private IEnumerable <Completion> GenerateInstructions( )
 {
     foreach (var word in ILParser.GetWords("il.instruction").OrderBy(word => word))
     {
         yield return(new Completion(word,
                                     word,
                                     Descriptions.GetString(word.ToLowerInvariant( )),
                                     word.EndsWith(".") ? PrefixInstructionIcon : InstructionIcon,
                                     word));
     }
 }