pytorch

79693bb8 - Use linecache.lazycache to cache generated code. (#63453)

Use linecache.lazycache to cache generated code. (#63453) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63453 Instead of patching linecache.getlines, use linecache.lazycache and parts of the loader protocol described in PEP-302 Test Plan: python3 test/test_fx.py Imported from OSS Reviewed By: suo Differential Revision: D30388176 fbshipit-source-id: 92933711ecf3a21a07e1d6b0d1185ab0efd8341c