Migrated test block 19 to Dart 2.0.

tests/corelib_strong/regexp/bol_test.dart

-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  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.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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() {
-  description('Test for beginning of line (BOL or ^) matching</a>');
-
-  var s = "abc123def456xyzabc789abc999";
-  shouldBeNull(firstMatch(s, new RegExp(r"^notHere")));
-  shouldBe(firstMatch(s, new RegExp(r"^abc")), ["abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(^|X)abc")), ["abc", ""]);
-  shouldBe(firstMatch(s, new RegExp(r"^longer|123")), ["123"]);
-  shouldBe(firstMatch(s, new RegExp(r"(^abc|c)123")), ["abc123", "abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(c|^abc)123")), ["abc123", "abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(^ab|abc)123")), ["abc123", "abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(bc|^abc)([0-9]*)a")),
-      ["bc789a", "bc", "789"]);
-  shouldBeNull(new RegExp(r"(?:(Y)X)|(X)").firstMatch("abc"));
-  shouldBeNull(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abc"));
-  shouldBeNull(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcd"));
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("Xabcd"), ["X", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("aXbcd"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abXcd"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcXd"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcdX"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("YXabcd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("aYXbcd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abYXcd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcYXd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcdYX"), ["YX", null]);
-}