Regexes

[mcarton]

invalid_regex and trivial_regex can now warn on RegexSet::new, Regex::with_size_limit, RegexBuilder::new and both unicode and byte regexes (before only regex::re_unicode::Regex::new was considered).

Cc @BurntSushi.

[BurntSushi]

Note that Regex::with_size_limit will probably be going away soon once 1.0 lands. You'll probably want to lint RegexBuilder and bytes::RegexBuilder instead.

[mcarton]

Thanks for pointing that out, done.

[llogiq]

I'm a tiny bit annoyed that I didn't come up with this myself, given that I introduced regex::bytes to the benchmarksgame's regex-dna entry...but I'm still happy you built it. 👍