Merge branch '3.1'

* 3.1:
  [TwigBridge] fix tests
  Tag the FormFieldRegistry as being internal
  [Form] Fix Date\TimeType marked as invalid on request with single_text and zero seconds
  [FrameworkBundle] Register the ArrayDenormalizer
  [Serializer] Fix DataUriNormalizer's regex
  [Validator] Added missing swedish translation
  [TranslationDebug] workaround for getFallbackLocales.
  [Translation] fixed nested fallback catalogue  using multiple locales.
  fixed phpdoc
  [Command] Fixed method comments as phpDoc syntax
  Added single quotes for upgrade guides.

Author: fabpot

Command/TranslationDebugCommand.php

@@ -21,6 +21,8 @@
 use Symfony\Component\Translation\Catalogue\MergeOperation;
 use Symfony\Component\Translation\MessageCatalogue;
 use Symfony\Component\Translation\Translator;
+use Symfony\Component\Translation\DataCollectorTranslator;
+use Symfony\Component\Translation\LoggingTranslator;
 
 /**
  * Helps finding unused or missing translation messages in a given locale
@@ -307,7 +309,7 @@ private function loadFallbackCatalogues($locale, $transPaths, TranslationLoader
     {
         $fallbackCatalogues = array();
         $translator = $this->getContainer()->get('translator');
-        if ($translator instanceof Translator) {
+        if ($translator instanceof Translator || $translator instanceof DataCollectorTranslator || $translator instanceof LoggingTranslator) {
             foreach ($translator->getFallbackLocales() as $fallbackLocale) {
                 if ($fallbackLocale === $locale) {
                     continue;

Resources/config/serializer.xml

@@ -24,10 +24,15 @@
             <argument type="service" id="serializer.property_accessor" />
             <argument type="service" id="property_info" on-invalid="ignore" />
 
-            <!-- Run after all custom serializers -->
+            <!-- Run after all custom normalizers -->
             <tag name="serializer.normalizer" priority="-1000" />
         </service>
 
+        <service id="serializer.denormalizer.array" class="Symfony\Component\Serializer\Normalizer\ArrayDenormalizer" public="false">
+            <!-- Run before the object normalizer -->
+            <tag name="serializer.normalizer" priority="-990" />
+        </service>
+
         <!-- Loader -->
         <service id="serializer.mapping.chain_loader" class="Symfony\Component\Serializer\Mapping\Loader\LoaderChain" public="false">
             <argument type="collection" />

Tests/Functional/SerializerTest.php

@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bundle\FrameworkBundle\Tests\Functional;
+
+use Symfony\Component\Serializer\Normalizer\DataUriNormalizer;
+
+/**
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class SerializerTest extends WebTestCase
+{
+    public function testDeserializeArrayOfObject()
+    {
+        if (!class_exists(DataUriNormalizer::class)) {
+            $this->markTestSkipped('This test is only applicable when using the Symfony Serializer Component version 3.1 or superior.');
+        }
+
+        static::bootKernel(array('test_case' => 'Serializer'));
+        $container = static::$kernel->getContainer();
+
+        $result = $container->get('serializer')->deserialize('{"bars": [{"id": 1}, {"id": 2}]}', Foo::class, 'json');
+
+        $bar1 = new Bar();
+        $bar1->id = 1;
+        $bar2 = new Bar();
+        $bar2->id = 2;
+
+        $expected = new Foo();
+        $expected->bars = array($bar1, $bar2);
+
+        $this->assertEquals($expected, $result);
+    }
+}
+
+class Foo
+{
+    /**
+     * @var Bar[]
+     */
+    public $bars;
+}
+
+class Bar
+{
+    /**
+     * @var int
+     */
+    public $id;
+}

Tests/Functional/app/Serializer/bundles.php

@@ -0,0 +1,16 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+
+return array(
+    new FrameworkBundle(),
+);

Tests/Functional/app/Serializer/config.yml

@@ -0,0 +1,6 @@
+imports:
+    - { resource: ../config/default.yml }
+
+framework:
+    serializer: { enabled: true }
+    property_info: { enabled: true }