[antlr-interest] anybody get bitten by ANTLR's AST interface requirement

[Terence Parr]

Howdy, i'm working on tree parser error recovery over next few  
days...my efforts are hampered by my earlier decision to not require  
nodes to answer any interface...i use an adaptor for construction and  
navigation.  No biggie.  However, it sure would be nice to say "all  
antlr trees satisfy the Tree" interface.  This is what v2 does (AST  
interface).  Was this a huge problem for anyone?

Ter