[jit] gtest-ify test_alias_analysis.cpp (#45018)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45018
Now that https://github.com/pytorch/pytorch/pull/44795 has landed, we
can convert the bulk of our cpp tests to use gtest APIs. Eventually
we'll want to get rid of our weird harness for cpp tests entirely in
favor of using regular gtest everywhere. This PR demonstrates some of
the benefits of this approach:
1. You don't need to register your test twice (once to define it, once
in tests.h).
2. Consequently, it's easier to have many individual test cases.
Failures can be reported independently (rather than having huge
functions to test entire modules.
3. Some nicer testing APIs, notably test fixtures.
Test Plan: Imported from OSS
Reviewed By: ZolotukhinM
Differential Revision: D23802297
Pulled By: suo
fbshipit-source-id: 774255da7716294ac573747dcd5e106e5fe3ac8f
