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

[Arvind Sudarsanam via cfe-commits]

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asudarsa wrote:

Modified the test to just use empty files. Change can be found in 307c74ea4f910a7698a6084db710ff7b699c5c93

Thanks

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