[clang] [Clang] Correctly handle callees whose type is a Record type when classifying expressions (PR #68078)

[Aaron Ballman via cfe-commits]

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@@ -1621,6 +1621,10 @@ QualType CallExpr::getCallReturnType(const ASTContext &Ctx) const {
     // This should never be overloaded and so should never return null.
     CalleeType = Expr::findBoundMemberType(Callee);
     assert(!CalleeType.isNull());
+  } else if (CalleeType->isRecordType()) {
+    // If the Callee is a record type, then it is a not-yet-resolved
+    // dependent call to call operator of that type.
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AaronBallman wrote:

```suggestion
    // dependent call to the call operator of that type.
```
Minor grammar nit.

https://github.com/llvm/llvm-project/pull/68078