[llvm] [flang][cuda] Fix unittest (PR #150136)

[Michael Kruse via llvm-commits]

================
@@ -79,6 +79,6 @@ TEST(AllocatableCUFTest, CUFSetAllocatorIndex) {
   // REAL(4), DEVICE, ALLOCATABLE :: a(:)
   auto a{createAllocatable(TypeCategory::Real, 4)};
   EXPECT_EQ((int)kDefaultAllocator, a->GetAllocIdx());
-  RTNAME(CUFSetAllocatorIndex)(*a, kDeviceAllocatorPos, __FILE__, __LINE__);
+  RTNAME(CUFSetAllocatorIndex)(a, kDeviceAllocatorPos, __FILE__, __LINE__);
----------------
Meinersbur wrote:

```suggestion
  RTNAME(CUFSetAllocatorIndex)(a.get(), kDeviceAllocatorPos, __FILE__, __LINE__);
```

```
../../../../_src/flang-rt/unittests/Runtime/CUDA/AllocatorCUF.cpp:82:3: error: no matching function for call to '_FortranACUFSetAllocatorIndex'
   82 |   RTNAME(CUFSetAllocatorIndex)(a, kDeviceAllocatorPos, __FILE__, __LINE__);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../_src/flang/include/flang/Runtime/entry-names.h:27:22: note: expanded from macro 'RTNAME'
   27 | #define RTNAME(name) NAME_WITH_PREFIX_AND_REVISION(_Fortran, A, name)
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../_src/flang/include/flang/Runtime/entry-names.h:26:3: note: expanded from macro 'NAME_WITH_PREFIX_AND_REVISION'
   26 |   prefix##revision##name
      |   ^~~~~~~~~~~~~~~~~~~~~~
<scratch space>:42:1: note: expanded from here
   42 | _FortranACUFSetAllocatorIndex
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../_src/flang/include/flang/Runtime/CUDA/descriptor.h:45:6: note: candidate function not viable: no known conversion from 'OwningPtr<Descriptor>' to 'Descriptor *' for 1st argument
   45 | void RTDECL(CUFSetAllocatorIndex)(Descriptor *, int index,
      |      ^                            ~~~~~~~~~~~~
../../../../_src/flang/include/flang/Runtime/entry-names.h:31:35: note: expanded from macro 'RTDECL'
   31 | #define RTDECL(name) RT_API_ATTRS RTNAME(name)
      |                                   ^
../../../../_src/flang/include/flang/Runtime/entry-names.h:27:22: note: expanded from macro 'RTNAME'
   27 | #define RTNAME(name) NAME_WITH_PREFIX_AND_REVISION(_Fortran, A, name)
      |                      ^
../../../../_src/flang/include/flang/Runtime/entry-names.h:26:3: note: expanded from macro 'NAME_WITH_PREFIX_AND_REVISION'
   26 |   prefix##revision##name
      |   ^
<scratch space>:16:1: note: expanded from here
   16 | _FortranACUFSetAllocatorIndex
      | ^
1 error generated.
```

My initial suggestion seems to have been wrong. `createAllocatable` returns an `OwningPtr<Descriptor>`, not a `Descriptor *`.

https://github.com/llvm/llvm-project/pull/150136