{"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":")"}]}
) -> Result<(), ErrorGuaranteed> {
    adt_to_impl_args: GenericArgsRef<'tcx>,
    let Err(arg) = tcx.uses_unique_generic_params(adt_to_impl_args, CheckRegions::OnlyParam) else {