debug_variable_info

# File lib/debug.rb, line 315
    def debug_variable_info(input, binding)
      case input
      when /^\s*g(?:lobal)?\s*$/
        var_list(global_variables, binding)

      when /^\s*l(?:ocal)?\s*$/
        var_list(eval("local_variables", binding), binding)

      when /^\s*i(?:nstance)?\s+/
        obj = debug_eval($', binding)
        var_list(obj.instance_variables, obj.instance_eval{binding()})

      when /^\s*c(?:onst(?:ant)?)?\s+/
        obj = debug_eval($', binding)
        unless obj.kind_of? Module
          stdout.print "Should be Class/Module: ", $', "\n"
        else
          var_list(obj.constants, obj.module_eval{binding()})
        end
      end
    end