[llvm] [LLVM] Add `LLVMIntrinsicCopyName` to LLVM C API (PR #112197)

[Nicolai Hähnle via llvm-commits]

https://github.com/nhaehnle commented:

I haven't been able to follow the overall discussion about intrinsic names. I think the code change is fine in terms of quality, but whether it should go ahead depends on where the overall discussion is going.

https://github.com/llvm/llvm-project/pull/112197