[clang] [CIR] Add initial support for virtual base classes (PR #155534)

[Andy Kaylor via cfe-commits]

================
@@ -899,6 +933,52 @@ void CIRRecordLowering::accumulateBases(const CXXRecordDecl *cxxRecordDecl) {
   }
 }
 
+void CIRRecordLowering::accumulateVBases() {
----------------
andykaylor wrote:

Yes, we should definitely update to the newer code structure. Thanks for catching that!

https://github.com/llvm/llvm-project/pull/155534