{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"|"}]}
                    | AggregateKind::CoroutineClosure(def_id, args) => ty::tls::with(|tcx| {
                    AggregateKind::Closure(def_id, args)
                        let name = if tcx.sess.opts.unstable_opts.span_free_formats {