[clang] WIP: [clang] MicrosoftCXXABI: Serialize the exception copy constructor table in the AST (PR #114075)

[Andrey Glebov via cfe-commits]

glebov-andrey wrote:

(Ping)
I just squashed and rebased onto `main`.
Is there any possibility of getting this into Clang 21?

https://github.com/llvm/llvm-project/pull/114075