xe: enable source code information for OpenCL kernels #2339
+141
−63
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As the difficult case for handling nGEN was already handled in #2297, it seems only fitting to enable debug information in the simpler case where we use OpenCL C kernels. This PR limits the scope of support for this to Linux due to the nuances required for handling temporary files. It should be fairly easy to extend with Windows support when it becomes useful.