PyLong_{As/From}{Long/UnsignedLong} lint checks (#49280)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/45581
Pull Request resolved: https://github.com/pytorch/pytorch/pull/49280
Reviewed By: mruberry
Differential Revision: D25592330
Pulled By: ezyang
fbshipit-source-id: 5c16d6aed88ad1feaa7f129b4cd44c0561be2de2
