[clang] [Clang][NFC] tests showcasing incorrect use of HIP and OpenCL memory scope macros (PR #188890)

[Joseph Huber via cfe-commits]

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+// REQUIRES: amdgpu-registered-target
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jhuber6 wrote:

Does this actually require the target being registered? We're not making assembly AFAIK.

https://github.com/llvm/llvm-project/pull/188890