fails(JRUBY-2602):Readline::HISTORY.[]= sets the item at the given index
fails(JRUBY-2602):Readline::HISTORY.[]= returns the new value for the passed index
fails(JRUBY-2602):Readline::HISTORY.[]= raises an IndexError when there is no item at the passed index
fails(JRUBY-2602):Readline::HISTORY.[]= raises an IndexError when there is no item at the passed positive index
fails(JRUBY-2602):Readline::HISTORY.[]= raises an IndexError when there is no item at the passed negative index
