Fix exception chaining in `test/` (#44193)
Summary:
## Motivation
This PR fixes https://github.com/pytorch/pytorch/issues/43770 and is the continuation of https://github.com/pytorch/pytorch/issues/43836.
## Description of the change
This PR fixes exception chaining only in files under `test/` where appropriate.
To fix exception chaining, I used either:
1. `raise new_exception from old_exception` where `new_exception` itself seems not descriptive enough to debug or `old_exception` delivers valuable information.
2. `raise new_exception from None` where raising both of `new_exception` and `old_exception` seems a bit noisy and redundant.
## List of lines containing `raise` in `except` clause:
I wrote [this simple script](https://gist.github.com/akihironitta/4223c1b32404b36c1b349d70c4c93b4d) using [ast](https://docs.python.org/3.8/library/ast.html#module-ast) to list lines where `raise`ing in `except` clause.
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_cpp_extensions_aot.py#L16
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit.py#L2503
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/model_defs/word_language_model.py#L22
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/verify.py#L73
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/verify.py#L110
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/test_verify.py#L31
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L255
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L2992
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L3025
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L3712
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_distributed.py#L3180
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_distributed.py#L3198
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_data_parallel.py#L752
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_data_parallel.py#L776
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_type_hints.py#L151
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser.py#L771
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser.py#L773
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dispatch.py#L105
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_distributions.py#L4738
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_nn.py#L9824
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_namedtensor.py#L843
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser_te.py#L875
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser_te.py#L877
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L31
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L43
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L365
- [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L391
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44193
Reviewed By: albanD
Differential Revision: D23681529
Pulled By: malfet
fbshipit-source-id: 7c2256ff17334625081137b35baeb816c1e53e0b
