message: Adding Shape inference functions to outfeed enqueue ops.
diff: @@ -26,6 +26,7 @@ REGISTER_OP("OutfeedEnqueue")
  .Input("input: dtype")
  .Attr("dtype: type")
  .SetIsStateful()
  + .SetShapeFn(shape_inference::NoOutputs)
  .Doc(R"doc(
  An op which emits a single Tensor value from an XLA computation.
  @@ -36,6 +37,7 @@ REGISTER_OP("OutfeedEnqueueTuple")
  .Input("inputs: dtypes")
  .Attr("dtypes: list(type)")
  .SetIsStateful()
  + .SetShapeFn(shape_inference::NoOutputs)
  .Doc(R"doc(
  An op which emits multiple Tensor values from an XLA computation.
  