Filling out regex tests...

llvm-svn: 110955
diff --git a/libcxx/test/re/re.syn/wsregex_iterator.pass.cpp b/libcxx/test/re/re.syn/wsregex_iterator.pass.cpp
new file mode 100644
index 0000000..baeaddc
--- /dev/null
+++ b/libcxx/test/re/re.syn/wsregex_iterator.pass.cpp
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <regex>
+
+// typedef regex_iterator<wstring::const_iterator>   wsregex_iterator;
+
+#include <regex>
+#include <type_traits>
+
+int main()
+{
+    static_assert((std::is_same<std::regex_iterator<std::wstring::const_iterator>, std::wsregex_iterator>::value), "");
+}