[gen_operators_yaml] add arguments to control include_all_overloads (#108396)
Summary:
In SelectiveBuildOperator, we can specify argument `include_all_overloads`. If True, all overloaded operators (for example, `aten::to.dtype_layout`, `aten::to.prim_Device"` are considered as overloaded operators of `aten::to`), will be built and linked to the final binary. This can significantly increases the final binary size, which could be a deal breaker for on-device deployment.
In this diff, we make back-compatible changes to add new arguments `--not-include-all-overloads-static-root-ops` and `--not-include-all-overloads-closure-ops`. When they are set, we set `include_all_overloads` flag to False for static root ops and closure ops, and rely on code analyzer to decide the actual used overloaded operator.
Test Plan:
- unit test
```
buck test //xplat/caffe2/tools:gen_operators_yaml_test
```
- See test plan in D48771544 where we reduce the shared lib file `libmrengine.lib` from 16653072 bytes to 13686032 bytes.
- See detailed document: https://fburl.com/gdoc/mc93h6kb
Reviewed By: larryliu0820
Differential Revision: D48772302
Pull Request resolved: https://github.com/pytorch/pytorch/pull/108396
Approved by: https://github.com/larryliu0820
