// 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 A script is a library whose exported namespace includes a
 * top-level function main().
 *
 * libraryDefinition:
 *   scriptTag? libraryName? importOrImport* partDirective* topLevelDefinition*
 * ;
 * topLevelDefinition:
 *   classDefinition |
 *   enumType |
 *   typeAlias |
 *   external? functionSignature ‘;’ |
 *   external? getterSignature ‘;’ |
 *   external? setterSignature ‘;’ |
 *   functionSignature functionBody |
 *   returnType? get identifier functionBody |
 *   returnType? set identifier formalParameterList functionBody |
 *   (final | const) type? staticFinalDeclarationList ‘;’ |
 *   variableDeclaration ‘;’
 * ;
 * @description Checks that it is a compile-time error when a return statement
 * is used in place of a top level definition in a script.
 * @compile-error
 * @author msyabro
 */

return null;

main() {
}