#2555: Use Trace.Listeners in TestTraceListener as well.

ICSharpCode.Decompiler.Tests/TestTraceListener.cs

@@ -28,13 +28,13 @@ namespace ICSharpCode.Decompiler.Tests
 		[OneTimeSetUp]
 		public void RunBeforeAnyTests()
 		{
-			Debug.Listeners.Insert(0, this);
+			Trace.Listeners.Insert(0, this);
 		}
 
 		[OneTimeTearDown]
 		public void RunAfterAnyTests()
 		{
-			Debug.Listeners.Remove(this);
+			Trace.Listeners.Remove(this);
 		}
 
 		public override void Fail(string message, string detailMessage)