Tool to modify torchlib overload names via libcst

[BowenBao]

Stack from ghstack (oldest at bottom):

• -> Tool to modify torchlib overload names via libcst #920
• Add overlooked overload information on torchlib functions #919

[justinchuby]

Possible to add all overloads for these ops? I imagine x for x in torch.ops.aten.add.overloads() if "out" not in x etc.

[BowenBao]

Yes, the tool allows such usage.

Frankly this PR is libcst exercise lol. I think the only useful scenario for this tool is when we have a large batch of missing overloads that we know would work, typically from model benchmark.

[codecov]

Codecov Report

Merging #920 (572112b) into gh/BowenBao/7/base (3521a1a) will not change coverage.
The diff coverage is n/a.

@@                 Coverage Diff                 @@
##           gh/BowenBao/7/base     #920   +/-   ##
===================================================
  Coverage               76.81%   76.81%           
===================================================
  Files                     112      112           
  Lines                   13547    13547           
  Branches                 1377     1377           
===================================================
  Hits                    10406    10406           
  Misses                   2798     2798           
  Partials                  343      343           

Files Changed	Coverage Δ
onnxscript/function_libs/torch_lib/registration.py	82.14% <ø> (ø)

[justinchuby]

So the function def is visited before the decorator call?

[BowenBao]

I think so, from cst tree level, decorators are a part of the function.

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