Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/strings/basic.string/test_traits.h

@@ -0,0 +1,19 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TEST_TRAITS_H
+#define TEST_TRAITS_H
+
+template <class charT>
+struct test_traits
+{
+    typedef charT     char_type;
+};
+
+#endif  // TEST_TRAITS_H