[clang] [Clang][Sema]: Diagnose lambda to bool implicit casts (PR #83152)

[Vinayak Dev via cfe-commits]

vinayakdsci wrote:

@shafik I have made the change in the code as you suggested. If everything seems alright, could you land this for me?

Thanks a lot!

https://github.com/llvm/llvm-project/pull/83152