{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"let"}]}
            let type_id = tcx.type_of(tcx.lang_items().type_id().unwrap()).instantiate_identity();
        sym::type_id_eq => {
            (0, 0, vec![type_id, type_id], tcx.types.bool)