the same infrastructure as compiler
-/// diagnostics and debuginfo, but this is not guaranteed.
+/// Additionally, this function does not resolve trait objects. This means that
+/// `type_name_of_val(&7u32 as &dyn Debug)` may return `"dyn Debug"`, but will not return `"u32"`
+/// at this time.
 ///
 /// # Examples
 ///
 /// Prints the default integer and float types.
 ///
 /// ```rust
-/// #![feature(type_name_of_val)]
 /// use std::any::type_name_of_val;
 ///
-/// let x = 1;
-/// println!("{}", type_name_of_val(&x));
-/// let y = 1.0;
-/// println!("{}", type_name_of_val(&y));
+/// let s = "foo";
+/// let x: i32 = 1;
+/// let y: f32 = 1.0;
+///
+/// assert!(type_name_of_val(&s).contains("str"));
+/// assert!(type_name_of_val(&x).contains("i32"));
+/// assert!(type_name_of_val(&y).contains("f32"));
 /// ```
 #[must_use]
-#[unstable(feature = "type_name_of_val", issue = "66359")]
+#[stable(feature = "type_name_of_val", since = "CURRENT_RUSTC_VERSION")]
 #[rustc_const_unstable(feature = "const_type_name", issue = "63084")]
 pub const fn type_name_of_val<T: ?Sized>(_val: &T) -> &'static str {
     type_name::<T>()
diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs
index d6603681a0b..eed793186b9 100644
--- a/library/core/src/ptr/mod.rs
+++ b/library/core/src/ptr/mod.rs
@@ -720,7 +720,8 @@ where
 /// type or mutability, in particular if the code is refactored.
 #[inline(always)]
 #[must_use]
-#[unstable(feature = "ptr_from_ref", issue = "106116")]
+#[stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")]
 #[rustc_never_returns_null_ptr]
 #[rustc_diagnostic_item = "ptr_from_ref"]
 pub const fn from_ref<T: ?Sized>(r: &T) -> *const T {
@@ -733,7 +734,9 @@ pub const fn from_ref<T: ?Sized>(r: &T) -> *const T {
 /// type or mutability, in particular if the code is refactored.
 #[inline(always)]
 #[must_use]
-#[unstable(feature = "ptr_from_ref", issue = "106116")]
+#[stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_allow_const_fn_unstable(const_mut_refs)]
 #[rustc_never_returns_null_ptr]
 pub const fn from_mut<T: ?Sized>(r: &mut T) -> *mut T {
     r
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index d08f0b1c9d0..76081833e05 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -338,7 +338,6 @@
 #![feature(portable_simd)]
 #![feature(prelude_2024)]
 #![feature(ptr_as_uninit)]
-#![feature(ptr_from_ref)]
 #![feature(raw_os_nonzero)]
 #![feature(round_ties_even)]
 #![feature(slice_internals)]
diff --git a/src/librustdoc/html/render/write_shared.rs b/src/librustdoc/html/render/write_shared.rs
index c4a6e920031..6408e97df50 100644
--- a/src/librustdoc/html/render/write_shared.rs
+++ b/src/librustdoc/html/render/write_shared.rs
@@ -328,8 +328,8 @@ pub(super) fn write_shared(
         v.push_str(
             r#"\
 ]'));
-if (typeof window !== 'undefined' && window.initSearch) {window.initSearch(searchIndex)};
-if (typeof exports !== 'undefined') {exports.searchIndex = searchIndex};
+if (typeof exports !== 'undefined') exports.searchIndex = searchIndex;
+else if (window.initSearch) window.initSearch(searchIndex);
 "#,
         );
         Ok(v.into_bytes())
diff --git a/src/librustdoc/html/static/js/src-script.js b/src/librustdoc/html/static/js/src-script.js
index bbb0527a833..fc1d2d37845 100644
--- a/src/librustdoc/html/static/js/src-script.js
+++ b/src/librustdoc/html/static/js/src-script.js
@@ -146,12 +146,8 @@ function createSrcSidebar() {
     }
 }
 
