[antlr-interest] gunit with custom AST nodes

[Michael Pasdziernik]

Hi,
I have some problems using gUnit with a custom tree class. I have tried to 
patch gunit as described in the corresponding thread from march 2008 but
with no success. The error I get is:

java.lang.ClassCastException: org.antlr.runtime.tree.CommonTree cannot be cast 
to ast.AstTree

thanks
Michael