pytorch

e6eb1730 - Revert D16184799: [jit] make CompilationUnit::define return defined functions

Revert D16184799: [jit] make CompilationUnit::define return defined functions Differential Revision: D16184799 Original commit changeset: 9f77a7ca2223 fbshipit-source-id: a0e08220d924a6ca55bf2f1f77754553d0133595