-const lineNumbersRegex = /^#?(\d+)(?:-(\d+))?$/;
-
-function highlightSrcLines(match) {
-    if (typeof match === "undefined") {
-        match = window.location.hash.match(lineNumbersRegex);
-    }
+function highlightSrcLines() {
+    const match = window.location.hash.match(/^#?(\d+)(?:-(\d+))?$/);
     if (!match) {
         return;
     }
@@ -233,12 +229,7 @@ const handleSrcHighlight = (function() {
     };
 }());
 
-window.addEventListener("hashchange", () => {
-    const match = window.location.hash.match(lineNumbersRegex);
-    if (match) {
-        return highlightSrcLines(match);
-    }
-});
+window.addEventListener("hashchange", highlightSrcLines);
 
 onEachLazy(document.getElementsByClassName("src-line-numbers"), el => {
     el.addEventListener("click", handleSrcHighlight);
diff --git a/tests/rustdoc-gui/globals.goml b/tests/rustdoc-gui/globals.goml
new file mode 100644
index 00000000000..53f96ff086e
--- /dev/null
+++ b/tests/rustdoc-gui/globals.goml
@@ -0,0 +1,24 @@
+// Make sure search stores its data in `window`
+// It needs to use a global to avoid racing on search-index.js and search.js
+// https://github.com/rust-lang/rust/pull/118961
+
+// URL query
+go-to: "file://" + |DOC_PATH| + "/test_docs/index.html?search=sa'%3Bda'%3Bds"
+wait-for: "#search-tabs"
+assert-window-property-false: {"searchIndex": null}
+assert-window-property: {"srcIndex": null}
+
+// Form input
+go-to: "file://" + |DOC_PATH| + "/test_docs/index.html"
+write: (".search-input", "Foo")
+press-key: 'Enter'
+wait-for: "#search-tabs"
+assert-window-property-false: {"searchIndex": null}
+assert-window-property: {"srcIndex": null}
+
+// source sidebar
+go-to: "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html"
+click: "#src-sidebar-toggle"
+wait-for: "#src-sidebar details"
+assert-window-property-false: {"srcIndex": null}
+assert-window-property: {"searchIndex": null}
diff --git a/tests/ui/coherence/occurs-check/associated-type.next.stderr b/tests/ui/coherence/occurs-check/associated-type.next.stderr
index 69f541cba05..f64e8b39798 100644
--- a/tests/ui/coherence/occurs-check/associated-type.next.stderr
+++ b/tests/ui/coherence/occurs-check/associated-type.next.stderr
@@ -1,11 +1,11 @@
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!2_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
 error[E0119]: conflicting implementations of trait `Overlap<for<'a> fn(&'a (), ())>` for type `for<'a> fn(&'a (), ())`
   --> $DIR/associated-type.rs:31:1
    |
diff --git a/tests/ui/coherence/occurs-check/associated-type.old.stderr b/tests/ui/coherence/occurs-check/associated-type.old.stderr
index c2c951af0db..8e852ec796e 100644
--- a/tests/ui/coherence/occurs-check/associated-type.old.stderr
+++ b/tests/ui/coherence/occurs-check/associated-type.old.stderr
@@ -1,11 +1,11 @@
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Projection, AliasTy { args: [*const ?1t, RePlaceholder(!3_BoundRegion { var: 0, kind: BrNamed(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), 'a) })], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit) })
 error[E0119]: conflicting implementations of trait `Overlap<for<'a> fn(&'a (), _)>` for type `for<'a> fn(&'a (), _)`
   --> $DIR/associated-type.rs:31:1
    |
diff --git a/tests/ui/hygiene/cross-crate-define-and-use.rs b/tests/ui/hygiene/cross-crate-define-and-use.rs
index 94f1adff626..62b1820235c 100644
--- a/tests/ui/hygiene/cross-crate-define-and-use.rs
+++ b/tests/ui/hygiene/cross-crate-define-and-use.rs
@@ -6,7 +6,6 @@
 // check-pass
 // aux-build:use_by_macro.rs
 
