contract test {
    fn a(u256 a, u256 b, u256 c) -> (u256 r) { r = a * 100 + b * 10 + c * 1; }
    fn b() -> (u256 r) { r = a({c: 3, a: 1, b: 2}); }
}
// ====
// compileToEwasm: also
// compileViaYul: also
// ----
// b()  -> 123