generate tests based on op metadata (#21432)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21432
This diff introduce a new interface to generate tests based on the metadata of operators.
Reviewed By: ajauhri
Differential Revision: D15675542
fbshipit-source-id: ba60e803ea553d8b9eb6cb2bcdc6a0368ef62b1c
