Merge branch '3.4' into 4.3

* 3.4:
  cs fix

src/Symfony/Component/BrowserKit/Tests/AbstractBrowserTest.php

@@ -12,12 +12,10 @@
 namespace Symfony\Component\BrowserKit\Tests;
 
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\BrowserKit\AbstractBrowser;
 use Symfony\Component\BrowserKit\Client;
 use Symfony\Component\BrowserKit\CookieJar;
 use Symfony\Component\BrowserKit\History;
 use Symfony\Component\BrowserKit\Response;
-use Symfony\Component\DomCrawler\Form as DomCrawlerForm;
 
 class AbstractBrowserTest extends TestCase
 {

src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataExtractorTest.php

@@ -15,8 +15,8 @@ use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Form\CallbackTransformer;
 use Symfony\Component\Form\Exception\TransformationFailedException;
-use Symfony\Component\Form\Extension\DataCollector\FormDataExtractor;
 use Symfony\Component\Form\Extension\Core\Type\HiddenType;
+use Symfony\Component\Form\Extension\DataCollector\FormDataExtractor;
 use Symfony\Component\Form\FormBuilder;
 use Symfony\Component\Form\FormError;
 use Symfony\Component\Form\FormView;

src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php

@@ -171,12 +171,12 @@ class AbstractObjectNormalizerTest extends TestCase
                     );
                 }
 
-                throw new InvalidArgumentException;
+                throw new InvalidArgumentException();
             }
 
             public function hasMetadataFor($value): bool
             {
-                return $value === AbstractDummy::class;
+                return AbstractDummy::class === $value;
             }
         };
 

src/Symfony/Component/Serializer/Tests/SerializerTest.php

@@ -388,7 +388,7 @@ class SerializerTest extends TestCase
 
             public function hasMetadataFor($value): bool
             {
-                return $value === AbstractDummy::class;
+                return AbstractDummy::class === $value;
             }
         };
 

src/Symfony/Component/Translation/Extractor/AbstractFileExtractor.php

@@ -27,7 +27,7 @@ abstract class AbstractFileExtractor
      */
     protected function extractFiles($resource)
     {
-        if (\is_iterable($resource)) {
+        if (is_iterable($resource)) {
             $files = [];
             foreach ($resource as $file) {
                 if ($this->canBeExtracted($file)) {