bug #19434 [Serializer] enable property info in framework bundle (David Badura)

This PR was submitted for the master branch but it was merged into the 3.1 branch instead (closes #19434).

Discussion
----------

[Serializer] enable property info in framework bundle

| Q             | A
| ------------- | ---
| Branch?       | 3.1
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

I've been wondering why the datetime normalizer won't work in combination with object normalizer in symfony 3.1 by default. I also found nothing in the documentation. Only http://symfony.com/blog/new-in-symfony-3-1-datetime-normalizer but here is not described how to use it with the object normalizer and how to configure the config.yml.

After debugging i found out that the object normalizer don't use the new property info component. With my change, you can enabled it with following config:

```yml
    serializer:
         enabled: true
    property_info: ~
```

Should i add analog to `enable_annotation` an `enable_property_info` option?

```yml
    serializer:
         enabled: true
         enable_property_info: true
    property_info: ~
```

Commits
-------

c02933d enable property info

src/Symfony/Bundle/FrameworkBundle/Resources/config/serializer.xml

@@ -21,6 +21,7 @@
             <argument type="service" id="serializer.mapping.class_metadata_factory" />
             <argument>null</argument> <!-- name converter -->
             <argument type="service" id="serializer.property_accessor" />
+            <argument type="service" id="property_info" on-invalid="ignore" />
 
             <!-- Run after all custom serializers -->
             <tag name="serializer.normalizer" priority="-1000" />

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/full.php

@@ -68,6 +68,7 @@ $container->loadFromExtension('framework', array(
         'enable_annotations' => true,
         'name_converter' => 'serializer.name_converter.camel_case_to_snake_case',
     ),
+    'property_info' => true,
     'ide' => 'file%%link%%format',
     'request' => array(
         'formats' => array(

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/full.xml

@@ -41,5 +41,6 @@
         <framework:validation enabled="true" cache="validator.mapping.cache.doctrine.apc" />
         <framework:annotations cache="file" debug="true" file-cache-dir="%kernel.cache_dir%/annotations" />
         <framework:serializer enabled="true" enable-annotations="true" name-converter="serializer.name_converter.camel_case_to_snake_case" />
+        <framework:property-info />
     </framework:config>
 </container>

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/full.yml

@@ -53,6 +53,7 @@ framework:
          enabled:        true
          enable_annotations: true
          name_converter: serializer.name_converter.camel_case_to_snake_case
+    property_info: ~
     ide: file%%link%%format
     request:
         formats:

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -462,6 +462,7 @@ abstract class FrameworkExtensionTest extends TestCase
         $this->assertEquals('Symfony\Component\Serializer\Mapping\Loader\AnnotationLoader', $argument[0]->getClass());
         $this->assertNull($container->getDefinition('serializer.mapping.class_metadata_factory')->getArgument(1));
         $this->assertEquals(new Reference('serializer.name_converter.camel_case_to_snake_case'), $container->getDefinition('serializer.normalizer.object')->getArgument(1));
+        $this->assertEquals(new Reference('property_info', ContainerBuilder::IGNORE_ON_INVALID_REFERENCE), $container->getDefinition('serializer.normalizer.object')->getArgument(3));
     }
 
     public function testRegisterSerializerExtractor()