{"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
            let ty = tcx.typeck(def_id).node_type(tcx.local_def_id_to_hir_id(def_id));
        Node::Ty(&hir::Ty { kind: TyKind::Typeof(ref e), span, .. }) if e.hir_id == hir_id => {
            let ty = fold_regions(tcx, ty, |r, _| {