Improve storage assertion of Tensor's enforce_invariants (#70380)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70380
A small change in `Tensor`'s `enforce_invariants` that addresses tensor types that don't use the regular storage mechanism.
ghstack-source-id: 147328303
Test Plan: Existing unit tests.
Reviewed By: zou3519
Differential Revision: D33304602
fbshipit-source-id: c8cc41ed38a3eec147f40fe1029fd059748c87b5
(cherry picked from commit da4e87f20b0ec8bb1003e519ed39ba32de62a89d)
