Fix internal assert location in custom Function binding (#59301)
Summary:
For facebook employees, this fix some internal failures from https://www.internalfb.com/tasks/?t=92100671
This was not a problem before https://github.com/pytorch/pytorch/pull/58271 because these cycles used to just be leaked (so nothing was cleared/dealloced).
Now that we properly clean up these cycles, we have to fix the assert in the clear.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59301
Reviewed By: jbschlosser
Differential Revision: D28841564
Pulled By: albanD
fbshipit-source-id: e2ec51f6abf44c4e3a83c293e90352295a43ba37
