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/swap.pass.cpp

@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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
+
+// void swap(pair& p);
+
+#include <utility>
+#include <cassert>
+
+int main()
+{
+    {
+        typedef std::pair<int, short> P1;
+        P1 p1(3, 4);
+        P1 p2(5, 6);
+        p1.swap(p2);
+        assert(p1.first == 5);
+        assert(p1.second == 6);
+        assert(p2.first == 3);
+        assert(p2.second == 4);
+    }
+}