Convert type comments to annotations in caffe2/test/onnx/ (#72632)
Summary:
Convert type comments in caffe2/test/onnx/
Produced by running:
```
python -m libcst.tool codemod convert_type_comments.ConvertTypeComment caffe2/test/onnx/
```
from the parent directory.
One question is whether we actually want to scrap type comment here. There are some jit tests where we're explicitly aiming to validate py2-style type comments; I don't think this test is one of those cases but if I'm misreading it I can close the PR.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72632
Reviewed By: msaroufim
Differential Revision: D34112196
Pulled By: stroxler
fbshipit-source-id: a3d18cb36e7eeb4af9be781e98776bf24b96b854
(cherry picked from commit 9301019e510e0891d48f9f2d536c251c1c5d8c02)