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/meta/meta.hel/integral_constant.pass.cpp

@@ -0,0 +1,47 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// type_traits
+
+// integral_constant
+
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+    typedef std::integral_constant<int, 5> _5;
+    static_assert(_5::value == 5, "");
+    static_assert((std::is_same<_5::value_type, int>::value), "");
+    static_assert((std::is_same<_5::type, _5>::value), "");
+#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+    static_assert((_5() == 5), "");
+#else
+    assert(_5() == 5);
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    static_assert ( _5{}() == 5, "" );
+    static_assert ( std::true_type{}(), "" );
+#endif
+
+    static_assert(std::false_type::value == false, "");
+    static_assert((std::is_same<std::false_type::value_type, bool>::value), "");
+    static_assert((std::is_same<std::false_type::type, std::false_type>::value), "");
+
+    static_assert(std::true_type::value == true, "");
+    static_assert((std::is_same<std::true_type::value_type, bool>::value), "");
+    static_assert((std::is_same<std::true_type::type, std::true_type>::value), "");
+
+    std::false_type f1;
+    std::false_type f2 = f1;
+
+    std::true_type t1;
+    std::true_type t2 = t1;
+}