Back out "Revert D24269034: [fx] Refactor Tracer so that find_module and root args creation could be overridden by implementations" (#46573)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46573
Original commit changeset: 7dd709b585f8
ghstack-source-id: 114730143
Test Plan: Verified on circleci that previously broken test is fixed.
Reviewed By: zdevito
Differential Revision: D24413096
fbshipit-source-id: 439568c631c4556b8ed6af20fcaa4b1375e554cf
