[llvm] [SPIRV] Change how to detect OpenCL/Vulkan Env and update tests accordingly. (PR #129689)

[Marcos Maronas via llvm-commits]

maarquitos14 wrote:

> 
> Don't know for others, but there is the `re-request review` button which will make this reappear in the https://github.com/pulls/review-requested page (vs a ping which is 1 notification in a ocean of noise)

Thanks, I have done it now. Originally I couldn't even ask for reviewers myself (@VyacheslavLevytskyy did it for me), so I assumed I could not ask for re-review either, but turns out I can.

https://github.com/llvm/llvm-project/pull/129689