/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion Every function includes a formal parameter list, 
 * which consists of a list of required parameters, followed by any optional parameters. 
 * The optional parameters may be specified either as a set of named parameters
 * or as a list of positional parameters, but not both.
 * formalParameterList:
 *   '(' ')' |
 *   '(' normalFormalParameters ( ',' optionalFormalParameters)? ')' |
 *   (optionalFormalParameters)
 * ;
 * normalFormalParameters:
 *   normalFormalParameter (', ' normalFormalParameter)*
 * ;
 * optionalFormalParameters:
 *   optionalPositionalFormalParameters |
 *    namedFormalParameters
 *  ;
 *  optionalPositionalFormalParameters:
 *    `[' defaultFormalParameter (`, ' defaultFormalParameter)* `]'
 *  ;
 *  namedFormalParameters:
 *    `{' defaultNamedParameter (`, ' defaultNamedParameter)* `}'
 *  ;
 * @description Checks that the optional positional parameter list cannot end with a comma.
 * @compile-error
 * @author rodionov
 * @reviewer kaigorodov
 */

void f([var p1, ]) {}

main () {
  try {
    f(1);
  } catch(x){}
}