Add skipXLA and expectedFailureXLA decorator (#66857)
Summary:
Add skipXLA and expectedFailureXLA decorator and relevant test.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66857
Reviewed By: ngimel
Differential Revision: D32039856
Pulled By: mruberry
fbshipit-source-id: 3c99d5e06c1c7684d1f798c11c783bd6ebea9899
