diff --git a/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Deprecation.php b/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Deprecation.php
index eef3f62a06..6263267fef 100644
--- a/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Deprecation.php
+++ b/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Deprecation.php
@@ -247,7 +247,7 @@ class Deprecation
             foreach (get_declared_classes() as $class) {
                 if ('C' === $class[0] && 0 === strpos($class, 'ComposerAutoloaderInit')) {
                     $r = new \ReflectionClass($class);
-                    $v = \dirname($r->getFileName(), 2);
+                    $v = \dirname(\dirname($r->getFileName()));
                     if (file_exists($v.'/composer/installed.json')) {
                         self::$vendors[] = $v;
                         $loader = require $v.'/autoload.php';
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
index fd7fe7158b..6b960bb027 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
@@ -109,7 +109,7 @@ class TranslatorTest extends TestCase
 
     public function testLoadResourcesWithoutCaching()
     {
-        $loader = new \Symfony\Component\Translation\Loader\YamlFileLoader();
+        $loader = new YamlFileLoader();
         $resourceFiles = [
             'fr' => [
                 __DIR__.'/../Fixtures/Resources/translations/messages.fr.yml',
@@ -186,7 +186,7 @@ class TranslatorTest extends TestCase
 
     public function testCatalogResourcesAreAddedForScannedDirectories()
     {
-        $loader = new \Symfony\Component\Translation\Loader\YamlFileLoader();
+        $loader = new YamlFileLoader();
         $resourceFiles = [
             'fr' => [
                 __DIR__.'/../Fixtures/Resources/translations/messages.fr.yml',
@@ -348,7 +348,7 @@ class TranslatorTest extends TestCase
 
     public function testWarmup()
     {
-        $loader = new \Symfony\Component\Translation\Loader\YamlFileLoader();
+        $loader = new YamlFileLoader();
         $resourceFiles = [
             'fr' => [
                 __DIR__.'/../Fixtures/Resources/translations/messages.fr.yml',
@@ -373,7 +373,7 @@ class TranslatorTest extends TestCase
 
     public function testLoadingTranslationFilesWithDotsInMessageDomain()
     {
-        $loader = new \Symfony\Component\Translation\Loader\YamlFileLoader();
+        $loader = new YamlFileLoader();
         $resourceFiles = [
             'en' => [
                 __DIR__.'/../Fixtures/Resources/translations/domain.with.dots.en.yml',