Fix internal assert custom function when input does not require grad (#72008)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72008
Fixes #71119
Technically BC-breaking because when an input does not require grad, previously it was returned as-is instead of a view because it didn't need to. Now we will also return a view in that case (whether or not forward AD runs).
Test Plan: Imported from OSS
Reviewed By: albanD
Differential Revision: D33859553
Pulled By: soulitzer
fbshipit-source-id: 81b3fa371f4c0904630878500aa190492c562367
(cherry picked from commit ee74bc82342e2a42577101cb1aef43330a028a89)
