Preparing for 4.9.3 release

[parrt]

It's that time of year again! @pboyer, @mike-lischke, @janyou, @ewanmellor, @hanjoes, @ericvergnaud, @lingyv-li, @marcospassos Shall we do a 4.9.3 release?

I went through and marked all of the merged PRs and related issues with 4.9.3 and try to tag them according to their target. Would you guys like to go through the PRs to see if there's something that should be merged quickly?

[KvanTTT]

This one can be merged: #3211

[parrt]

Thanks, @KvanTTT I was just going to add you to this participant list...merged.

[hanjoes]

here is a list of PRs related, not sure if i'm missing out anything: https://github.com/antlr/antlr4/pulls?q=is%3Apr+is%3Aopen+swift
#3025 #3026 #3098 #3099 seem fine to be merged
#3132 is related to #1771 where you folks seem to have had a massive discussion .. will need to take a look later in the day.

[parrt]

Ok, I merged all those except #3132. thanks!

[lingyv-li]

yay!
#3119 #3245 #3246 #3247 #3253 should be ready to be merged.
#3191 can be closed (without merging) as it's achieved by #3250

[ericvergnaud]

All good here, nothing to merge for C#, Javascript, Python2 or Python3

[mike-lischke]

I have nothing (to my knowledge) that would need to be merged yet for this release (regarding the C++ target).

btw. would it be possible to notify target owners when an issue or PR is posted and tagged with a language? Or some other kind of notification?

[parrt]

@mike-lischke I try to add the target label as I merge PRs and close bugs.

@lingyv-li ok, I have merged all of those you mentioned!

thanks guys!

[parrt]

@hanjoes it looks like the swift target is failing. can you take a look at the error message? https://github.com/antlr/antlr4/runs/3863274808?check_suite_focus=true

Actually Swift just ran through all the tests on my local machine no problem so we can call it good.

[parrt]

I don't think we use travis anymore right for continuous integration? https://app.travis-ci.com/github/antlr/antlr4 so maybe we should take off the badge from the readme?