[SPIR-V] Reland SPV_KHR_untyped_pointers commits#15507

Merged

martygrant merged 3 commits intointel:syclfrom

vmaksimo:reland-untyped-pointer-commits

Oct 2, 2024

Commits on Sep 25, 2024

SPV_KHR_untyped_pointers - implement OpTypeUntypedPointerKHR (#2687)
vmaksimo
committed
SPV_KHR_untyped_pointers - implement OpUntypedVariableKHR (#2709)
vmaksimo
committed
Do not use SPV_KHR_untyped_pointers extension in the tests yet
vmaksimo
committed