Populate __name__ for torch.nn.modules.utils.{_single,_pair,...} (#70459)
Summary:
This helps with debug printouts and python level graph analysis.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70459
Reviewed By: wconstab
Differential Revision: D33340032
Pulled By: jansel
fbshipit-source-id: 24d3fdf31e9e5e92bb47f0db30339cf373a1d4d4
