[Static Runtime] Ensure that unittests only use out variants or native ops (#62335)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62335
This change ensures that unittests only use out variants or native ops.
- Our unittests currently assume that a graph fed to the static runtime correctly replaces an interpreter op for its corresponding out variant / native op, but it's not checked by the unittest. This change ensures that.
- We relied on manual inspection of log messages to see if an out variant is used for a specific workload even for unittesting. This change frees us from doing that.
- `aten::add` is excluded from this check since it's only enabled for an internal workload. Also some unittests are excluded by using `expect_interpreter_op = true` since they are written to use interpreter ops by design.
Test Plan: Ran `buck run //caffe2/benchmarks/static_runtime:static_runtime_cpptest` successfully.
Reviewed By: mikeiovine, hlu1
Differential Revision: D29952381
fbshipit-source-id: e60e70b80ccf45e91c6654b4ad53f92ffd5ab702
