message: Make unsupported type error message clearer.
  Currently for types like "resource" the error message isn't clear that it's referring to the type "resource" as opposed to being about an unsupported "DataTypeToPrimitiveType resource"
diff: @@ -75,8 +75,8 @@ Status DataTypeToPrimitiveType(DataType data_type, xla::PrimitiveType* type) {
  return Status::OK();
  default:
  return errors::InvalidArgument(
  - "Unsupported type in DataTypeToPrimitiveType ",
  - DataTypeString(data_type));
  + "Unsupported type in DataTypeToPrimitiveType: '",
  + DataTypeString(data_type), "'");
  }
  }
  