Add missing TORCH_CUDA_API annotation to throw_nccl_error (#31157)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31157
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D19262583
Pulled By: ezyang
fbshipit-source-id: 8fb87b41ab53770329b38e1e2fe679fb868fee12
