Rollup merge of rust-lang#94399 - GuillaumeGomez:regression-test-79465, r=matthiaskrgr

Add test for rust-lang#79465 to prevent regression

Fixes rust-lang#79465.

Like this we will be able to close the issue.

r? ``@matthiaskrgr``

Author: Dylan-DPC

src/test/rustdoc-ui/issue-79465.rs

@@ -0,0 +1,3 @@
+pub fn f1<T>(x: T::A) {}
+//~^ ERROR
+//~^^ ERROR

src/test/rustdoc-ui/issue-79465.stderr

@@ -0,0 +1,15 @@
+error[E0220]: associated type `A` not found for `T`
+  --> $DIR/issue-79465.rs:1:20
+   |
+LL | pub fn f1<T>(x: T::A) {}
+   |                    ^ associated type `A` not found
+
+error[E0220]: associated type `A` not found for `T`
+  --> $DIR/issue-79465.rs:1:20
+   |
+LL | pub fn f1<T>(x: T::A) {}
+   |                    ^ associated type `A` not found
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0220`.