Updates

[amaanq]

(Maybe) Closes #244
Closes #271
Closes #287
Closes #289
Closes #292
Closes #293

[dcreager]

This PR was opened, and then merged 20 minutes later with no review. It looks like it was largely about updating the language bindings, and so I realize there wasn't a lot of "meat" to review. But I still think it's important to get another set of 👀 on every PR, even the superficial ones. (Especially the large superficial ones!) In this case, you could have provided a PR description calling out that it's largely boilerplate changes, and not substantially touching the actual grammar, which would have made the reviewer's job much easier.

[amaanq]

I guess, I just made the same changes in a bunch of upstream repos (php, regex, ruby, embedded template, etc) so I don't think it really warranted review since they were, by and large, the exact same changes already incorporated in other grammars (rust, js, go, etc)