Replace SideEffectingVisitor with JavaVisitor
The new visitor is generic. We don't actually need the
old Object->Object visitor, this could just be the new
generic visitor but erased
Port language level checker
Move delegators
Remove old accept methods
Remove reduced adapter
Cleanup some visitor
Make ant wrapper replace old visitor completely
Doc
Add DeprecatedUntil700 annotation
Add top interface for visitors
Convert JSP visitors
Checkstyle
Fix java module
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