contract C {
    fn f() -> (u32 x) {
        // tests that ``e`` is not converted to u32
        // right before the exp
        u32 e = 0x100;
        u32 b = 0x2;
    }
}
// ====
// compileViaYul: also
// compileToEwasm: also
// ----
// f()  -> 0x00