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/utility/pairs/pairs.pair/default.pass.cpp

@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <utility>
+
+// template <class T1, class T2> struct pair
+
+// constexpr pair();
+
+#include <utility>
+#include <cassert>
+
+int main()
+{
+    {
+    typedef std::pair<float, short*> P;
+    P p;
+    assert(p.first == 0.0f);
+    assert(p.second == nullptr);
+    }
+    
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::pair<float, short*> P;
+    constexpr P p;
+    static_assert(p.first == 0.0f, "");
+    static_assert(p.second == nullptr, "");
+    }
+#endif
+}