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, 10 insertions, 7 deletions

diff --git a/compiler/rustc_mir/src/borrow_check/diagnostics/mutability_errors.rs b/compiler/rustc_mir/src/borrow_check/diagnostics/mutability_errors.rs
index 28f6508cab2..d1fb999e518 100644
--- a/compiler/rustc_mir/src/borrow_check/diagnostics/mutability_errors.rs
+++ b/compiler/rustc_mir/src/borrow_check/diagnostics/mutability_errors.rs
@@ -642,15 +642,18 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                                         .starts_with(&original_method_ident.name.to_string())
                             })
                             .map(|ident| format!("{}()", ident))
+                            .peekable()
                     });
 
-                if let Some(suggestions) = opt_suggestions {
-                    err.span_suggestions(
-                        path_segment.ident.span,
-                        &format!("use mutable method"),
-                        suggestions,
-                        Applicability::MaybeIncorrect,
-                    );
+                if let Some(mut suggestions) = opt_suggestions {
+                    if suggestions.peek().is_some() {
+                        err.span_suggestions(
+                            path_segment.ident.span,
+                            &format!("use mutable method"),
+                            suggestions,
+                            Applicability::MaybeIncorrect,
+                        );
+                    }
                 }
             }
         };