[ONNX] Enable true_divide scripting export with ONNX shape inference (#43991)
Summary:
Fixes the `true_divide` symbolic to cast tensors correctly.
The logic depends on knowing input types at export time, which is a known gap for exporting scripted modules. On that end we are improving exporter by enabling ONNX shape inference https://github.com/pytorch/pytorch/issues/40628, and starting to increase coverage for scripting support.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43991
Reviewed By: mruberry
Differential Revision: D23674614
Pulled By: bzinodev
fbshipit-source-id: 1b1b85340eef641f664a14c4888781389c886a8b
