Op expr infer tensor meta #5064
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Signed-off-by: daquexian <daquexian566@gmail.com>
hjchen2
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…ow-Inc/oneflow into op_expr_infer_tensor_meta
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1）把张量shape/dtype/device等信息挪到新类TensorMeta上。
2）把StatefullLocalOpKernel上的shape/dtype的推导移到UserOpExpr里。
3）先构造MirroredTensor对象，然后用set_eager_blob_object设置其EagerBlobObject对象。更换之前的先EagerBlobObject然后MirroredTensor的逻辑。