Port and integrate the irregexp engine from V8

tools/test.dart

 #!/usr/bin/env dart
 // Copyright (c) 2013, 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.
 
 /**
  * This file is the entrypoint of the dart test suite.  This suite is used
  * to test:
  *
  *     1. the dart vm
@@ skipping 42 matching lines @@
     new Path('samples-dev'),
     new Path('tests/benchmark_smoke'),
     new Path('tests/chrome'),
     new Path('tests/compiler/dart2js'),
     new Path('tests/compiler/dart2js_extra'),
     new Path('tests/compiler/dart2js_native'),
     new Path('tests/corelib'),
     new Path('tests/html'),
     new Path('tests/isolate'),
     new Path('tests/language'),
+    new Path('tests/language/regex'),

[ricow1, 2014/09/05 05:47:41]

You don't need this, we automatically recurse into the subdirectories. You can
validate this by running:
tools/test.py -mrelease -cnone -rvm language/reg -v
and see that your test is run

[jgruber1, 2014/09/05 06:17:26]

Good to know, thanks. Done.

     new Path('tests/lib'),
     new Path('tests/standalone'),
     new Path('tests/try'),
     new Path('tests/utils'),
     new Path('utils/tests/css'),
     new Path('utils/tests/peg'),
     new Path('sdk/lib/_internal/pub'),
 ];
 
 void testConfigurations(List<Map> configurations) {
@@ skipping 238 matching lines @@
   TestUtils.setDartDirUri(Platform.script.resolve('..'));
   deleteTemporaryDartDirectories().then((_) {
     var optionsParser = new TestOptionsParser();
     var configurations = optionsParser.parse(arguments);
     if (configurations != null && configurations.length > 0) {
       testConfigurations(configurations);
     }
   });
 }