Filter testcases by regex instead of by (sub)string

[karlosss]

Hi!

As of now, it seems to be the case that the testcases can be filtered by a substring or by exact match (https://github.com/laumann/compiletest-rs/blob/master/src/common.rs#L149). I would appreciate if I could filter them using a regular expression. Is this somehow possible? I struggle to see it.

Thanks!

[Munksgaard]

Hi @karlosss,

Unfortunately, this PR mostly serves as a (pretty outdated) mirror of rusts builtin compiletest, so we don't generally add features not present there. I encourage you to either submit an issue (and preferably a PR) upstream, or try to use something else like https://github.com/dtolnay/trybuild instead.