hacky_wrapper_for_legacy_signatures reorders out arguments (#48911)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48911
This enables us to use hacky_wrapper_for_legacy_signatures for ops with out arguments so they can use templated unboxing logic without having to be rewritten.
This only actually enables it for one op as a proof of concept. There will be a separate PR enabling it for more ops.
ghstack-source-id: 118379659
Test Plan: waitforsandcastle
Reviewed By: bhosmer
Differential Revision: D25363336
fbshipit-source-id: da075d2cc58814f886a25d52652511dbbe990cec
