pytorch

be091950 - [const_fold] Keep around node.meta for replaced folded ops (#64782)

[const_fold] Keep around node.meta for replaced folded ops (#64782) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64782 Previously, get_attrs that were added to the graph did not retain node.meta after folding. Add such support, and improve coverage in general here. Test Plan: Added test coverage. Reviewed By: protonu Differential Revision: D30852704 fbshipit-source-id: ece87a61c69b2e68982964c6adc4dde14dae12c7