Namedtuple return for solve, slogdet, sort, topk (#17093)
Summary:
More ops for https://github.com/pytorch/pytorch/issues/394. ~~Also need to rebase after landing #16186, because we need to update the whitelist of the new unit test added in #16186.~~
cc: ezyang
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17093
Differential Revision: D14620068
Pulled By: ezyang
fbshipit-source-id: deec5ffc9bf7624e0350c85392ee59789bad4237
