Merge branch '3.0'

* 3.0: (105 commits)
  [Console] remove readline support
  bumped Symfony version to 3.0.3
  updated VERSION for 3.0.2
  updated CHANGELOG for 3.0.2
  [Routing] added a suggestion to add the HttpFoundation component.
  [FrameworkBundle] fix assets and templating tests
  [ClassLoader] fix ApcClassLoader tests on HHVM
  [travis] Add some comments
  changed operator from and to &&
  [DependencyInjection] Remove unused parameter
  [Process] Fix transient tests for incremental outputs
  [Console] Add missing `@require` annotation in test
  Fix merge
  [appveyor] Fix failure reporting
  [#17634] move DebugBundle license file
  Limit Ldap component version for the 3.0 branch
  backport GlobTest from 2.7 branch
  Move licenses according to new best practices
  [FrameworkBundle] Remove unused code in test
  [2.3] Fixed an undefined variable in Glob::toRegex
  ...

Conflicts:
	.travis.yml
	composer.json
	src/Symfony/Bridge/Doctrine/Tests/Validator/Constraints/UniqueEntityValidatorTest.php
	src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
	src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
	src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/assets.php
	src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/assets.xml
	src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/assets.yml
	src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar_item.html.twig
	src/Symfony/Component/Console/CHANGELOG.md
	src/Symfony/Component/HttpKernel/Kernel.php
	src/Symfony/Component/PropertyInfo/Tests/PropertyInfoExtractorTest.php
	src/Symfony/Component/Yaml/Tests/ParserTest.php

Author: nicolas-grekas

Mapping/Factory/ClassMetadataFactory.php

@@ -29,10 +29,12 @@ class ClassMetadataFactory implements ClassMetadataFactoryInterface
      * @var LoaderInterface
      */
     private $loader;
+
     /**
      * @var Cache
      */
     private $cache;
+
     /**
      * @var array
      */

Mapping/Loader/YamlFileLoader.php

@@ -65,6 +65,7 @@ public function loadClassMetadata(ClassMetadataInterface $classMetadata)
 
             if (isset($yaml['attributes']) && is_array($yaml['attributes'])) {
                 $attributesMetadata = $classMetadata->getAttributesMetadata();
+
                 foreach ($yaml['attributes'] as $attribute => $data) {
                     if (isset($attributesMetadata[$attribute])) {
                         $attributeMetadata = $attributesMetadata[$attribute];
@@ -74,7 +75,15 @@ public function loadClassMetadata(ClassMetadataInterface $classMetadata)
                     }
 
                     if (isset($data['groups'])) {
+                        if (!is_array($data['groups'])) {
+                            throw new MappingException('The "groups" key must be an array of strings in "%s" for the attribute "%s" of the class "%s".', $this->file, $attribute, $classMetadata->getName());
+                        }
+
                         foreach ($data['groups'] as $group) {
+                            if (!is_string($group)) {
+                                throw new MappingException('Group names must be strings in "%s" for the attribute "%s" of the class "%s".', $this->file, $attribute, $classMetadata->getName());
+                            }
+
                             $attributeMetadata->addGroup($group);
                         }
                     }

NameConverter/CamelCaseToSnakeCaseNameConverter.php

@@ -22,6 +22,7 @@ class CamelCaseToSnakeCaseNameConverter implements NameConverterInterface
      * @var array|null
      */
     private $attributes;
+
     /**
      * @var bool
      */

Normalizer/AbstractNormalizer.php

@@ -33,26 +33,32 @@ abstract class AbstractNormalizer extends SerializerAwareNormalizer implements N
      * @var int
      */
     protected $circularReferenceLimit = 1;
+
     /**
      * @var callable
      */
     protected $circularReferenceHandler;
+
     /**
      * @var ClassMetadataFactoryInterface|null
      */
     protected $classMetadataFactory;
+
     /**
      * @var NameConverterInterface|null
      */
     protected $nameConverter;
+
     /**
      * @var array
      */
     protected $callbacks = array();
+
     /**
      * @var array
      */
     protected $ignoredAttributes = array();
+
     /**
      * @var array
      */

Serializer.php

@@ -41,18 +41,22 @@ class Serializer implements SerializerInterface, NormalizerInterface, Denormaliz
      * @var Encoder\ChainEncoder
      */
     protected $encoder;
+
     /**
      * @var Encoder\ChainDecoder
      */
     protected $decoder;
+
     /**
      * @var array
      */
     protected $normalizers = array();
+
     /**
      * @var array
      */
     protected $normalizerCache = array();
+
     /**
      * @var array
      */
@@ -247,8 +251,10 @@ private function denormalizeObject($data, $class, $format, array $context = arra
         }
 
         foreach ($this->normalizers as $normalizer) {
-            if ($normalizer instanceof DenormalizerInterface
-                && $normalizer->supportsDenormalization($data, $class, $format)) {
+            if (
+                $normalizer instanceof DenormalizerInterface &&
+                $normalizer->supportsDenormalization($data, $class, $format)
+            ) {
                 return $normalizer->denormalize($data, $class, $format, $context);
             }
         }

Tests/Normalizer/GetSetMethodNormalizerTest.php

@@ -344,7 +344,6 @@ public function provideCallbacks()
             array(
                 array(
                     'bar' => function ($bar) {
-                        return;
                     },
                 ),
                 'baz',