-#![feature(type_name_of_val)]
 extern crate use_by_macro;
 
 use use_by_macro::*;
diff --git a/tests/ui/lint/ptr_null_checks.rs b/tests/ui/lint/ptr_null_checks.rs
index 3028084e962..4925019be1e 100644
--- a/tests/ui/lint/ptr_null_checks.rs
+++ b/tests/ui/lint/ptr_null_checks.rs
@@ -1,7 +1,5 @@
 // check-pass
 
-#![feature(ptr_from_ref)]
-
 use std::ptr;
 
 extern "C" fn c_fn() {}
diff --git a/tests/ui/lint/ptr_null_checks.stderr b/tests/ui/lint/ptr_null_checks.stderr
index 0edc1b86536..70a27790c5b 100644
--- a/tests/ui/lint/ptr_null_checks.stderr
+++ b/tests/ui/lint/ptr_null_checks.stderr
@@ -1,5 +1,5 @@
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:14:8
+  --> $DIR/ptr_null_checks.rs:12:8
    |
 LL |     if (fn_ptr as *mut ()).is_null() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^
@@ -10,7 +10,7 @@ LL |     if (fn_ptr as *mut ()).is_null() {}
    = note: `#[warn(useless_ptr_null_checks)]` on by default
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:16:8
+  --> $DIR/ptr_null_checks.rs:14:8
    |
 LL |     if (fn_ptr as *const u8).is_null() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^^
@@ -20,7 +20,7 @@ LL |     if (fn_ptr as *const u8).is_null() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:18:8
+  --> $DIR/ptr_null_checks.rs:16:8
    |
 LL |     if (fn_ptr as *const ()) == std::ptr::null() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -30,7 +30,7 @@ LL |     if (fn_ptr as *const ()) == std::ptr::null() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:20:8
+  --> $DIR/ptr_null_checks.rs:18:8
    |
 LL |     if (fn_ptr as *mut ()) == std::ptr::null_mut() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -40,7 +40,7 @@ LL |     if (fn_ptr as *mut ()) == std::ptr::null_mut() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:22:8
+  --> $DIR/ptr_null_checks.rs:20:8
    |
 LL |     if (fn_ptr as *const ()) == (0 as *const ()) {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -50,7 +50,7 @@ LL |     if (fn_ptr as *const ()) == (0 as *const ()) {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:24:8
+  --> $DIR/ptr_null_checks.rs:22:8
    |
 LL |     if <*const _>::is_null(fn_ptr as *const ()) {}
    |        ^^^^^^^^^^^^^^^^^^^^------^^^^^^^^^^^^^^
@@ -60,7 +60,7 @@ LL |     if <*const _>::is_null(fn_ptr as *const ()) {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:26:8
+  --> $DIR/ptr_null_checks.rs:24:8
    |
 LL |     if (fn_ptr as *mut fn() as *const fn() as *const ()).is_null() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -70,7 +70,7 @@ LL |     if (fn_ptr as *mut fn() as *const fn() as *const ()).is_null() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:28:8
+  --> $DIR/ptr_null_checks.rs:26:8
    |
 LL |     if (fn_ptr as *mut fn() as *const fn()).cast_mut().is_null() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -80,7 +80,7 @@ LL |     if (fn_ptr as *mut fn() as *const fn()).cast_mut().is_null() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:30:8
+  --> $DIR/ptr_null_checks.rs:28:8
    |
 LL |     if ((fn_ptr as *mut fn()).cast() as *const fn()).cast_mut().is_null() {}
    |        ^^------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -90,7 +90,7 @@ LL |     if ((fn_ptr as *mut fn()).cast() as *const fn()).cast_mut().is_null() {
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:32:8
+  --> $DIR/ptr_null_checks.rs:30:8
    |
 LL |     if (fn_ptr as fn() as *const ()).is_null() {}
    |        ^--------------^^^^^^^^^^^^^^^^^^^^^^^^
@@ -100,7 +100,7 @@ LL |     if (fn_ptr as fn() as *const ()).is_null() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: function pointers are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:34:8
+  --> $DIR/ptr_null_checks.rs:32:8
    |
 LL |     if (c_fn as *const fn()).is_null() {}
    |        ^----^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -110,7 +110,7 @@ LL |     if (c_fn as *const fn()).is_null() {}
    = help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:38:8
+  --> $DIR/ptr_null_checks.rs:36:8
    |
 LL |     if (&mut 8 as *mut i32).is_null() {}
    |        ^------^^^^^^^^^^^^^^^^^^^^^^^
@@ -118,13 +118,13 @@ LL |     if (&mut 8 as *mut i32).is_null() {}
    |         expression has type `&mut i32`
 
