Simplify usage of dirname()

Author: fabpot

Client.php

@@ -169,7 +169,7 @@ protected function getScript($request)
         foreach (get_declared_classes() as $class) {
             if (0 === strpos($class, 'ComposerAutoloaderInit')) {
                 $r = new \ReflectionClass($class);
-                $file = \dirname(\dirname($r->getFileName())).'/autoload.php';
+                $file = \dirname($r->getFileName(), 2).'/autoload.php';
                 if (file_exists($file)) {
                     $requires .= 'require_once '.var_export($file, true).";\n";
                 }

DependencyInjection/FrameworkExtension.php

@@ -1114,7 +1114,7 @@ private function registerTranslatorConfiguration(array $config, ContainerBuilder
         if (class_exists('Symfony\Component\Security\Core\Exception\AuthenticationException')) {
             $r = new \ReflectionClass('Symfony\Component\Security\Core\Exception\AuthenticationException');
 
-            $dirs[] = $transPaths[] = \dirname(\dirname($r->getFileName())).'/Resources/translations';
+            $dirs[] = $transPaths[] = \dirname($r->getFileName(), 2).'/Resources/translations';
         }
         $defaultDir = $container->getParameterBag()->resolveValue($config['default_path']);
         $rootDir = $container->getParameter('kernel.root_dir');

Tests/Command/CacheClearCommand/CacheClearCommandTest.php

@@ -64,7 +64,7 @@ public function testCacheIsFreshAfterCacheClearedWithWarmup()
         // check that app kernel file present in meta file of container's cache
         $containerClass = $this->kernel->getContainer()->getParameter('kernel.container_class');
         $containerRef = new \ReflectionClass($containerClass);
-        $containerFile = \dirname(\dirname($containerRef->getFileName())).'/'.$containerClass.'.php';
+        $containerFile = \dirname($containerRef->getFileName(), 2).'/'.$containerClass.'.php';
         $containerMetaFile = $containerFile.'.meta';
         $kernelRef = new \ReflectionObject($this->kernel);
         $kernelFile = $kernelRef->getFileName();