{"ast_node_type":"other","tokens":[{"end":103,"kind":"keyword","start":0,"text":"desc"}]}
        desc { |tcx| "retrieving coverage IDs info from MIR for `{}`", tcx.def_path_str(key.def_id()) }
    query coverage_ids_info(key: ty::InstanceKind<'tcx>) -> Option<&'tcx mir::coverage::CoverageIdsInfo> {
        arena_cache