 warning: returned pointer of `from_mut` call is never null, so checking it for null will always return false
-  --> $DIR/ptr_null_checks.rs:40:8
+  --> $DIR/ptr_null_checks.rs:38:8
    |
 LL |     if ptr::from_mut(&mut 8).is_null() {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:42:8
+  --> $DIR/ptr_null_checks.rs:40:8
    |
 LL |     if (&8 as *const i32).is_null() {}
    |        ^--^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -132,25 +132,25 @@ LL |     if (&8 as *const i32).is_null() {}
    |         expression has type `&i32`
 
 warning: returned pointer of `from_ref` call is never null, so checking it for null will always return false
-  --> $DIR/ptr_null_checks.rs:44:8
+  --> $DIR/ptr_null_checks.rs:42:8
    |
 LL |     if ptr::from_ref(&8).is_null() {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: returned pointer of `from_ref` call is never null, so checking it for null will always return false
-  --> $DIR/ptr_null_checks.rs:46:8
+  --> $DIR/ptr_null_checks.rs:44:8
    |
 LL |     if ptr::from_ref(&8).cast_mut().is_null() {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: returned pointer of `from_ref` call is never null, so checking it for null will always return false
-  --> $DIR/ptr_null_checks.rs:48:8
+  --> $DIR/ptr_null_checks.rs:46:8
    |
 LL |     if (ptr::from_ref(&8).cast_mut() as *mut i32).is_null() {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:50:8
+  --> $DIR/ptr_null_checks.rs:48:8
    |
 LL |     if (&8 as *const i32) == std::ptr::null() {}
    |        ^--^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -158,7 +158,7 @@ LL |     if (&8 as *const i32) == std::ptr::null() {}
    |         expression has type `&i32`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:53:8
+  --> $DIR/ptr_null_checks.rs:51:8
    |
 LL |     if (ref_num as *const i32) == std::ptr::null() {}
    |        ^-------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -166,7 +166,7 @@ LL |     if (ref_num as *const i32) == std::ptr::null() {}
    |         expression has type `&i32`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:55:8
+  --> $DIR/ptr_null_checks.rs:53:8
    |
 LL |     if (b"\0" as *const u8).is_null() {}
    |        ^-----^^^^^^^^^^^^^^^^^^^^^^^^
@@ -174,7 +174,7 @@ LL |     if (b"\0" as *const u8).is_null() {}
    |         expression has type `&[u8; 1]`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:57:8
+  --> $DIR/ptr_null_checks.rs:55:8
    |
 LL |     if ("aa" as *const str).is_null() {}
    |        ^----^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -182,7 +182,7 @@ LL |     if ("aa" as *const str).is_null() {}
    |         expression has type `&str`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:59:8
+  --> $DIR/ptr_null_checks.rs:57:8
    |
 LL |     if (&[1, 2] as *const i32).is_null() {}
    |        ^-------^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -190,7 +190,7 @@ LL |     if (&[1, 2] as *const i32).is_null() {}
    |         expression has type `&[i32; 2]`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:61:8
+  --> $DIR/ptr_null_checks.rs:59:8
    |
 LL |     if (&mut [1, 2] as *mut i32) == std::ptr::null_mut() {}
    |        ^-----------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -198,7 +198,7 @@ LL |     if (&mut [1, 2] as *mut i32) == std::ptr::null_mut() {}
    |         expression has type `&mut [i32; 2]`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:63:8
+  --> $DIR/ptr_null_checks.rs:61:8
    |
 LL |     if (static_i32() as *const i32).is_null() {}
    |        ^------------^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -206,7 +206,7 @@ LL |     if (static_i32() as *const i32).is_null() {}
    |         expression has type `&i32`
 
