contract test {
    fn run(bool x1, u256 x2) ->(u256 y1, bool y2, u256 y3) {
        y1 = x2; y2 = x1;
    }
}
// ====
// compileToEwasm: also
// compileViaYul: also
// ----
// run(bool,u256): true, 0xcd  -> 0xcd, true, 0