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/memory/pointer.traits/pointer_to.pass.cpp

@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <memory>
+
+// template <class T>
+// struct pointer_traits<T*>
+// {
+//     static pointer pointer_to(<details>);
+//     ...
+// };
+
+#include <memory>
+#include <cassert>
+
+int main()
+{
+    {
+        int i = 0;
+        int* a = std::pointer_traits<int*>::pointer_to(i);
+        assert(a == &i);
+    }
+    {
+        (std::pointer_traits<void*>::element_type)0;
+    }
+}