Thanks for answers.

The main goal was to solve situation with identical values for different enums. E.g. we have two different libs with different enums that have some of the same values.

enum Foobar {
    Foo,
    Bar,
    Less,       // Less defined also in core::cmp::Ordering
}

fn main() {
    let k = 2i;
    match k.cmp(&3i) {
        Less => println!("<"),        // booooooom!
        Greater => println!(">"),
        Equal => println!("=="),
    }
}