[llvm] [Offload] Store kernel name in GenericKernelTy (PR #142799)

[Joseph Huber via llvm-commits]

https://github.com/jhuber6 commented:

This is only used for debugging where this is valid since it's nested. I could see getting rid of this field otherwise. I think the user should likely be the one to keep track of symbol names, just like how `dlsym()` doesn't give you a pointer to a struct that contains the name.

https://github.com/llvm/llvm-project/pull/142799