Merge branch '2.8' into 3.0

* 2.8:
  Typo fix
  [WebProfiler] Fixed sf-minitoolbar height
  [2.3] Static Code Analysis for Components
  [Serializer] Use $context['cache_key'] to enhance caching
  Fixed erroneous deprecation notice for extended Interfaces
  [Routing] cs fix
  Added support \IteratorAggregate for UniqueEntityValidator
  Update AbstractChoiceListTest.php
  Fix #17306 Paths with % in it are note allowed (like urlencoded)
  Use proper class to fetch $versionStrategy property
  Added sort order SORT_STRING for params in UriSigner
  Remove normalizer cache in Serializer class
  [Serializer] ObjectNormalizer: context can contain not serializable data

Author: fabpot

DependencyInjection/FrameworkExtension.php

@@ -664,24 +664,26 @@ private function registerTranslatorConfiguration(array $config, ContainerBuilder
 
             $dirs[] = dirname($r->getFileName()).'/../Resources/translations';
         }
-        $overridePath = $container->getParameter('kernel.root_dir').'/Resources/%s/translations';
+        $rootDir = $container->getParameter('kernel.root_dir');
         foreach ($container->getParameter('kernel.bundles') as $bundle => $class) {
             $reflection = new \ReflectionClass($class);
             if (is_dir($dir = dirname($reflection->getFileName()).'/Resources/translations')) {
                 $dirs[] = $dir;
             }
-            if (is_dir($dir = sprintf($overridePath, $bundle))) {
+            if (is_dir($dir = $rootDir.sprintf('/Resources/%s/translations', $bundle))) {
                 $dirs[] = $dir;
             }
         }
+
         foreach ($config['paths'] as $dir) {
             if (is_dir($dir)) {
                 $dirs[] = $dir;
             } else {
                 throw new \UnexpectedValueException(sprintf('%s defined in translator.paths does not exist or is not a directory', $dir));
             }
         }
-        if (is_dir($dir = $container->getParameter('kernel.root_dir').'/Resources/translations')) {
+
+        if (is_dir($dir = $rootDir.'/Resources/translations')) {
             $dirs[] = $dir;
         }