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

[Sander de Smalen via cfe-commits]

================
@@ -3723,8 +3723,8 @@ def warn_sme_streaming_pass_return_vl_to_non_streaming : Warning<
   " different">,
   InGroup<AArch64SMEAttributes>, DefaultIgnore;
 def warn_sme_locally_streaming_has_vl_args_returns : Warning<
-  "passing/returning a VL-dependent argument from a function"
-  " arm_locally_streaming attribute. The streaming and non-streaming vector"
+  "passing/returning a VL-dependent argument from a arm_locally_streaming"
----------------
sdesmalen-arm wrote:

```suggestion
  "passing/returning a VL-dependent argument from a __arm_locally_streaming"
```

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