pytorch

ba541653 - Make sure that exit code is propagated from Child to parent process (#81408)

Make sure that exit code is propagated from Child to parent process (#81408) Summary: Refractor error_handler.py Test Plan: In the previous diff, I added a unit test which showcases the failed case. With this diff, we can see that the override works as expected. Also added few additional tests for test coverage Reviewed By: wilson100hong Differential Revision: D37677402 Pull Request resolved: https://github.com/pytorch/pytorch/pull/81408 Approved by: https://github.com/d4l3k