{"ast_node_type":"other","tokens":[{"end":6,"kind":"keyword","start":0,"text":"};"}]}
    };
        bug!("build_adrop_for_coroutine_shim not for coroutine impl type: ({:?})", instance);
    let proxy_ref = Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, proxy_ty);