Uppercase and lowercase generated test function collide about test-case HOT 4 OPEN

For now in such cases we provide way to comment test cases. Comments replace usual test name generation. There's more info on wiki https://github.com/frondeus/test-case/wiki/Test-Names.
There was a proposal to allow setting test names manually, but there wasn't enough need for that at the moment and it died, as comments suffice in most cases. As for indexing, maybe it would be nice to append them, but I need to sleep on the idea.

from test-case.

The solution provided on #19 should resolve this problem, but I'm not sure about a scenario like:

    #[test_case('a')]
    #[test_case('a')]
    fn test (_: u32, _: char) {
    }

Should it be accepted? From a library perspective, I don't see a reason for us to block it, but it would make tracing a bit more difficult.

from test-case.

from test-case.

I see

I am studying a way to refine the proposal I did on #19, but if we are considering that tests with the same name shouild not be accepted, then it makes things easier.

from test-case.