{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"if"}]}
            if args.as_coroutine().kind_ty() == id_args.as_coroutine().kind_ty() {
            // then this must be a coroutine generated by one of the `ConstructCoroutineInClosureShim`s.
                Some(Instance { def: ty::InstanceKind::Item(coroutine_def_id), args })