Update compiler/rustc_hir_typeck/src/method/suggest.rs

Author: WhyNovaa

compiler/rustc_hir_typeck/src/method/suggest.rs

@@ -3316,7 +3316,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     self.tcx
                         .non_blanket_impls_for_ty(trait_pred.def_id(), trait_pred.self_ty())
                         .any(|impl_def_id| {
-                            self.tcx.type_of(impl_def_id)
+                            self.tcx
+                                .type_of(impl_def_id)
                                 .instantiate_identity()
                                 .ty_adt_def()
                                 .is_some_and(|def| def.did() == adt.did())

tests/ui/suggestions/derive-clone-already-present-issue-146515.rs

@@ -8,8 +8,13 @@ struct ContainsRc<T> {
 }
 
 fn clone_me<T>(x: &ContainsRc<T>) -> ContainsRc<T> {
+    //~^ NOTE expected `ContainsRc<T>` because of return type
     x.clone()
     //~^ ERROR mismatched types
+    //~| NOTE expected `ContainsRc<T>`, found `&ContainsRc<T>`
+    //~| NOTE expected struct `ContainsRc<_>`
+    //~| NOTE `ContainsRc<T>` does not implement `Clone`, so `&ContainsRc<T>` was cloned instead
+    //~| NOTE the trait `Clone` must be implemented
 }
 
 fn main() {}

tests/ui/suggestions/derive-clone-already-present-issue-146515.stderr

@@ -1,15 +1,16 @@
 error[E0308]: mismatched types
-  --> $DIR/derive-clone-already-present-issue-146515.rs:11:5
+  --> $DIR/derive-clone-already-present-issue-146515.rs:12:5
    |
 LL | fn clone_me<T>(x: &ContainsRc<T>) -> ContainsRc<T> {
    |                                      ------------- expected `ContainsRc<T>` because of return type
+LL |
 LL |     x.clone()
    |     ^^^^^^^^^ expected `ContainsRc<T>`, found `&ContainsRc<T>`
    |
    = note: expected struct `ContainsRc<_>`
            found reference `&ContainsRc<_>`
 note: `ContainsRc<T>` does not implement `Clone`, so `&ContainsRc<T>` was cloned instead
-  --> $DIR/derive-clone-already-present-issue-146515.rs:11:5
+  --> $DIR/derive-clone-already-present-issue-146515.rs:12:5
    |
 LL |     x.clone()
    |     ^