2018 edition support?

[alex]

Hi, I'm attempting to use ctest2 with a -sys crate that uses edition = "2018", however it looks like that may be unsupported?

The proximate errors I'm seeing are:

error: expected identifier, found keyword crate

I suspect adding new edition support is non-trivial, but I figured I should ask. If adding it is too difficult, it may be worth documenting.

[JohnTitor]

It would require a complete rewrite, see #6 (comment) and other issues. I'm afraid I don't have enough time to do this, but I'd love to see any PRs/suggestions/opinions, etc. about it!

[alex]

That's sort of what I was afraid of :-) In the meantime I hacked around crate by replacing it with super (and super::super!) in a few places, so this one came off the front burner.