[clang] [Clang][Sema]: Allow copy constructor side effects (PR #81127)

[Vinayak Dev via cfe-commits]

vinayakdsci wrote:

> LGTM Make sure @cor3ntin is happy, too.

Thanks a lot! I have requested a review from @cor3ntin too. Thanks for your guidance!

https://github.com/llvm/llvm-project/pull/81127