oops

BizHawk.Client.EmuHawk/tools/ExternalToolManager.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Drawing;
 using System.IO;
 using System.Linq;

Bizware/BizHawk.Bizware.BizwareGL/GuiRenderer.cs

@@ -3,6 +3,7 @@
 //why this stupid assert on the blendstate. just set one by default, geeze.
 
 using System;
+using System.Diagnostics;
 using OpenTK;
 using OpenTK.Graphics.OpenGL;