[SYCL] Fix bitselect builtin for integer types

[aelovikov-intel]

This regressed after #11956 as return type wasn't correctly converted from SPIR-V intrinsic back to SYCL types. This PR fixes that.

In addition, I'm also adding tests for sycl::select builtin that was left unaffected only because we couldn't use SPIR-V intrinsic for its implementation.

[github-actions]

✅ With the latest revision this PR passed the C/C++ code formatter.

[steffenlarsen]

LGTM!

[uditagarwal97]

nit: Perhaps you could add a comment here to state the objective(s) of this test case.

[aelovikov-intel]

It's not different from existing marray_relational.cpp and vec_relational.cpp and it never caused troubles to understand what they are doing... Are you asking about preview specifically? If yes, then it's a common idiom and we don't expect to document it in every file that uses it.

[uditagarwal97]

Nope, I was talking about providing a broader overview of this test case. To my inexperienced eyes, it wasn't readily clear.

[aelovikov-intel]

I think it matches how other builtins tests are set up, so I'm going to ignore it in scope of this PR.

[uditagarwal97]

I'm wondering do we have negative test cases for sycl::bitselect (with vector type inputs) to check if all the arguments to sycl::bitselect have same element types and the same vector length?

[aelovikov-intel]

To be honest, I'm relying on CTS to catch every possible obscure corner case. Otherwise, the full testing for all the builtins would be taking way too much time.

[uditagarwal97]

Makes sense.

[aelovikov-intel]

Post commit failures on Intel Arc GPU:

Failed Tests (1):
  SYCL :: OneapiDeviceSelector/sub-devices.cpp

FAIL: SYCL :: OneapiDeviceSelector/sub-devices.cpp (1430 of 1873)
******************** TEST 'SYCL :: OneapiDeviceSelector/sub-devices.cpp' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 9
/__w/llvm/llvm/toolchain/bin//clang++   -fsycl -fsycl-targets=spir64 /__w/llvm/llvm/llvm/sycl/test-e2e/OneapiDeviceSelector/sub-devices.cpp -o /__w/llvm/llvm/build-e2e/OneapiDeviceSelector/Output/sub-devices.cpp.tmp.out
# executed command: /__w/llvm/llvm/toolchain/bin//clang++ -fsycl -fsycl-targets=spir64 /__w/llvm/llvm/llvm/sycl/test-e2e/OneapiDeviceSelector/sub-devices.cpp -o /__w/llvm/llvm/build-e2e/OneapiDeviceSelector/Output/sub-devices.cpp.tmp.out
# note: command had no output on stdout or stderr
# RUN: at line 14
env ONEAPI_DEVICE_SELECTOR="*:*.*"  /__w/llvm/llvm/build-e2e/OneapiDeviceSelector/Output/sub-devices.cpp.tmp.out
# executed command: env 'ONEAPI_DEVICE_SELECTOR=*:*.*' /__w/llvm/llvm/build-e2e/OneapiDeviceSelector/Output/sub-devices.cpp.tmp.out
# .---command stdout------------
# | 0 devices found.
# | Abort was called at 253 line in file:
# | ../../neo/level_zero/core/source/builtin/builtin_functions_lib_impl.cpp
# `-----------------------------
# .---command stderr------------
# | pure virtual method called
# | terminate called without an active exception
# `-----------------------------
# error: command failed with exit status: -6