[clang] [Clang] Accept vector types in the atomic builtins (PR #214653)

[Erich Keane via cfe-commits]

erichkeane wrote:

> > This PR doesn't appear to comply with our policy on tool-generated content, and requires additional justification for why it is valuable enough to the project for us to review it. Please see our developer policy on AI-generated contributions: http://llvm.org/docs/AIToolPolicy.html
> > In particular, this does not show any evidence of the "human in the loop" (and is very clearly fully AI generated). And based on your other PR, it appears you need to spend less time with your AI and more time working through this on your own.
> 
> @erichkeane Thank you for your review. I can understand your concern. I build it, tested it locally, review it before publishing on github. I would appreciate if you review it and keep the pr open, I will address all your concern during the review process. I used AI here as an assisting tool. I will be more careful about your concern from next time.

Please read the message.  The 'human in the loop' is insufficient here.  This is not a 'do better next time', this is a 'do better right now' warning.  This is now in "requires additional justification for why it is valuable enough to the project for us to review it".

https://github.com/llvm/llvm-project/pull/214653