[clang] [ASTImport]improve ast comparation (PR #66110)

[Shafik Yaghmour via cfe-commits]

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@@ -1295,6 +1306,21 @@ static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
   return true;
 }
 
+static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
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shafik wrote:

Should we also be checking the storage class and the various bits for example `CXXForRangeDecl` etc? 

https://github.com/llvm/llvm-project/pull/66110