[clang-tools-extra] Adding first version for which clang-tidy checks and their options are available (PR #162937)

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0hDEADBEAF wrote:

Hello vbvictor!
Thank you for your repsonse, it is now more clear how should I proceeed. Answering your points:

1. I am sorry, I am not quite sure to understand what you mean by 

> Upstream this script for review.

Does that mean I should make a separate PR with only this script for people to review it? Or upload it somewhere (Gist?) and share it for review (if so, which platform should I share it on? Discourse? Discord?).
Regardless of that, I still have some modifications/cleanups to do regarding it and I also need to make sure it follows [LLVM guidelines](https://llvm.org/docs/CodingStandards.html#python-version-and-source-code-formatting).

2. To make sure I understand properly what you mean: once the script is reviewed and approved, I should *merge* it with `add_new_check.py` file so the versions are then automatically generated for the docuementation?

3. Alright, sounds good to me! If we omit minor and patch versions, should I consider that LLVM v15 is referring to the latest v15 release (15.0.7) or the first one (15.0.0)? In case it ever matters and actually changes what checks/options are available. I feel like using the latest version (in this case, 15.0.7) would make the most sense.

https://github.com/llvm/llvm-project/pull/162937