[clang] [AArch64] Extend SVE diagnostics. (PR #94976)

[Sander de Smalen via cfe-commits]

https://github.com/sdesmalen-arm approved this pull request.

Thanks for fixing this, Clang shouldn't trigger an assertion failure. I also agree that changing the diagnostic location is an improvement.

https://github.com/llvm/llvm-project/pull/94976