Modified _findClassWarnings() in warn.py to iterate over python.NEW_STYLE_CLASS_METHODS to check for usage of the new-style class methods in old-style classes.
Modified _findClassWarnings() in warn.py to iterate over python.NEW_STYLE_CLASS_METHODS to check for usage of the new-style class methods in old-style classes.

smspillaz/pychecker,smspillaz/pychecker,smspillaz/pychecker