message: Fix a non-backward compatible change in cr/277826082 where BoundedTensorSpec became no longer compatible with with a TensorSpec.
diff: @@ -76,7 +76,7 @@ class DenseSpec(type_spec.TypeSpec):
  return self._name
  def is_compatible_with(self, spec_or_value):
  - return (isinstance(spec_or_value, (type(self), self.value_type)) and
  + return (isinstance(spec_or_value, (DenseSpec, self.value_type)) and
  self._dtype.is_compatible_with(spec_or_value.dtype) and
  self._shape.is_compatible_with(spec_or_value.shape))
  