Addressing Mads' comments from http://codereview.chromium.org/3585010/show.

test/cctest/test-api.cc

 // Copyright 2007-2009 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:
 //
 //     * 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
@@ skipping 11697 matching lines @@
   re = v8::RegExp::New(v8_str("foobarbaz"),
                        static_cast<v8::RegExp::Flags>(v8::RegExp::kIgnoreCase |
                                                       v8::RegExp::kMultiline));
   CHECK(re->IsRegExp());
   CHECK(re->GetSource()->Equals(v8_str("foobarbaz")));
   CHECK_EQ(static_cast<int>(re->GetFlags()),
            v8::RegExp::kIgnoreCase | v8::RegExp::kMultiline);
 
   context->Global()->Set(v8_str("re"), re);
   ExpectTrue("re.test('FoobarbaZ')");
+
+  v8::TryCatch try_catch;
+  re = v8::RegExp::New(v8_str("foo["), v8::RegExp::kNone);
+  CHECK(re.IsEmpty());
+  CHECK(try_catch.HasCaught());
+  context->Global()->Set(v8_str("ex"), try_catch.Exception());
+  ExpectTrue("ex instanceof SyntaxError");
 }