Add corelib tests

test/codegen/corelib/regexp/regress-regexp-construct-result_test.dart

Index: test/codegen/corelib/regexp/regress-regexp-construct-result_test.dart
diff --git a/test/codegen/corelib/regexp/regress-regexp-construct-result_test.dart b/test/codegen/corelib/regexp/regress-regexp-construct-result_test.dart
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+++ b/test/codegen/corelib/regexp/regress-regexp-construct-result_test.dart
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+// Copyright (c) 2014, the Dart project authors. All rights reserved.
+// Copyright 2013 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() {
+  // Create a huge regexp with many alternative capture groups, most of
+  // which do not capture anything, but the corresponding capture slot
+  // in the result object has to exist, even though filled with null.
+  // Having a large result array helps stressing GC.
+
+  var num_captures = 1000;
+  var regexp_string = "(a)";
+  for (var i = 0; i < num_captures - 1; i++) {
+    regexp_string += "|(b)";
+  }
+  var regexp = new RegExp(regexp_string);
+
+  for (var i = 0; i < 10; i++) {
+    var matches = regexp.firstMatch("a");
+    var count = 0;
+    assertEquals(num_captures + 1, matches.groupCount + 1);
+  }
+}