Improves aten_chunk conversion

[xadupre]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 69.25%. Comparing base (3f2f7d3) to head (ae1a0d6).

Files with missing lines	Patch %	Lines
onnxscript/function_libs/torch_lib/ops/core.py	50.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2434      +/-   ##
==========================================
+ Coverage   69.23%   69.25%   +0.02%     
==========================================
  Files         210      210              
  Lines       25389    25381       -8     
  Branches     2546     2546              
==========================================
+ Hits        17577    17578       +1     
+ Misses       6939     6929      -10     
- Partials      873      874       +1     

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[titaiwangms]

The original code references on torchscript symbolic function implementation. Could you explain why the op could work on this way? And could you update the code, because g does not make any sense.

[justinchuby]

Moving to a branch in the main repo for easier update