Rollup merge of #114288 - Urgau:fix-issue-109352, r=b-naber

Improve diagnostic for wrong borrow on binary operations

This PR improves the diagnostic for wrong borrow on binary operations by suggesting to reborrow on appropriate expressions.

```diff
+    = note: an implementation for `&Foo * &Foo` exist
+ help: consider reborrowing both sides
+    |
+ LL |     let _ = &*ref_mut_foo * &*ref_mut_foo;
+    |             ++              ++
```

Fixes rust-lang/rust#109352

Author: matthiaskrgr