{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":")"}]}
                    ) => region_relation.add(r_a, r_b),
                        ty::ReStatic | ty::ReEarlyParam(_) | ty::ReLateParam(_),
                    (ty::ReError(_), _) | (_, ty::ReError(_)) => {}