[llvm] [CodeView] Match MSVC implicit this records for Visual Studio (PR #214289)

[via llvm-commits]

GkvJwa wrote:

@efriedma-quic @Nerixyz 
https://developercommunity.visualstudio.com/t/Clang-debugger-shows-this-pointer-as-o/11090679

After I consulted Microsoft, they informed me that they had already addressed this issue and would release it immediately. It seems that no modifications are needed for LLVM. thank you all very much.

https://github.com/llvm/llvm-project/pull/214289