Add ONNX Export Support to empty and empty_like (#24166)
Summary:
Empty and empty_like return uninitialized tensors with specific sizes.
The values in the tensor cannot be predicted, that's why tests in test_pytorch_onnx_onnxruntime.py and test_pytorch_onnx_caffe2.py are not added.
The tests in test_operators.py verify the onnx graph and output shape.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24166
Differential Revision: D16831571
Pulled By: bddppq
fbshipit-source-id: b2500f36ced4735da9a8418d87a39e145b74f63a
