[llvm] [SPIRV] Test files for SPV_INTEL_device_side_avc_motion_estimation,SPV_INTEL_fast_math_mode,SPV_KHR_bfloat16,SPV_KHR_untyped_pointers (PR #153549)

[Victor Lomuller via llvm-commits]

https://github.com/Naghasan requested changes to this pull request.

I don't see the value of adding tests ahead of the implementation it is testing, both should go hand to hand.

the opencl c test should go to clang/test not llvm

https://github.com/llvm/llvm-project/pull/153549