[JIT] Compute input sym shapes in partial eval graph (#68281)
Summary:
Needed for NNC dynamic shape fusion. Previously, when creating a partially evaluated graph for symbolic shape compute, if the input wasn't used, we wouldn't compute it, which led to failures when NNC expected this value to be passed in.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68281
Reviewed By: navahgar
Differential Revision: D32401365
Pulled By: eellison
fbshipit-source-id: 97a684e5f1faed5df77c8fd69f9623cdba0781f9
