{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":")"}]}
            ) if in_a.size(cx) == out_a.size(cx) && in_b.size(cx) == out_b.size(cx) => {
                abi::BackendRepr::ScalarPair(out_a, out_b),
                OperandValue::Pair(