 warning: references are not nullable, so checking them for null will always return false
-  --> $DIR/ptr_null_checks.rs:65:8
+  --> $DIR/ptr_null_checks.rs:63:8
    |
 LL |     if (&*{ static_i32() } as *const i32).is_null() {}
    |        ^------------------^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -214,13 +214,13 @@ LL |     if (&*{ static_i32() } as *const i32).is_null() {}
    |         expression has type `&i32`
 
 warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
-  --> $DIR/ptr_null_checks.rs:69:8
+  --> $DIR/ptr_null_checks.rs:67:8
    |
 LL |     if ptr::NonNull::new(&mut 8).unwrap().as_ptr().is_null() {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
-  --> $DIR/ptr_null_checks.rs:71:8
+  --> $DIR/ptr_null_checks.rs:69:8
    |
 LL |     if ptr::NonNull::<u8>::dangling().as_ptr().is_null() {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/lint/reference_casting.rs b/tests/ui/lint/reference_casting.rs
index fe8c6e3ff23..84267c0af03 100644
--- a/tests/ui/lint/reference_casting.rs
+++ b/tests/ui/lint/reference_casting.rs
@@ -1,7 +1,5 @@
 // check-fail
 
-#![feature(ptr_from_ref)]
-
 extern "C" {
     // N.B., mutability can be easily incorrect in FFI calls -- as
     // in C, the default is mutable pointers.
diff --git a/tests/ui/lint/reference_casting.stderr b/tests/ui/lint/reference_casting.stderr
index 2820696508a..374a58d7b7b 100644
--- a/tests/ui/lint/reference_casting.stderr
+++ b/tests/ui/lint/reference_casting.stderr
@@ -1,5 +1,5 @@
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:19:16
+  --> $DIR/reference_casting.rs:17:16
    |
 LL |     let _num = &mut *(num as *const i32 as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -8,7 +8,7 @@ LL |     let _num = &mut *(num as *const i32 as *mut i32);
    = note: `#[deny(invalid_reference_casting)]` on by default
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:21:16
+  --> $DIR/reference_casting.rs:19:16
    |
 LL |     let _num = &mut *(num as *const i32).cast_mut();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -16,7 +16,7 @@ LL |     let _num = &mut *(num as *const i32).cast_mut();
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:23:16
+  --> $DIR/reference_casting.rs:21:16
    |
 LL |     let _num = &mut *std::ptr::from_ref(num).cast_mut();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -24,7 +24,7 @@ LL |     let _num = &mut *std::ptr::from_ref(num).cast_mut();
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:25:16
+  --> $DIR/reference_casting.rs:23:16
    |
 LL |     let _num = &mut *std::ptr::from_ref({ num }).cast_mut();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -32,7 +32,7 @@ LL |     let _num = &mut *std::ptr::from_ref({ num }).cast_mut();
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:27:16
+  --> $DIR/reference_casting.rs:25:16
    |
 LL |     let _num = &mut *{ std::ptr::from_ref(num) }.cast_mut();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -40,7 +40,7 @@ LL |     let _num = &mut *{ std::ptr::from_ref(num) }.cast_mut();
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:29:16
+  --> $DIR/reference_casting.rs:27:16
    |
 LL |     let _num = &mut *(std::ptr::from_ref({ num }) as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -48,7 +48,7 @@ LL |     let _num = &mut *(std::ptr::from_ref({ num }) as *mut i32);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:31:16
+  --> $DIR/reference_casting.rs:29:16
    |
 LL |     let _num = &mut *(num as *const i32).cast::<i32>().cast_mut();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -56,7 +56,7 @@ LL |     let _num = &mut *(num as *const i32).cast::<i32>().cast_mut();
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:33:16
+  --> $DIR/reference_casting.rs:31:16
    |
 LL |     let _num = &mut *(num as *const i32).cast::<i32>().cast_mut().cast_const().cast_mut();
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -64,7 +64,7 @@ LL |     let _num = &mut *(num as *const i32).cast::<i32>().cast_mut().cast_cons
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:35:16
+  --> $DIR/reference_casting.rs:33:16
    |
 LL |     let _num = &mut *(std::ptr::from_ref(static_u8()) as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -72,7 +72,7 @@ LL |     let _num = &mut *(std::ptr::from_ref(static_u8()) as *mut i32);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:37:16
+  --> $DIR/reference_casting.rs:35:16
    |
 LL |     let _num = &mut *std::mem::transmute::<_, *mut i32>(num);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -80,7 +80,7 @@ LL |     let _num = &mut *std::mem::transmute::<_, *mut i32>(num);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:39:16
