{"ast_node_type":"other","tokens":[{"end":19,"kind":"keyword","start":0,"text":"arena_cache"}]}
        arena_cache
    query impl_item_implementor_ids(impl_id: DefId) -> &'tcx DefIdMap<DefId> {
        desc { |tcx| "comparing impl items against trait for `{}`", tcx.def_path_str(impl_id) }