Revert "Revert D29940705: [fx2trt] Dynamic shape inference support" (#62667)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62667
This reverts commit 053e11f1b39b50fcd7aa7cdd272f7775c7a5e1ba.
Test Plan: Imported from OSS
Reviewed By: malfet
Differential Revision: D30077961
Pulled By: IvanKobzarev
fbshipit-source-id: a7e76b2d2fa79e6c42a6a87f0a13f62642591fee
