{"ast_node_type":"other","tokens":[{"end":123,"kind":"keyword","start":0,"text":"//"}]}
                                // This is not strictly correct, but it's likely that the user can fix the local component.
                                // Say that a tuple is local if any of its components are local.
                                ty::Tuple(tys) => tys.iter().any(|ty| ty_is_local(ty)),