Merge branch '6.4' into 7.0

* 6.4:
  [Serializer] Remove TranslatableNormalizer service when the Translator is disabled
  Fix support to denormalize plain object types
  [Routing] Restore aliases removal in RouteCollection::remove()
  [Workflow] Add `getEnabledTransition()` to TraceableWorkflow
  [DependencyInjection] Fix parsing named autowiring aliases that contain underscores
  [Console] Add Les-Tilleuls.coop as sponsor of version 6.4/7.0
  remove duplicated service definition

Author: nicolas-grekas

DependencyInjection/FrameworkExtension.php

@@ -1857,7 +1857,7 @@ private function registerSerializerConfiguration(array $config, ContainerBuilder
             $container->removeDefinition('serializer.mapping.cache_class_metadata_factory');
         }
 
-        if (!class_exists(Translator::class)) {
+        if (!$this->readConfigEnabled('translator', $container, $config)) {
             $container->removeDefinition('serializer.normalizer.translatable');
         }
 

Tests/DependencyInjection/Fixtures/php/serializer_without_translator.php

@@ -0,0 +1,14 @@
+<?php
+
+$container->loadFromExtension('framework', [
+    'annotations' => false,
+    'http_method_override' => false,
+    'handle_all_throwables' => true,
+    'php_errors' => ['log' => true],
+    'serializer' => [
+        'enabled' => true,
+    ],
+    'translator' => [
+        'enabled' => false,
+    ],
+]);

Tests/DependencyInjection/Fixtures/xml/serializer_without_translator.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" ?>
+
+<container xmlns="http://symfony.com/schema/dic/services"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns:framework="http://symfony.com/schema/dic/symfony"
+    xsi:schemaLocation="http://symfony.com/schema/dic/services https://symfony.com/schema/dic/services/services-1.0.xsd
+                        http://symfony.com/schema/dic/symfony https://symfony.com/schema/dic/symfony/symfony-1.0.xsd">
+
+    <framework:config secret="s3cr3t" http-method-override="false" handle-all-throwables="true">
+        <framework:annotations enabled="false" />
+        <framework:php-errors log="true" />
+        <framework:serializer enabled="true" />
+        <framework:translator enabled="false" />
+    </framework:config>
+</container>

Tests/DependencyInjection/Fixtures/yml/serializer_without_translator.yml

@@ -0,0 +1,10 @@
+framework:
+    annotations: false
+    http_method_override: false
+    handle_all_throwables: true
+    php_errors:
+        log: true
+    serializer:
+        enabled: true
+    translator:
+        enabled: false

Tests/DependencyInjection/FrameworkExtensionTestCase.php

@@ -1434,6 +1434,12 @@ public function testSerializerEnabled()
         $this->assertEquals($container->getDefinition('serializer.normalizer.object')->getArgument(6)['max_depth_handler'], new Reference('my.max.depth.handler'));
     }
 
+    public function testSerializerWithoutTranslator()
+    {
+        $container = $this->createContainerFromFile('serializer_without_translator');
+        $this->assertFalse($container->hasDefinition('serializer.normalizer.translatable'));
+    }
+
     public function testRegisterSerializerExtractor()
     {
         $container = $this->createContainerFromFile('full');