Moves angle/abs test to test_torch (#39154)
Summary:
Moves test (per request).
Pull Request resolved: https://github.com/pytorch/pytorch/pull/39154
Differential Revision: D21769706
Pulled By: mruberry
fbshipit-source-id: a09d0d0a47fbcf8f0e798d57230f2fe6a9ebf6b9
