add pass for onnx scalar type conversion (#24378)
Summary:
This pass tries to resolve scalar type mismatch issues between input tensors introduced by the implicit type conversions on scalars.
e.g. https://github.com/pytorch/pytorch/issues/23724
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24378
Reviewed By: hl475
Differential Revision: D17088682
Pulled By: houseroad
fbshipit-source-id: 3de710f70c3b70b9f76fd36a7c4c76e168dbc756
