// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
+#if NET_4_0
+
using System;
using System.Threading;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Concurrent;
-
-#if NET_4_0
+using System.Linq.Parallel;
+using System.Linq.Parallel.QueryNodes;
namespace System.Linq
{