[llvm] [offload][SYCL] Add SYCL Module splitting. (PR #131347)

[Johannes Doerfert via llvm-commits]

jdoerfert wrote:

I think that makes sense, though there doesn't seem to be a need for "std::string", IMHO. An integer should be just fine. The user can map strings to integers if they need to.

https://github.com/llvm/llvm-project/pull/131347