Add Truffleruby support

[gogainda]

No description provided.

[quine-bot]

👋 Figuring out if a PR is useful is hard, hopefully this will help.

• @gogainda has been on GitHub since 2010 and in that time has had 107 public PRs merged
• They haven't contributed to this repo before
• Here's a good example of their work: fast-truffleruby (:dash: Writing Fast Ruby :heart_eyes: -- Collect Common Ruby idioms.)
• From looking at their profile, they seem to be good with Ruby and Yacc.

Their most recently public accepted PR is: digital-fabric/extralite#5

[gogainda]

@eregon do you think it's safe change? It does the job (all internal errors are filtered out and tests are passing), but later on I noticed that some TypeError may dissapear as well, for example :

<internal:core> core/marshal.rb:51:in `__marshal__': singleton class can't be dumped (TypeError)
	from <internal:core> core/marshal.rb:1006:in `serialize'
	from <internal:core> core/marshal.rb:1309:in `dump'
	from -e:1:in `<main>'

[aslakhellesoy]

Could you please fix the rubocop error (use single quotes), and add truffleruby to the GitHub Actions build matrix?

[gogainda]

done

[eregon]

It should be any path starting with <internal:, that's also used by CRuby:

$ ruby -ve 'p method(:then).source_location'
ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux]
["<internal:kernel>", 120]

Since it's converted to a Regexp later, then '^<internal:' is best.

[luke-hill]

@gogainda it seems as though the existing CI fails some tests. I haven't got much time yet to check, but can you see if these are ones that should be passing or if this is a truffleruby nuance.

[gogainda]

checking, tests have passed but the process failed with:

Error: Process completed with exit code 137.

[aslakhellesoy]

checking, tests have passed but the process failed with:

Error: Process completed with exit code 137.

Yes, looks like it: https://github.com/cucumber/cucumber-ruby/runs/4999431897?check_suite_focus=true#step:3:459

I think we need to get to the bottom of what's causing that because we merge this. We need to be confident that all tests pass on truffleruby.

[gogainda]

Will close it for a while until I've found a root cause

[gogainda]

@aslakhellesoy I've added additional workflow for rubocop job.

Since output for every version is the same , we want to run it only once and leave ruby matrix only for testing

[gogainda]

created another PR for it #1612