pytorch

e2eb0cb1 - Adds arccosh alias for acosh and adds an alias consistency test (#43107)

Adds arccosh alias for acosh and adds an alias consistency test (#43107) Summary: This adds the torch.arccosh alias and updates alias testing to validate the consistency of the aliased and original operations. The alias testing is also updated to run on CPU and CUDA, which revealed a memory leak when tracing (see https://github.com/pytorch/pytorch/issues/43119). Pull Request resolved: https://github.com/pytorch/pytorch/pull/43107 Reviewed By: ngimel Differential Revision: D23156472 Pulled By: mruberry fbshipit-source-id: 6155fac7954fcc49b95e7c72ed917c85e0eabfcd