Dequant => Swish => Quant Test case. (#41976)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/41976
Dequant => Swish => Quant Test case.
(Note: this ignores all push blocking failures!)
Test Plan: test_deq_swish_quant_nnpi.py.
Reviewed By: hyuen
Differential Revision: D22718593
fbshipit-source-id: 1cee503a27e339af6d89c819007511b90bb6610c
