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

[Sander de Smalen via cfe-commits]

================
@@ -7513,6 +7516,30 @@ void Sema::checkCall(NamedDecl *FDecl, const FunctionProtoType *Proto,
       }
     }
 
+    auto *CallerFD = dyn_cast<FunctionDecl>(CurContext);
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sdesmalen-arm wrote:

nit: move this closer to its use, preferably wrap the condition, e.g.
```
  if (auto *CallerFD = dyn_cast<..>(..)) {
    ...
  }
```

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