// MIR for `unsigny` after built

fn unsigny(_1: UnsignedAroundZero) -> u16 {
    debug x => _1;
    let mut _0: u16;
    let _2: UnsignedAroundZero;
    let mut _3: u16;

    bb0: {
        StorageLive(_2);
        _2 = move _1;
        _3 = discriminant(_2);
        _0 = move _3 as u16 (IntToInt);
        StorageDead(_2);
        return;
    }
}
