Assert against using Operator methods not supported when exporting it to c10, part 2 (#17946)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17946
Some of these are probably implementable for exported operators,
but aren't implemented yet and for now it's better to assert than to just return wrong results.
Reviewed By: ezyang
Differential Revision: D14430749
fbshipit-source-id: 2b0037a9ed227a22aa7376a90e6d3d09d3e04707
