xla

11511b35 - run the new tests under `test/nn` (#3955)

run the new tests under `test/nn` (#3955) * run the new tests * add torch_pin * run test only for dropout * update skip * make yapf happy * Delete .torch_pin Co-authored-by: JackCaoG <59073027+JackCaoG@users.noreply.github.com>