Reapply "Port regexp tests from V8 to Dart."

tests/corelib/regexp/standalones_test.dart

Index: tests/corelib/regexp/standalones_test.dart
diff --git a/tests/corelib/regexp/standalones_test.dart b/tests/corelib/regexp/standalones_test.dart
new file mode 100644
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+++ b/tests/corelib/regexp/standalones_test.dart
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+// Copyright (c) 2014, the Dart project authors. All rights reserved.
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import 'v8_regexp_utils.dart';
+import 'package:expect/expect.dart';
+
+void main() {
+  /* Many of the Mozilla regexp tests used 'toSource' to test their
+  * results.  Since we don't currently support toSource, those tests
+  * are disabled and standalone versions are included here.
+  */
+
+  // Tests from ecma_3/RegExp/regress-78156.js
+  var string = 'aaa\n789\r\nccc\r\n345';
+  var pattern = new RegExp(r"^\d", multiLine: true);
+  var result = pattern.allMatches(string).toList();
+  assertEquals(2, result.length, "1");
+  assertEquals('7', result[0].group(0), "2");
+  assertEquals('3', result[1].group(0), "3");
+
+  pattern = new RegExp(r"\d$", multiLine: true);
+  result = pattern.allMatches(string).toList();
+  assertEquals(2, result.length, "4");
+  assertEquals('9', result[0].group(0), "5");
+  assertEquals('5', result[1].group(0), "6");
+
+  string = 'aaa\n789\r\nccc\r\nddd';
+  pattern = new RegExp(r"^\d", multiLine: true);
+  result = pattern.allMatches(string).toList();
+  assertEquals(1, result.length, "7");
+  assertEquals('7', result[0].group(0), "8");
+
+  pattern = new RegExp(r"\d$", multiLine: true);
+  result = pattern.allMatches(string).toList();
+  assertEquals(1, result.length, "9");
+  assertEquals('9', result[0].group(0), "10");
+
+  // Tests from ecma_3/RegExp/regress-72964.js
+  pattern = new RegExp(r"[\S]+");
+  string = '\u00BF\u00CD\u00BB\u00A7';
+  result = pattern.firstMatch(string);
+  assertEquals(1, result.groupCount + 1, "11");
+  assertEquals(string, result.group(0), "12");
+
+  string = '\u00BF\u00CD \u00BB\u00A7';
+  result = pattern.firstMatch(string);
+  assertEquals(1, result.groupCount + 1, "13");
+  assertEquals('\u00BF\u00CD', result.group(0), "14");
+
+  string = '\u4e00\uac00\u4e03\u4e00';
+  result = pattern.firstMatch(string);
+  assertEquals(1, result.groupCount + 1, "15");
+  assertEquals(string, result.group(0), "16");
+
+  string = '\u4e00\uac00 \u4e03\u4e00';
+  result = pattern.firstMatch(string);
+  assertEquals(1, result.groupCount + 1, "17");
+  assertEquals('\u4e00\uac00', result.group(0), "18");
+}