import freeze (#42319)
Summary:
torch.jit.freeze was broken with https://github.com/pytorch/pytorch/pull/41154/files#diff-9084cd464651f7fa1ff030d2edd9eb55R1
Pull Request resolved: https://github.com/pytorch/pytorch/pull/42319
Reviewed By: ZolotukhinM
Differential Revision: D22845476
Pulled By: eellison
fbshipit-source-id: bc9e50678d0e0ffca4062854ccc71bbef2e1a97b