+  --> $DIR/reference_casting.rs:37:16
    |
 LL |     let _num = &mut *(std::mem::transmute::<_, *mut i32>(num) as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -88,7 +88,7 @@ LL |     let _num = &mut *(std::mem::transmute::<_, *mut i32>(num) as *mut i32);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:41:16
+  --> $DIR/reference_casting.rs:39:16
    |
 LL |       let _num = &mut *std::cell::UnsafeCell::raw_get(
    |  ________________^
@@ -100,7 +100,7 @@ LL | |     );
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:47:16
+  --> $DIR/reference_casting.rs:45:16
    |
 LL |     let deferred = num as *const i32 as *mut i32;
    |                    ----------------------------- casting happend here
@@ -110,7 +110,7 @@ LL |     let _num = &mut *deferred;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:50:16
+  --> $DIR/reference_casting.rs:48:16
    |
 LL |     let deferred = (std::ptr::from_ref(num) as *const i32 as *const i32).cast_mut() as *mut i32;
    |                    ---------------------------------------------------------------------------- casting happend here
@@ -120,7 +120,7 @@ LL |     let _num = &mut *deferred;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:53:16
+  --> $DIR/reference_casting.rs:51:16
    |
 LL |     let deferred = (std::ptr::from_ref(num) as *const i32 as *const i32).cast_mut() as *mut i32;
    |                    ---------------------------------------------------------------------------- casting happend here
@@ -131,7 +131,7 @@ LL |     let _num = &mut *deferred_rebind;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:55:16
+  --> $DIR/reference_casting.rs:53:16
    |
 LL |     let _num = &mut *(num as *const _ as usize as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -139,7 +139,7 @@ LL |     let _num = &mut *(num as *const _ as usize as *mut i32);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:57:16
+  --> $DIR/reference_casting.rs:55:16
    |
 LL |     let _num = &mut *(std::mem::transmute::<_, *mut _>(num as *const i32) as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -147,7 +147,7 @@ LL |     let _num = &mut *(std::mem::transmute::<_, *mut _>(num as *const i32) a
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:64:16
+  --> $DIR/reference_casting.rs:62:16
    |
 LL |     let num = NUM as *const i32 as *mut i32;
    |               ----------------------------- casting happend here
@@ -158,7 +158,7 @@ LL |     let _num = &mut *num;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:68:16
+  --> $DIR/reference_casting.rs:66:16
    |
 LL |     let _num = &mut *(cell as *const _ as *mut i32);
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -167,7 +167,7 @@ LL |     let _num = &mut *(cell as *const _ as *mut i32);
    = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get`
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:72:9
+  --> $DIR/reference_casting.rs:70:9
    |
 LL |         &mut *((this as *const _) as *mut _)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -175,7 +175,7 @@ LL |         &mut *((this as *const _) as *mut _)
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:77:18
+  --> $DIR/reference_casting.rs:75:18
    |
 LL |         unsafe { &mut *std::cell::UnsafeCell::raw_get(x as *const _ as *const _) }
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -183,7 +183,7 @@ LL |         unsafe { &mut *std::cell::UnsafeCell::raw_get(x as *const _ as *con
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:82:18
+  --> $DIR/reference_casting.rs:80:18
    |
 LL |         unsafe { &mut *std::cell::UnsafeCell::raw_get(x as *const _ as *const _) }
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -191,7 +191,7 @@ LL |         unsafe { &mut *std::cell::UnsafeCell::raw_get(x as *const _ as *con
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:92:5
+  --> $DIR/reference_casting.rs:90:5
    |
 LL |     *(a as *const _ as *mut _) = String::from("Replaced");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -199,7 +199,7 @@ LL |     *(a as *const _ as *mut _) = String::from("Replaced");
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:94:5
+  --> $DIR/reference_casting.rs:92:5
    |
 LL |     *(a as *const _ as *mut String) += " world";
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -207,7 +207,7 @@ LL |     *(a as *const _ as *mut String) += " world";
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:96:5
+  --> $DIR/reference_casting.rs:94:5
    |
