pytorch

86c96542 - Update optimize_for_mobile to preserve node's debug information (#63106)

Update optimize_for_mobile to preserve node's debug information (#63106) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63106 Propagate debug info to the re-written nodes in the graph. Test Plan: - Clone open source repo and build - ``` python3 test/test_jit.py TestOptimizeForMobilePreserveDebugInfo ``` - Tests pass Reviewed By: kimishpatel Differential Revision: D28654659 fbshipit-source-id: 2d7c87f2fb95a3be53246375f35639bbd97c237e