[ONNX] Run ONNX tests as part of standard run_test script (#99215)
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### <samp>๐ค Generated by Copilot at dcbf7e2</samp>
### Summary
๐๐งน๐ฉ
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1. ๐ for simplifying the `./scripts/onnx/test.sh` script
2. ๐งน for refactoring the `test/onnx/dynamo/test_exporter_api.py` file
3. ๐ฉ for adding the `--onnx` flag to `test/run_test.py` and updating the `TESTS` list
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This pull request improves the ONNX testing infrastructure in PyTorch by refactoring the test code, normalizing the scope names, adding a flag to run only the ONNX tests, and simplifying the test script.
> _To export PyTorch models to ONNX_
> _We refactored some scripts and contexts_
> _We used `common_utils`_
> _And normalized the scopes_
> _And added a flag to run the tests_
### Walkthrough
* Simplify `./scripts/onnx/test.sh` to use `run_test.py` with `--onnx` flag instead of `pytest` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-0017f5b22ae1329acb0f54af8d9811c9b6180a72dac70d7a5b89d7c23c958198L44-R46))
* Remove `onnx` test from `TESTS` list in `test/run_test.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7L127-R127)). Replace with `onnx_caffe2`.
* Add `onnx/test_pytorch_onnx_onnxruntime_cuda` and `onnx/test_models` tests to `blocklisted_tests` list in `test/run_test.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7R154-R155))
* Add `ONNX_SERIAL_LIST` list to `test/run_test.py` to specify ONNX tests that must run serially ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7R296-R301))
* Add `ONNX_TESTS` list to `test/run_test.py` to store all ONNX tests ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7R370))
* Add `--onnx` flag to `parse_args` function in `test/run_test.py` to run only ONNX tests ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7R920-R928))
* Include `ONNX_SERIAL_LIST` in `must_serial` function in `test/run_test.py` to run ONNX tests serially or parallelly based on memory usage ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7R1120))
* Filter selected tests based on `--onnx` flag in `get_selected_tests` function in `test/run_test.py` to exclude non-ONNX tests ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-e72503c9e3e8766e2d1bacf3fad7b88aa166e0e90a7e103e7df99357a35df8d7R1158-R1165))
### Other minor changes to accommodate this change
* Replace `unittest` module with `common_utils.TestCase` in `test/onnx/dynamo/test_exporter_api.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L4), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L29-R28), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L71-R70), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L147-R146))
* Import `TemporaryFileName` class from `common_utils` in `test/onnx/dynamo/test_exporter_api.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L19-R18))
* Use `common_utils.TemporaryFileName` instead of `TemporaryFileName` in `TestDynamoExportAPI` class in `test/onnx/dynamo/test_exporter_api.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L92-R91), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L110-R109), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L129-R128))
* Use `common_utils.run_tests` instead of `unittest.main` in `test/onnx/dynamo/test_exporter_api.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-4545f0c15c73ebe90a875e9bee6c5ca4b6b92fb1ed0ec5560d1568e0f6339d02L155-R154))
* Add `re` module to `test/onnx/test_utility_funs.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7R6))
* Add `_remove_test_environment_prefix_from_scope_name` function to `test/onnx/test_utility_funs.py` to normalize scope names of ONNX nodes ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7R32-R58))
* Use `_remove_test_environment_prefix_from_scope_name` function to compare scope names of ONNX nodes in `TestUtilityFuns` class in `test/onnx/test_utility_funs.py` ([link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7L1099-R1133), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7L1119-R1152), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7L1170-R1188), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7L1181-R1199), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7L1220-R1239), [link](https://github.com/pytorch/pytorch/pull/99215/files?diff=unified&w=0#diff-da71d2c81c9dc7ac0c47ff086fded82e4edcb67ba0cd3d8b5c983d7467343bc7L1235-R1258))
Fixes #98626
Pull Request resolved: https://github.com/pytorch/pytorch/pull/99215
Approved by: https://github.com/huydhn, https://github.com/titaiwangms