[clang] [Clang][AArch64] Warn when calling streaming/non-streaming about vect… (PR #79842)

[Sander de Smalen via cfe-commits]

https://github.com/sdesmalen-arm commented:

Thanks for the update. I just left a few more suggestions to clean up the code a bit.

https://github.com/llvm/llvm-project/pull/79842