set_last_value

# File lib/irb/ext/history.rb, line 21
    def set_last_value(value)
      _set_last_value(value)

#      @workspace.evaluate self, "_ = IRB.CurrentContext.last_value"
      if @eval_history #and !@eval_history_values.equal?(llv)
        @eval_history_values.push @line_no, @last_value
        @workspace.evaluate self, "__ = IRB.CurrentContext.instance_eval{@eval_history_values}"
      end

      @last_value
    end