create a c10 test suite (#71907)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71907
This allows us to refactor the c10 tests without anything downstream
needing to be concerned about it.
ghstack-source-id: 150235098
Test Plan: This ought to be a no-op, rely on CI to validate.
Reviewed By: malfet
Differential Revision: D33815403
fbshipit-source-id: d358d6e8b1b45b62cef73bdbfd9c7709a7075c42
(cherry picked from commit a554dbe55a28516c8db2287552194860be87f2f0)