 LL |     *std::ptr::from_ref(num).cast_mut() += 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -215,7 +215,7 @@ LL |     *std::ptr::from_ref(num).cast_mut() += 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:98:5
+  --> $DIR/reference_casting.rs:96:5
    |
 LL |     *std::ptr::from_ref({ num }).cast_mut() += 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -223,7 +223,7 @@ LL |     *std::ptr::from_ref({ num }).cast_mut() += 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:100:5
+  --> $DIR/reference_casting.rs:98:5
    |
 LL |     *{ std::ptr::from_ref(num) }.cast_mut() += 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -231,7 +231,7 @@ LL |     *{ std::ptr::from_ref(num) }.cast_mut() += 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:102:5
+  --> $DIR/reference_casting.rs:100:5
    |
 LL |     *(std::ptr::from_ref({ num }) as *mut i32) += 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -239,7 +239,7 @@ LL |     *(std::ptr::from_ref({ num }) as *mut i32) += 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:104:5
+  --> $DIR/reference_casting.rs:102:5
    |
 LL |     *std::mem::transmute::<_, *mut i32>(num) += 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -247,7 +247,7 @@ LL |     *std::mem::transmute::<_, *mut i32>(num) += 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:106:5
+  --> $DIR/reference_casting.rs:104:5
    |
 LL |     *(std::mem::transmute::<_, *mut i32>(num) as *mut i32) += 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -255,7 +255,7 @@ LL |     *(std::mem::transmute::<_, *mut i32>(num) as *mut i32) += 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:108:5
+  --> $DIR/reference_casting.rs:106:5
    |
 LL | /     std::ptr::write(
 LL | |
@@ -267,7 +267,7 @@ LL | |     );
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:113:5
+  --> $DIR/reference_casting.rs:111:5
    |
 LL |     *((&std::cell::UnsafeCell::new(0)) as *const _ as *mut i32) = 5;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -276,7 +276,7 @@ LL |     *((&std::cell::UnsafeCell::new(0)) as *const _ as *mut i32) = 5;
    = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get`
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:117:5
+  --> $DIR/reference_casting.rs:115:5
    |
 LL |     let value = num as *const i32 as *mut i32;
    |                 ----------------------------- casting happend here
@@ -286,7 +286,7 @@ LL |     *value = 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:121:5
+  --> $DIR/reference_casting.rs:119:5
    |
 LL |     let value = value as *mut i32;
    |                 ----------------- casting happend here
@@ -296,7 +296,7 @@ LL |     *value = 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:124:5
+  --> $DIR/reference_casting.rs:122:5
    |
 LL |     let value = num as *const i32 as *mut i32;
    |                 ----------------------------- casting happend here
@@ -306,7 +306,7 @@ LL |     *value = 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:127:5
+  --> $DIR/reference_casting.rs:125:5
    |
 LL |     let value = num as *const i32 as *mut i32;
    |                 ----------------------------- casting happend here
@@ -317,7 +317,7 @@ LL |     *value_rebind = 1;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:129:5
+  --> $DIR/reference_casting.rs:127:5
    |
 LL |     *(num as *const i32).cast::<i32>().cast_mut() = 2;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -325,7 +325,7 @@ LL |     *(num as *const i32).cast::<i32>().cast_mut() = 2;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:131:5
+  --> $DIR/reference_casting.rs:129:5
    |
 LL |     *(num as *const _ as usize as *mut i32) = 2;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -333,7 +333,7 @@ LL |     *(num as *const _ as usize as *mut i32) = 2;
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:133:5
+  --> $DIR/reference_casting.rs:131:5
    |
 LL |     let value = num as *const i32 as *mut i32;
    |                 ----------------------------- casting happend here
@@ -344,7 +344,7 @@ LL |     std::ptr::write(value, 2);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:135:5
+  --> $DIR/reference_casting.rs:133:5
    |
 LL |     let value = num as *const i32 as *mut i32;
    |                 ----------------------------- casting happend here
@@ -355,7 +355,7 @@ LL |     std::ptr::write_unaligned(value, 2);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:137:5
+  --> $DIR/reference_casting.rs:135:5
    |
 LL |     let value = num as *const i32 as *mut i32;
    |                 ----------------------------- casting happend here
@@ -366,7 +366,7 @@ LL |     std::ptr::write_volatile(value, 2);
    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
 
