Lookup lang attribute on assoc item trait directly

crates/ide_completion/src/render.rs

@@ -400,6 +400,7 @@ mod tests {
                 (relevance.exact_name_match, "name"),
                 (relevance.is_local, "local"),
                 (relevance.exact_postfix_snippet_match, "snippet"),
+                (relevance.is_op_method, "op_method"),
             ]
             .into_iter()
             .filter_map(|(cond, desc)| if cond { Some(desc) } else { None })
@@ -1352,6 +1353,23 @@ fn main() {
         )
     }
 
+    #[test]
+    fn op_method_relevances() {
+        check_relevance(
+            r#"
+#[lang = "sub"]
+trait Sub {
+    fn sub(self, other: Self) -> Self { self }
+}
+impl Sub for u32 {}
+fn foo(a: u32) { a.$0 }
+"#,
+            expect![[r#"
+                me sub(…) (as Sub) [op_method]
+            "#]],
+        )
+    }
+
     #[test]
     fn struct_field_method_ref() {
         check_kinds(