anchor.diff:      |   tryBlock
   
       // synchronize a statement
  -    |   "synchronized"^ LPAREN! sce=strictContextExpression[true] RPAREN! nlsWarn! compoundStatement
  +    |   "synchronized"^ LPAREN! sce=strictContextExpression[false] RPAREN! nlsWarn! compoundStatement
   
   
       /*OBS*
  
positive.code:     |   importStatement
  
      // switch/case statement
      |   "switch"^ LPAREN! sce=strictContextExpression[true] RPAREN! nlsWarn! LCURLY! nls!
          ( casesGroup )*
          RCURLY!
  
  
negative.code:     |   forStatement
  
      // While statement
      |   "while"^ LPAREN! sce=strictContextExpression[false] RPAREN! nlsWarn!
          (SEMI | compatibleBodyStatement)
  
      /*OBS* no do-while statement in Groovy (too ambiguous)
  