anchor.diff:       */
       @Override
       public Token nextToken() {
  -        
  +
           // Get the next token.
           Token next = super.nextToken();
  -        
  +
           if (next.getChannel() == Token.DEFAULT_CHANNEL) {
  -            // Keep track of the last token on the default channel.                                              
  +            // Keep track of the last token on the default channel.
               this.lastToken = next;
           }
  -        
  +
           return next;
       }
   
  
positive.code: /// ThrowStatement :
  ///     throw [no LineTerminator here] Expression ;
  throwStatement
   : Throw expressionSequence eos
   ;
  
  /// TryStatement :
  
negative.code: propertyNameAndValueList
   : propertyAssignment ( ',' propertyAssignment )*
   ;
  
  /// PropertyAssignment :
  ///     PropertyName : AssignmentExpression
  ///     get PropertyName ( ) { FunctionBody }
  