{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"debug!(\"resolve_for_vtable(def_id={:?},"}]}
        debug!("resolve_for_vtable(def_id={:?}, args={:?})", def_id, args);
    ) -> Instance<'tcx> {
        let fn_sig = tcx.fn_sig(def_id).instantiate_identity();