[clang] [clang][ExprConst] Support virtual bases in C++26 (PR #204289)

[Yihan Wang via cfe-commits]

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@@ -7186,9 +7301,10 @@ static bool HandleConstructorCall(const Expr *E, const LValue &This,
 
   bool Success = true;
   unsigned BasesSeen = 0;
-#ifndef NDEBUG
-  CXXRecordDecl::base_class_const_iterator BaseIt = RD->bases_begin();
-#endif
+  unsigned VirtualBasesSeen = 0;
+  unsigned NonVirtualBases =
+      llvm::count_if(RD->bases(), [](auto &B) { return !B.isVirtual(); });
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yronglin wrote:

Same as above

https://github.com/llvm/llvm-project/pull/204289