Fix CS

Author: fabpot

Crawler.php

@@ -533,7 +533,7 @@ public function parents()
      */
     public function children(/* string $selector = null */)
     {
-        if (\func_num_args() < 1 && __CLASS__ !== \get_class($this) && __CLASS__ !== (new \ReflectionMethod($this, __FUNCTION__))->getDeclaringClass()->getName() && !$this instanceof \PHPUnit\Framework\MockObject\MockObject && !$this instanceof \Prophecy\Prophecy\ProphecySubjectInterface) {
+        if (\func_num_args() < 1 && __CLASS__ !== static::class && __CLASS__ !== (new \ReflectionMethod($this, __FUNCTION__))->getDeclaringClass()->getName() && !$this instanceof \PHPUnit\Framework\MockObject\MockObject && !$this instanceof \Prophecy\Prophecy\ProphecySubjectInterface) {
             @trigger_error(sprintf('The "%s()" method will have a new "string $selector = null" argument in version 5.0, not defining it is deprecated since Symfony 4.2.', __METHOD__), E_USER_DEPRECATED);
         }
         $selector = 0 < \func_num_args() ? func_get_arg(0) : null;