Fix compiler error in AvalonEdit.Sample.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@5890 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

samples/AvalonEdit.Sample/MyCompletionData.cs

@@ -48,6 +48,8 @@ namespace AvalonEdit.Sample
 			get { return "Description for " + this.Text; }
 		}
 		
+		public double Priority { get { return 0; } }
+		
 		public void Complete(TextArea textArea, ISegment completionSegment, EventArgs insertionRequestEventArgs)
 		{
 			textArea.Document.Replace(completionSegment, this.Text);