[clang-tools-extra] [clang] [clang][NFC] Refactor `CXXNewExpr::InitializationStyle` (PR #71322)

[Timm Baeder via cfe-commits]

================
@@ -2388,15 +2389,20 @@ class CXXNewExpr final
 
   /// Whether this new-expression has any initializer at all.
   bool hasInitializer() const {
-    return CXXNewExprBits.StoredInitializationStyle > 0;
+    switch (getInitializationStyle()) {
+    case CXXNewInitializationStyle::None:
+      return true;
+    case CXXNewInitializationStyle::Implicit:
+    case CXXNewInitializationStyle::Call:
+    case CXXNewInitializationStyle::List:
+      return false;
+    }
----------------
tbaederr wrote:

```suggestion
    return getInitializationStyle() != CXXNewInitializationStyele::None;
```

(Isn't the logic of that code right now inverted?)

https://github.com/llvm/llvm-project/pull/71322