Regression test for issue 19193.

tests/corelib/regexp/issue_19193_test.dart

 // Copyright (c) 2015, 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.
 
-import 'dart:math' as Math;
 import 'package:expect/expect.dart';
 
-main() {
-  Expect.equals(4, new C().m());
+// Regression test for http://dartbug.com/19193
+void main() {
+  RegExp re = new RegExp(r'.*(a+)+\d');
+  Expect.isTrue("a0aaaaaaaaaaaaa".contains(re));
+  Expect.isTrue("a0aaaaaaaaaaaaaa".contains(re)); // false when using JSCRE.
 }
-
-class C {
-  max(a) => a;
-
-  m() {
-    return max(Math.max(2, 4));
-  }
-}