public static string GetIconForType(string nodeType, SymbolAccessibility visibility)
        {
            string icon = null;

            iconTable[visibility].TryGetValue(nodeType.ToLower(), out icon);
            return(icon);
        }
        public static string ToString(this SymbolAccessibility @this)
        {
            switch (@this)
            {
            case SymbolAccessibility.PROTECTED:
                return("protected");

            case SymbolAccessibility.INTERNAL:
                return("internal");

            case SymbolAccessibility.PRIVATE:
                return("private");

            case SymbolAccessibility.PUBLIC:
                return("public");
            }
            assert_not_reached();
            return(null);
        }