Add missing tensor header (#53489)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/53489
It appears that D26675801 (https://github.com/pytorch/pytorch/commit/1fe6a6507e6a38534f0dc6265fd44cd26c80e5b0) broke Glow builds (and probably other instals) with the inclusion of the python_arg_parser include. That dep lives in a directory of its own and was not included in the setup.py.
Test Plan: OSS tests should catch this.
Reviewed By: ngimel
Differential Revision: D26878180
fbshipit-source-id: 70981340226a9681bb9d5420db56abba75e7f0a5
