Add TEST_NAMEDTENSOR flag to namedtensor ci (#25948)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25948
Previously, test/test_namedtensor.py is skipped if pytorch was not
compiled with BUILD_NAMEDTENSOR. Now, we skip test/test_namedtensor.py
if pytorch was not compiled with BUILD_NAMEDTENSOR or if
TEST_NAMEDTENSOR is not set.
This is done in preparation for turning on BUILD_NAMEDTENSOR=1 permanently;
at that point we will use TEST_NAMEDTENSOR to differentiate between the
named tensor ci and the regular ci.
Test Plan:
- [namedtensor ci] (and check that the named tensor tests are actually
running).
Differential Revision: D17300132
Pulled By: zou3519
fbshipit-source-id: 928f71f4d50445680b6ae1aa54b8857bc92e4d08
