[clang] [Clang][SYCL] Introduce clang-sycl-link-wrapper to link SYCL offloading device code (Part 1 of many) (PR #112245)

[Joseph Huber via cfe-commits]

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jhuber6 wrote:

Testing like that is fine, it's just that you can do `clang_cc1 -emit-llvm %s -o %t.bc` or something.

https://github.com/llvm/llvm-project/pull/112245