Handle fully-qualified paths and add test cases

src/test/ui/suggestions/impl-on-dyn-trait-with-implicit-static-bound.rs

@@ -78,14 +78,35 @@ mod ban {
     trait MyTrait {
         fn use_self(&self) -> &() { panic!() }
     }
-    trait Irrelevant {}
+    trait Irrelevant {
+        fn use_self(&self) -> &() { panic!() }
+    }
 
     impl MyTrait for dyn ObjectTrait {}
-    impl Irrelevant for dyn ObjectTrait {}
 
     fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> {
         val.use_self() //~ ERROR E0759
     }
 }
 
+mod bal {
+    trait OtherTrait<'a> {}
+    impl<'a> OtherTrait<'a> for &'a () {}
+
+    trait ObjectTrait {}
+    trait MyTrait {
+        fn use_self(&self) -> &() { panic!() }
+    }
+    trait Irrelevant {
+        fn use_self(&self) -> &() { panic!() }
+    }
+
+    impl MyTrait for dyn ObjectTrait {}
+    impl Irrelevant for dyn ObjectTrait {}
+
+    fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a {
+        MyTrait::use_self(val) //~ ERROR E0759
+    }
+}
+
 fn main() {}