message: In grappler ConstantFolding:EvaluateOneNode, improve error message
  if the TensorProto cannot be parsed into a Tensor.
  Includes the name of the node that failed and the TensorShape.
  Otherwise, all you get is a malloc failure and a CHECK that
  doesn't tell you where the problem was.
diff: @@ -1338,7 +1338,9 @@ Status ConstantFolding::EvaluateOneFoldable(const NodeDef& node,
  TF_RETURN_IF_ERROR(CheckAttrExists(*input_node, "value"));
  const TensorProto& raw_val = input_node->attr().at("value").tensor();
  Tensor* value = new Tensor(raw_val.dtype(), raw_val.tensor_shape());
  - CHECK(value->FromProto(raw_val));
  + CHECK(value->FromProto(raw_val))
  + << "Unable to make Tensor from proto for " << node.name()
  + << " with shape " << raw_val.tensor_shape().DebugString();
  inputs.emplace_back(value);
  total_inputs_size += value->TotalBytes();
  }
  