TestMathBits: test with neg and conj bit set (#68948)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68948
The case where both the negative and conjugate bits are set
isn't tested currently despite being handled explicitly by `copy`.
In theory this shouldn't matter because neg_bit is only used for real
values, but it does mean the code in copy is untested. So, this just
runs it with a single sample as a sanity check.
Test Plan: Imported from OSS
Reviewed By: jbschlosser
Differential Revision: D33064371
Pulled By: anjali411
fbshipit-source-id: e90c65e311507c4fc618ff74fecc4929599c4fa3
