Auto merge of #84864 - Mark-Simulacrum:stable-next, r=Mark-Simulacrum 1.52.0

[stable] 1.52.0 release

This includes the release notes (#84183) as well as cherry-picked commits from:

* [beta] revert PR #77885 #84710
* [beta] remove assert_matches #84759
* Revert PR 81473 to resolve (on beta) issues 81626 and 81658. #83171
* [beta] rustdoc revert deref recur #84868
*  Fix ICE of for-loop mut borrowck where no suggestions are available #83401

Additionally in "fresh work" we're also:

* reverting: directly expose copy and copy_nonoverlapping intrinsics #81238 to avoid https://github.com/rust-lang/rust/issues/84297 on 1.52

1 files changed, 23 insertions, 46 deletions

diff --git a/library/core/src/panicking.rs b/library/core/src/panicking.rs
index 3e3e96fcd7f..35d9b2c5d26 100644
--- a/library/core/src/panicking.rs
+++ b/library/core/src/panicking.rs
@@ -97,7 +97,6 @@ pub fn panic_fmt(fmt: fmt::Arguments<'_>) -> ! {
 pub enum AssertKind {
     Eq,
     Ne,
-    Match,
 }
 
 /// Internal function for `assert_eq!` and `assert_ne!` macros
@@ -114,54 +113,32 @@ where
     T: fmt::Debug + ?Sized,
     U: fmt::Debug + ?Sized,
 {
-    assert_failed_inner(kind, &left, &right, args)
-}
-
-/// Internal function for `assert_match!`
-#[cold]
-#[track_caller]
-#[doc(hidden)]
-pub fn assert_matches_failed<T: fmt::Debug + ?Sized>(
-    left: &T,
-    right: &str,
-    args: Option<fmt::Arguments<'_>>,
-) -> ! {
-    // Use the Display implementation to display the pattern.
-    struct Pattern<'a>(&'a str);
-    impl fmt::Debug for Pattern<'_> {
-        fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-            fmt::Display::fmt(self.0, f)
-        }
-    }
-    assert_failed_inner(AssertKind::Match, &left, &Pattern(right), args);
-}
-
-/// Non-generic version of the above functions, to avoid code bloat.
-#[track_caller]
-fn assert_failed_inner(
-    kind: AssertKind,
-    left: &dyn fmt::Debug,
-    right: &dyn fmt::Debug,
-    args: Option<fmt::Arguments<'_>>,
-) -> ! {
-    let op = match kind {
-        AssertKind::Eq => "==",
-        AssertKind::Ne => "!=",
-        AssertKind::Match => "matches",
-    };
-
-    match args {
-        Some(args) => panic!(
-            r#"assertion failed: `(left {} right)`
+    #[track_caller]
+    fn inner(
+        kind: AssertKind,
+        left: &dyn fmt::Debug,
+        right: &dyn fmt::Debug,
+        args: Option<fmt::Arguments<'_>>,
+    ) -> ! {
+        let op = match kind {
+            AssertKind::Eq => "==",
+            AssertKind::Ne => "!=",
+        };
+
+        match args {
+            Some(args) => panic!(
+                r#"assertion failed: `(left {} right)`
   left: `{:?}`,
  right: `{:?}`: {}"#,
-            op, left, right, args
-        ),
-        None => panic!(
-            r#"assertion failed: `(left {} right)`
+                op, left, right, args
+            ),
+            None => panic!(
+                r#"assertion failed: `(left {} right)`
   left: `{:?}`,
  right: `{:?}`"#,
-            op, left, right,
-        ),
+                op, left, right,
+            ),
+        }
     }
+    inner(kind, &left, &right, args)
 }