[SYCL-MLIR] Opaque pointer handling

[whitneywhtsang]

1. Add back 02f9cf9, which was reverted in [SYCL-MLIR] Merge from intel/llvm sycl branch #8600.
2. Add back 130466e, which was reverted in [SYCL-MLIR] Merge from intel/llvm sycl branch #8774.
3. Add back 946f803, which was reverted in [SYCL-MLIR] Merge from intel/llvm sycl branch #8849.
4. Revert 479c2cc, added in [SYCL-MLIR] Merge from intel/llvm sycl branch #10724.
5. Modify test cases to use opaque pointers.
6. Performance testing with using opaque pointers.
7. Implementation may need to changed, e.g., TBAA for SYCL operations.

[whitneywhtsang]

Remaining E2E test cases to handle:

  SYCL :: Plugin/enqueue-arg-order-image.cpp
  SYCL :: KernelFusion/work_group_barrier.cpp
  SYCL :: Plugin/interop-level-zero-image-ownership.cpp
  SYCL :: Plugin/interop-level-zero-image.cpp