Add MLIR grammar

[jpienaar]

Add support for MLIR

Description

Add support for MLIR.

Checklist:

• I am adding a new language.
  • The extension of the new language is used in hundreds of repositories on GitHub.com.
    • Search results for each extension:
      • https://github.com/search?q=extension%3Amlir+NOT+nothack&type=Code
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • const-fold.mlir
      • core-ops.mlir
      • executor_to_control_dialect.mlir
      • sample.mlir
    • Sample license(s): Apache-2.0
  • I have included a syntax highlighting grammar:
    core-ops

[pchaigno]

LGTM! The tests failures are unrelated to this pull request, they work fine for me locally.

@jpienaar Could you update the template with the link to the exact sample file you used?

[jpienaar]

@pchaigno Thanks! I combined it from multiple of the unit tests to get something a bit more interesting mix of types (all from the same repo and with same license). Would you prefer if I use one/more exact file instead?

[jpienaar]

Updated template to point to exact file instead.

[pchaigno]

I combined it from multiple of the unit tests to get something a bit more interesting mix of types (all from the same repo and with same license).

Thanks for the explanation. Including a few files instead of a single one would have been fine too.

[jpienaar]

I combined it from multiple of the unit tests to get something a bit more interesting mix of types (all from the same repo and with same license).

Thanks for the explanation. Including a few files instead of a single one would have been fine too.

Sounds good to me, added a few more (exact samples from real usage). Let me know if anything else is needed. Thanks

[lildude]

The test failure here is legit:

/home/runner/work/linguist/linguist/vendor/licenses/grammar/mlir-grammar.txt:
  - cached license data out of date

You'll need to run script/licensed (which should update the version in the license) and commit the updated file. You might need to manually add back the license text though, so feel free to.

[jpienaar]

The test failure here is legit:

/home/runner/work/linguist/linguist/vendor/licenses/grammar/mlir-grammar.txt:
  - cached license data out of date

You'll need to run script/licensed (which should update the version in the license) and commit the updated file. You might need to manually add back the license text though, so feel free to.

Updated, that did it thanks

[jpienaar]

This seems to have stopped working (previously highlighted file no longer works), I don't see anything in the commit logs that would indicate a change though.

[lildude]

I've taken a look into this as this appears to only affect languages or grammars added in v7.6.0. Work is underway to improved the syntax highlighting service used by GitHub and I suspect it has missed the v7.6.0 update. I've opened an issue to bring this to the attention of the team responsible for the improvements.

I'll update when I know more or when things are working as expected again.

[lildude]

Work is underway to improved the syntax highlighting service used by GitHub and I suspect it has missed the v7.6.0 update.

All sorted. This was indeed the case.

[jpienaar]

Work is underway to improved the syntax highlighting service used by GitHub and I suspect it has missed the v7.6.0 update.

All sorted. This was indeed the case.

Great, thanks!