[warning] Fix TORCH_INTERNAL_ASSERT calls missing condition to check 1/x (#71711)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71711
This will fix a ton of broken asserts that should always fire but never actually fire.
All would have been caught with `-Wstring-conversion` warnings enabled.
Test Plan: CI Pass
Differential Revision: D33743605
fbshipit-source-id: 062641f9d5d02c6e317c5a286fd01017cf77237f
(cherry picked from commit 639b42e04b78c35389a1e3a12ae46901d7808e53)
