[clang] [llvm] Reland "[HLSL] Implement the `reflect` HLSL function" (PR #123853)

[Farzon Lotfi via llvm-commits]

farzonl wrote:

@inbelic look into lit `UNSUPPORTED` or `REQUIRES:` There is likely one or a combination of both we can do to avoid the asan tests.

https://github.com/llvm/llvm-project/pull/123853