sycl::info::device:: atomic_fence_scope_capabilities and atomic_fence_order_capabilities are not implemented

[kopylovanat]

In SYCL 2020 sycl::info::device::atomic_fence_scope_capabilities and sycl::info::device::atomic_fence_order_capabilities are introduced 4.6.4.2. Device information descriptors but not implemented.

To Reproduce

#include <sycl.hpp>

int main() {
  auto scope_capabilities = sycl::info::device::atomic_fence_scope_capabilities;
  auto order_capabilities = sycl::info::device::atomic_fence_order_capabilities;
}

To build:
clang++ -fsycl ./sample_capabilities.cpp -o sample

Output:

./sample_capabilities.cpp:4:49: error: no member named 'atomic_fence_scope_capabilities' in namespace 'sycl::info::device'
  auto scope_capabilities = sycl::info::device::atomic_fence_scope_capabilities;
                            ~~~~~~~~~~~~~~~~~~~~^
./sample_capabilities.cpp:5:49: error: no member named 'atomic_fence_order_capabilities' in namespace 'sycl::info::device'
  auto order_capabilities = sycl::info::device::atomic_fence_order_capabilities;
                            ~~~~~~~~~~~~~~~~~~~~^
2 errors generated.

Environment (please complete the following information):

• OS: Linux
• DPC++ version: clang version 16.0.0 (/netbatch/donb2243735_00/runDir/jenkins-dir/workspace/Tools_SH/SYCLOS_Nightly/RHEL/llvm.src/clang 188ef654129ec5f8ceeba0fc242f8ae2fcba7530)