Extend testAvailableArgTypes (#20374)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20374
This test case now also tests that the argument type works correctly in kernels that
- don't return outputs
- return multiple outputs
Reviewed By: li-roy
Differential Revision: D15298233
fbshipit-source-id: 82ab9d81b55b4f9fb34d66a155cc426af8592e25
