[SYCL][HIP] Remove arg assert in LowerWGScope

[AidanBeltonS]

This PR removes the assert for parallel_for_work_items with one argument. AMD correctly optimises away empty lambda arguments as a result only 1 argument is passed to the parallel_work_itme function. As a result this triggers the assert in fixupPrivateMemoryPFWILambdaCaptures as the number of arguments is equal to 1.

This PR enables tests SpecConstants/2020/kernel_lambda_with_kernel_handler_arg.cpp and SpecConstants/2020/non_native/aot_w_kernel_handler_wo_spec_consts.cpp for the HIP backend.

[bader]

/verify with intel/llvm-test-suite#579

[bader]

@kbobrovs, several ESIMD tests fail with error: GENX IR generation error: VISA builder API call failed: CisaBuilder->Compile("genxir", &ss, EmitVisa). Please, mark them as "expected to fail" while ESIMD team is working on the fix. This is needed to keep pre-commit results clean from false alarms.

@t4c1, please, apply the same for reduction tests impacted by #5008.

[t4c1]

@bader I don't see any reduction tests failures with #5025. I am not sure if marking some tests with xfail and reverting that after the PR is merged makes sense. The PR is complete, it is just waiting for review.

[bader]

Fixing failures is even better. Thanks!

[kbobrovs]

@bader - will do.

[kbobrovs]

@bader - will do.

I can see these have already been marked. Working on a fix.