Use a different function signature instead of a separate goto_stubs function

test/test_api/test_keyword.py

@@ -35,7 +35,7 @@ def test_keyword_attributes(Script):
     assert def_.complete == ''
     assert def_.is_keyword is True
     assert def_.is_stub() is False
-    assert def_.goto_stubs() == []
+    assert def_.goto_assignments(only_stubs=True) == []
     assert def_.goto_assignments() == []
     assert def_.infer() == []
     assert def_.parent() is None