Fix inverted condition.

Author: dgrunwald

src/AddIns/Debugger/Debugger.AddIn/Service/WindowsDebugger.cs

@@ -633,7 +633,7 @@ public override void HandleToolTipRequest(ToolTipRequestEventArgs e)
 				return;
 			if (CurrentStackFrame == null)
 				return;
-			if (e.InDocument)
+			if (!e.InDocument)
 				return;
 			var resolveResult = SD.ParserService.Resolve(e.Editor, e.LogicalPosition, CurrentStackFrame.AppDomain.Compilation);
 			if (resolveResult == null)