[llvm] [OFFLOAD] Add missing interop API for libomptarget migration (PR #172951)

[via llvm-commits]

================
@@ -1214,5 +1214,58 @@ Error olLaunchHostFunction_impl(ol_queue_handle_t Queue,
                                                 Queue->AsyncInfo);
 }
 
+Error olCreateInterop_impl(ol_device_handle_t Device, int32_t InteropContext, void *InteropSpec,
+                           void **Interop) {
+  auto Rc = Device->Device->createInterop(InteropContext, 
----------------
fineg74 wrote:

There is a layer that implements interop functionality in the libomptarget. These are the low level operations that are device dependent (i.e. createInterop in AMD has different implementation from NVIDIA etc.) and part of GenericDeviceTy class. I am not sure how to implement it without adding new liboffload API as the main point of migration of libomptarget to liboffload is to avoid using low level abstractions there and use liboffload instead

https://github.com/llvm/llvm-project/pull/172951