 error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
-  --> $DIR/reference_casting.rs:141:9
+  --> $DIR/reference_casting.rs:139:9
    |
 LL |         *(this as *const _ as *mut _) = a;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/structs-enums/type-sizes.rs b/tests/ui/structs-enums/type-sizes.rs
index 406e5c8441e..490d6a2f918 100644
--- a/tests/ui/structs-enums/type-sizes.rs
+++ b/tests/ui/structs-enums/type-sizes.rs
@@ -4,7 +4,6 @@
 #![allow(dead_code)]
 #![feature(never_type)]
 #![feature(pointer_is_aligned)]
-#![feature(ptr_from_ref)]
 #![feature(strict_provenance)]
 
 use std::mem::size_of;
diff --git a/tests/ui/traits/next-solver/issue-118950-root-region.stderr b/tests/ui/traits/next-solver/issue-118950-root-region.stderr
index 6b43b95fef3..c16a48d5f15 100644
--- a/tests/ui/traits/next-solver/issue-118950-root-region.stderr
+++ b/tests/ui/traits/next-solver/issue-118950-root-region.stderr
@@ -13,14 +13,14 @@ LL | #![feature(lazy_type_alias)]
    = note: see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
-WARN rustc_infer::infer::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
+WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: Alias(Weak, AliasTy { args: [RePlaceholder(!1_BoundRegion { var: 0, kind: BrNamed(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), 'a) }), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc) })
 error[E0119]: conflicting implementations of trait `Overlap<fn(_)>` for type `fn(_)`
   --> $DIR/issue-118950-root-region.rs:18:1
    |
diff --git a/triagebot.toml b/triagebot.toml
index 30f049c79d6..2867bbc8171 100644
--- a/triagebot.toml
+++ b/triagebot.toml
@@ -441,6 +441,14 @@ cc = ["@rust-lang/miri"]
 message = "Some changes occurred in need_type_info.rs"
 cc = ["@lcnr"]
 
+[mentions."compiler/rustc_middle/src/ty/relate.rs"]
+message = "Type relation code was changed"
+cc = ["@compiler-errors", "@lcnr"]
+
+[mentions."compiler/rustc_infer/src/infer/relate"]
+message = "Type relation code was changed"
+cc = ["@compiler-errors", "@lcnr"]
+
 [mentions."compiler/rustc_middle/src/mir/interpret"]
 message = "Some changes occurred to the CTFE / Miri engine"
 cc = ["@rust-lang/miri"]
@@ -555,15 +563,15 @@ cc = ["@oli-obk", "@RalfJung", "@JakobDegen", "@davidtwco", "@celinval", "@vakar
 
 [mentions."compiler/rustc_error_messages"]
 message = "`rustc_error_messages` was changed"
-cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@TaKO8Ki"]
+cc = ["@davidtwco", "@compiler-errors", "@TaKO8Ki"]
 
 [mentions."compiler/rustc_errors/src/translation.rs"]
 message = "`rustc_errors::translation` was changed"
-cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@TaKO8Ki"]
+cc = ["@davidtwco", "@compiler-errors", "@TaKO8Ki"]
 
 [mentions."compiler/rustc_macros/src/diagnostics"]
 message = "`rustc_macros::diagnostics` was changed"
-cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@TaKO8Ki"]
+cc = ["@davidtwco", "@compiler-errors", "@TaKO8Ki"]
 
 [mentions."compiler/stable_mir"]
 message = "This PR changes Stable MIR"