Issue #3349507 by acbramley: DateTimePlus::createFromDateTime should accept DateTimeInterface

  /**

   * Creates a date object from an input date object.

   *

   * @param \DateTime $datetime

   * @param \DateTimeInterface $datetime

   *   A DateTime object.

   * @param array $settings

   *   (optional) A keyed array for settings, suitable for passing on to

   * @return static

   *   A new DateTimePlus object.

   */

  public static function createFromDateTime(\DateTime $datetime, $settings = []) {

  public static function createFromDateTime(\DateTimeInterface $datetime, $settings = []) {

    return new static($datetime->format(static::FORMAT), $datetime->getTimezone(), $settings);

  }