{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"covfun_records.extend(unused_instances.into_iter().filter_map(|unused|"}]}
    covfun_records.extend(unused_instances.into_iter().filter_map(|unused| try {
    let mut name_globals = Vec::with_capacity(unused_instances.len());
        let record = prepare_covfun_record(cx.tcx, unused.instance, false)?;