[NFCI] Refactor `detail::Convert[To|From]OpenCLType` #14564

Job	Run time
detect_changes / Decide which tests could be affected by the changes	6s
build / Build + LIT	14m 17s
test-perf	0s
test (AMD/HIP, ["Linux", "amdgpu"], -u 1001 --device=/dev/dri --device=/dev/kfd, hip:gpu) / AMD/HIP	27m 6s
run_prebuilt_e2e_tests (Dev IGC on Intel Ponte Vecchio GPU, ["Linux", "pvc"], ghcr.io/intel/llvm/... / Dev IGC on Intel Ponte Vecchio GPU	7m 29s
run_prebuilt_e2e_tests (E2E tests on Intel Ponte Vecchio GPU, ["Linux", "pvc"], -u 1001 --device=... / E2E tests on Intel Ponte Vecchio GPU	5m 37s
run_prebuilt_e2e_tests (GEN 12 Integrated, ["Linux", "gen12"], -u 1001 --device=/dev/dri -v /dev/... / GEN 12 Integrated	11m 12s
run_prebuilt_e2e_tests (Intel Arc A-Series Graphics, ["Linux", "arc"], -u 1001 --device=/dev/dri ... / Intel Arc A-Series Graphics	4m 23s
run_prebuilt_e2e_tests (E2E tests with dev igc on Intel Arc A-Series Graphics, ["Linux", "arc"], ... / E2E tests with dev igc on Intel Arc A-Series Graphics	4m 22s
run_prebuilt_e2e_tests (Intel Battlemage Graphics, ["Linux", "bmg"], -u 1001 --device=/dev/dri -v... / Intel Battlemage Graphics	3m 2s
run_prebuilt_e2e_tests (NVIDIA/CUDA, ["Linux", "cuda"], -u 1001 --gpus all --cap-add SYS_ADMIN, c... / NVIDIA/CUDA	4m 55s
	1h 22m 29s

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