[clang] [clang] Prevent stack overflow on deeply nested template arguments (PR #224393)

[Younan Zhang via cfe-commits]

https://github.com/zyn0217 requested changes to this pull request.

I think this isn't the behavior what we expect, we do have a stack guard that prevents from deep instantiation and one should investigate why that didn't work for this case.

https://github.com/llvm/llvm-project/pull/224393