Move __node_is_field_or_noop() and __node_is_field_or_noop_or_not() to static methods
Move __node_is_field_or_noop() and __node_is_field_or_noop_or_not() to static methods

berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud