[clang] [CIR] Upstream minimal builtin function call support (PR #142981)

[Erich Keane via cfe-commits]

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@@ -47,6 +47,10 @@ class CIRGenFunction : public CIRGenTypeCache {
   /// is where the next operations will be introduced.
   CIRGenBuilderTy &builder;
 
+  /// Largest vector width used in ths function. Will be used to create a
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erichkeane wrote:

```suggestion
  /// Largest vector width used in this function. Will be used to create a
```

https://github.com/llvm/llvm-project/pull/142981