Fix build

Author: ig-sinicyn

CodeJam.Main.Tests/IO/TempDataTests.cs

@@ -1,9 +1,9 @@
-using System;
+using NUnit.Framework;
+using System;
 using System.IO;
+using System.Runtime.CompilerServices;
 using System.Text;
 
-using NUnit.Framework;
-
 namespace CodeJam.IO
 {
 	[TestFixture(Category = "IO")]