{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"OpaqueHiddenType"}]}
        OpaqueHiddenType { span: DUMMY_SP, ty: Ty::new_error(tcx, guar) }
    pub fn new_error(tcx: TyCtxt<'tcx>, guar: ErrorGuaranteed) -> OpaqueHiddenType<'tcx> {
    }