[clang] [Clang] Improve testing for the flexible array member (PR #89462)

[Bill Wendling via cfe-commits]

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@@ -930,12 +931,12 @@ CodeGenFunction::emitFlexibleArrayMemberSize(const Expr *E, unsigned Type,
 
   // Get the flexible array member Decl.
   const RecordDecl *OuterRD = nullptr;
-  std::string FAMName;
+  const FieldDecl *FAMDecl = nullptr;
   if (const auto *ME = dyn_cast<MemberExpr>(Base)) {
     // Check if \p Base is referencing the FAM itself.
     const ValueDecl *VD = ME->getMemberDecl();
     OuterRD = VD->getDeclContext()->getOuterLexicalRecordContext();
-    FAMName = VD->getNameAsString();
+    FAMDecl = dyn_cast<FieldDecl>(VD);
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bwendling wrote:

Wouldn't hurt. Done.

https://github.com/llvm/llvm-project/pull/89462