unknown_global_method: src: "system('echo date')" res: "Unknown method 'system(\"echo date\")'." bad_argument_types: src: "strftime(34,'ffoo')" res: "Unknown method 'strftime(34, \"ffoo\")'." zero_div: src: "1/(id-10)" tem: "(1/(var1.zip-10) rescue nil)" res: "" looping: src: "while(true) do puts 'flood' end" res: 'Bug! Unknown node-type :while to RubyLess::RubyLessProcessor' add_two_strings: src: "name + 14" res: "'var1.name' does not respond to '+(14)'."