[clang] [NFC] Factor out common parts of ArraySections into its own class (PR #89639)

[Erich Keane via cfe-commits]

================
@@ -11762,20 +11770,25 @@ 
TreeTransform<Derived>::TransformOMPArraySectionExpr(OMPArraySectionExpr *E) {
   }
 
   ExprResult Stride;
-  if (Expr *Str = E->getStride()) {
-    Stride = getDerived().TransformExpr(Str);
-    if (Stride.isInvalid())
-      return ExprError();
+  if (E->isOMPArraySection()) {
+    if (Expr *Str = E->getStride()) {
+      Stride = getDerived().TransformExpr(Str);
+      if (Stride.isInvalid())
+        return ExprError();
+    }
   }
 
   if (!getDerived().AlwaysRebuild() && Base.get() == E->getBase() &&
-      LowerBound.get() == E->getLowerBound() && Length.get() == E->getLength())
+      LowerBound.get() == E->getLowerBound() &&
+      Length.get() == E->getLength() &&
+      (E->isOpenACCArraySection() || Stride.get() == E->getStride()))
----------------
erichkeane wrote:

This is another bug fix, we previously weren't checking this correctly here.

https://github.com/llvm/llvm-project/pull/89639
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