[nnc] Rename IRSimplifierBase with PolynomialBase (#60686)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/60686
Test Plan: Imported from OSS
Reviewed By: navahgar, soulitzer
Differential Revision: D29373316
Pulled By: huiguoo
fbshipit-source-id: bd44bff60455076d1c5291273989e9939a428f9a
