anchor.diff:  
   // §3.10.5 String Literals
   
  -StringLiteral returns [LiteralExpression e]
  -	:	'"' c = StringCharacters? '"'
  -        {$e = new LiteralExpression($c, STRING);}
  +StringLiteral
  +	:	'"' StringCharacters? '"'
   	;
   
   fragment
  
positive.code:         {$e = new BinaryExpression($l, BinaryOperator.LESS_THAN_OR_EQUAL, $r);}
  	|	l = relationalExpression '>=' r = shiftExpression
          {$e = new BinaryExpression($l, BinaryOperator.GREATER_THAN_OR_EQUAL, $r);}
  	|	l = relationalExpression 'instanceof' r = referenceType
          {$e = new BinaryExpression($l, BinaryOperator.INSTANCE_OF, $r);}
  	;
  
  shiftExpression returns [BinaryExpression e]
  
negative.code: 
  singleStaticImportDeclaration returns [ImportStatement imp]
  	:	'import' 'static' t = typeName '.' id = Identifier ';'
          {$imp = new ImportStatement($t + '.' + $id.getText(), true, false);}
  	;
  
  staticImportOnDemandDeclaration returns [ImportStatement imp]
  