[UR][L0] Refactor IL code handling allowing future extension

[Maetveis]

Refactor the code to make it easier to add support for different IL formats (besides SPIR-V) in the future.
The only functional change is that SPIR-V binaries with invalid magic number are now rejected by returning UR_RESULT_ERROR_INVALID_BINARY from urProgramCreateWithIL.

[Maetveis]

I believe the CI failure (https://github.com/intel/llvm/actions/runs/14996606351/job/42133884358 ) is unrelated: #18416

[Maetveis]

I don't believe the CI failure is related:

[ RUN      ] urCommandBufferAppendMemBufferWriteRectTestWithParam.Success/Intel_R__oneAPI_Unified_Runtime_over_Level_Zero_V2__Intel_R__Data_Center_GPU_Max_1100_ID0ID______________________write_3D_with_offsets
Segmentation fault from GPU at 0x8057ffc01000, ctx_id: 1 (CCS) type: 0 (NotPresent), level: 0 (PTE), access: 0 (Read), banned: 1, aborting.
Segmentation fault from GPU at 0x8057ffc01000, ctx_id: 1 (CCS) type: 0 (NotPresent), level: 0 (PTE), access: 0 (Read), banned: 1, aborting.
Abort was called at 276 line in file:
../../neo/shared/source/os_interface/linux/drm_neo.cpp

[Maetveis]

ping @intel/unified-runtime-reviewers-level-zero

[pbalcer]

mostly lgtm, just a small nit.

[pbalcer]

I don't believe the CI failure is related:

[ RUN      ] urCommandBufferAppendMemBufferWriteRectTestWithParam.Success/Intel_R__oneAPI_Unified_Runtime_over_Level_Zero_V2__Intel_R__Data_Center_GPU_Max_1100_ID0ID______________________write_3D_with_offsets
Segmentation fault from GPU at 0x8057ffc01000, ctx_id: 1 (CCS) type: 0 (NotPresent), level: 0 (PTE), access: 0 (Read), banned: 1, aborting.
Segmentation fault from GPU at 0x8057ffc01000, ctx_id: 1 (CCS) type: 0 (NotPresent), level: 0 (PTE), access: 0 (Read), banned: 1, aborting.
Abort was called at 276 line in file:
../../neo/shared/source/os_interface/linux/drm_neo.cpp

This is a known driver bug.

[Maetveis]

@intel/llvm-gatekeepers please merge :)

CI failure is unrelated: #18544
I believe pre-commit failure is also unrelated, looks to be an infrastructure issue:

lib/fallback-imf-bf16-host.o /workspace/SYCL_CI/intel/Build_PR_RHEL/llvm.obj/lib/fallback-imf-bf16-host.o 

[2025-05-19T14:12:17.306Z] cd /workspace/SYCL_CI/intel/Build_PR_RHEL/llvm.obj/tools/libdevice && /workspace/SYCL_CI/intel/Build_PR_RHEL/llvm.obj/bin/clang-21 -Wno-sycl-strict -Wno-undefined-internal -sycl-std=2020 --target=x86_64-unknown-linux-gnu --gcc-install-dir=<redacted> -c --target=x86_64-unknown-linux-gnu -D__LIBDEVICE_HOST_IMPL__ --gcc-install-dir=<redacted> -fPIC -I /workspace/SYCL_CI/intel/Build_PR_RHEL/llvm.src/libdevice/imf /workspace/SYCL_CI/intel/Build_PR_RHEL/llvm.obj/./lib/libdevice/imf_bf16_fallback.cpp -o /workspace/SYCL_CI/intel/Build_PR_RHEL/llvm.obj/./lib/fallback-imf-bf16-host.o

[2025-05-19T14:12:17.306Z] clang-21: error: '<redacted>' does not contain a GCC installation