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/utilities/time/time.duration/default_ratio.pass.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <chrono>
+
+// duration
+
+// Test default template arg:
+
+// template <class Rep, class Period = ratio<1>>
+// class duration;
+
+#include <chrono>
+#include <type_traits>
+
+int main()
+{
+    static_assert((std::is_same<std::chrono::duration<int, std::ratio<1> >,
+                   std::chrono::duration<int> >::value), "");
+}