Port regexp tests from V8 to Dart.

tests/corelib/regexp/loop-capture_test.dart

Index: tests/corelib/regexp/loop-capture_test.dart
diff --git a/runtime/third_party/double-conversion/src/strtod.h b/tests/corelib/regexp/loop-capture_test.dart
similarity index 69%
copy from runtime/third_party/double-conversion/src/strtod.h
copy to tests/corelib/regexp/loop-capture_test.dart
index ed0293b8f54a373762f17fe4dd70f2896eb1d193..fb8174fb12b46f2ccd7e833257bb898a68f8befd 100644
--- a/runtime/third_party/double-conversion/src/strtod.h
+++ b/tests/corelib/regexp/loop-capture_test.dart
@@ -1,4 +1,5 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright (c) 2014, the Dart project authors. All rights reserved.
+// Copyright 2009 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:
@@ -25,21 +26,10 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef DOUBLE_CONVERSION_STRTOD_H_
-#define DOUBLE_CONVERSION_STRTOD_H_
+import 'v8_regexp_utils.dart';
+import 'package:expect/expect.dart';
 
-#include "utils.h"
-
-namespace double_conversion {
-
-// The buffer must only contain digits in the range [0-9]. It must not
-// contain a dot or a sign. It must not start with '0', and must not be empty.
-double Strtod(Vector<const char> buffer, int exponent);
-
-// The buffer must only contain digits in the range [0-9]. It must not
-// contain a dot or a sign. It must not start with '0', and must not be empty.
-float Strtof(Vector<const char> buffer, int exponent);
-
-}  // namespace double_conversion
-
-#endif  // DOUBLE_CONVERSION_STRTOD_H_
+void main() {
+  shouldBe(new RegExp(r"(?:(a)|(b)|(c))+").firstMatch("abc"), ["abc",null,null,"c"]);
+  shouldBe(new RegExp(r"(?:(a)|b)*").firstMatch("ab"), ["ab",null]);
+}