That solves the problem nicely for that one.  However, we run into the same issue with MAStringReader>>#visitElementDescription:.  Morever, there's actually a bug with this method, since #resignalAs: is expecting an instance of an exception, and you're passing in a class.

While I remember, a request to help with future ports:  Please avoid the use of {} to define arrays, as VisualWorks doesn't know how to deal with this.