execute (Debugger::MethodCommand)

    # File cli/ruby-debug/commands/method.rb, line 48
        def execute
          if @match[1] == "iv"
            obj = debug_eval(@match.post_match)
            obj.instance_variables.sort.each do |v|
              print "%s = %s\n", v, obj.instance_variable_get(v).inspect
            end
          elsif @match[1]
            obj = debug_eval(@match.post_match)
            print "%s\n", columnize(obj.methods.sort(),
                                    self.class.settings[:width])
          else
            obj = debug_eval(@match.post_match)
            unless obj.kind_of? Module
              print "Should be Class/Module: %s\n", @match.post_match
            else
              print "%s\n", columnize(obj.instance_methods(false).sort(),
                                      self.class.settings[:width])
            end
          end
        end