D7908: rust-filepatterns: improve API and robustness for pattern files parsing

[kevincox (Kevin Cox)]

kevincox added inline comments.

INLINE COMMENTS

> Alphare wrote in filepatterns.rs:237
> I might be using godbolt wrong but it looks like you are using different versions of rustc. When using 1.40 for both sides, I don't see any clear win on either side... but I'm not fluent in assembly either. As I'm sure you'll agree, this function is unlikely to show up in future profiles anyway.

Oops. My mistake. But I think we agree that readability is the top priority (until profiles say otherwise)

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7908/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7908

To: Alphare, #hg-reviewers, kevincox
Cc: durin42, kevincox, mercurial-devel