Just load the latest version of the port from http://mc.lukas-renggli.ch. The current state of the port looks promising:
This is what I got after evaluating:
MOPaintings classInheritanceOf: ParseNode.
MOPaintings systemComplexityOf: ParseNode
The graph shows the inheritance hierarchy for the class ParseNode. The width of the rectangles represents the number of instance variables, the height the number of methods. Take care of large rectangles on top of the graph - superclasses may define behavior not needed in every subclass. Specialization should be at the bottom of the inheritance tree ...