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, 0 insertions, 21 deletions

diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs
index c63edf365a1..9d70bc4a82d 100644
--- a/compiler/rustc_passes/src/dead.rs
+++ b/compiler/rustc_passes/src/dead.rs
@@ -133,22 +133,6 @@ impl<'tcx> MarkSymbolVisitor<'tcx> {
         }
     }
 
-    fn handle_assign(&mut self, expr: &'tcx hir::Expr<'tcx>) {
-        if self
-            .typeck_results()
-            .expr_adjustments(expr)
-            .iter()
-            .any(|adj| matches!(adj.kind, ty::adjustment::Adjust::Deref(_)))
-        {
-            self.visit_expr(expr);
-        } else if let hir::ExprKind::Field(base, ..) = expr.kind {
-            // Ignore write to field
-            self.handle_assign(base);
-        } else {
-            self.visit_expr(expr);
-        }
-    }
-
     fn handle_field_pattern_match(
         &mut self,
         lhs: &hir::Pat<'_>,
@@ -277,11 +261,6 @@ impl<'tcx> Visitor<'tcx> for MarkSymbolVisitor<'tcx> {
             hir::ExprKind::MethodCall(..) => {
                 self.lookup_and_handle_method(expr.hir_id);
             }
-            hir::ExprKind::Assign(ref left, ref right, ..) => {
-                self.handle_assign(left);
-                self.visit_expr(right);
-                return;
-            }
             hir::ExprKind::Field(ref lhs, ..) => {
                 self.handle_field_access(&lhs, expr.hir_id);
             }