{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"ty::Closure(_,"}]}
            ty::Closure(_, args) => args.as_closure().kind_ty(),
        let unresolved_kind_ty = match *closure_ty.kind() {
            ty::CoroutineClosure(_, args) => args.as_coroutine_closure().kind_ty(),