Show that it will pick up the entirely wrong function as a private candidate

src/tools/tidy/src/ui_tests.rs

@@ -15,7 +15,7 @@ use std::path::{Path, PathBuf};
 const ENTRY_LIMIT: u32 = 900;
 // FIXME: The following limits should be reduced eventually.
 
-const ISSUES_ENTRY_LIMIT: u32 = 1674;
+const ISSUES_ENTRY_LIMIT: u32 = 1675;
 
 const EXPECTED_TEST_FILE_EXTENSIONS: &[&str] = &[
     "rs",     // test source files

tests/ui/issues/issue-53498.different_name.stderr

@@ -1,5 +1,5 @@
 error[E0624]: associated function `foo` is private
-  --> $DIR/issue-53498.rs:16:27
+  --> $DIR/issue-53498.rs:21:27
    |
 LL |         fn foo() {}
    |         -------- private associated function defined here

tests/ui/issues/issue-53498.rs

@@ -1,3 +1,5 @@
+//@ revisions: same_name different_name
+
 pub mod test {
     pub struct A;
     pub struct B;
@@ -8,10 +10,15 @@ pub mod test {
     }
 
     impl Foo<B> {
+        #[cfg(same_name)]
         fn foo() {}
+        #[cfg(different_name)]
+        fn bar() {}
     }
 }
 
 fn main() {
-    test::Foo::<test::B>::foo(); //~ ERROR associated function `foo` is private
+    test::Foo::<test::B>::foo();
+    //[same_name]~^ ERROR associated function `foo` is private
+    //[different_name]~^^ ERROR associated function `foo` is private
 }

tests/ui/issues/issue-53498.same_name.stderr

@@ -0,0 +1,12 @@
+error[E0624]: associated function `foo` is private
+  --> $DIR/issue-53498.rs:21:27
+   |
+LL |         fn foo() {}
+   |         -------- private associated function defined here
+...
+LL |     test::Foo::<test::B>::foo();
+   |                           ^^^ private associated function
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0624`.