{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"assert_eq!(def_key.disambiguated_data.data,"}]}
                assert_eq!(def_key.disambiguated_data.data, DefPathData::Ctor);
                let def_key = self.def_key(id);
                let parent_id = def_key.parent.expect("no parent for a constructor");