code: @Override
      public void process(Step step) {
          Status status = throwable instanceof AssertionError ? Status.FAILED : Status.BROKEN;
          step.setStatus(status);
      }
docs: Change step status to {@link ru.yandex.qatools.allure.model.Status#FAILED} if
  throwable instance of AssertionError and to {@link ru.yandex.qatools.allure.model.Status#BROKEN}
  otherwise
  
  @param step which will be changed