anchor.diff:     | '{' balancedtokenseq '}'
      ;
   /*Declarators*/
  -   
  +
   
   initdeclaratorlist
      : initdeclarator
  
positive.code:    : '<<'
     ;
  
  rightShift
     :
     //'>>' Greater Greater
     ;
  
  LeftShiftAssign
     : '<<='
     ;
  
  rightShiftAssign
     :
     //'>>=' Greater Greater Assign
     ;
  
  Equal
  
negative.code: LineComment
     : '//' ~ [\r\n]* -> skip
     ;
  