[clang] [clang] Fix bogus "deduced type depends on itself" for variable template specializations (PR #217709)

[Akash Manna via cfe-commits]

akash-manna-sky wrote:

> I wonder if you or your AI has ever read https://llvm.org/docs/Contributing.html#how-to-submit-a-patch
> 
> > If you have received no comments on your patch for a week, you can request a review by ‘ping’ing the GitHub PR with “Ping” in a comment. The common courtesy ‘ping’ rate is once a week. Please remember that you are asking for valuable time from other professional developers.
> 
> Thanks.

Ping

https://github.com/llvm/llvm-project/pull/217709