Merge branch '2.8' into 3.3

* 2.8: (22 commits)
  Tests and fix for issue in array model data in EntityType field with multiple=true
  [Form] Fixed PercentToLocalizedStringTransformer to accept both comma and dot as decimal separator, if possible
  removed useless PHPDoc
  [Form] Fix FormInterface::submit() annotation
  PdoSessionHandler: fix advisory lock for pgsql when session.sid_bits_per_character > 4
  HttpCache does not consider ESI resources in HEAD requests
  Fix translation for "This field was not expected"
  [Routing] Enhance Route(Collection) docblocks
  Added improvement for accuracy in MoneyToLocalizedStringTransformer.
  Removed unused private property
  Use correct verb form in the pull request template
  Use PHP_MAXPATHLEN in Filesystem.
  Added null as explicit return type (?TokenInterface)
  [FrameworkBundle] Fix Routing\DelegatingLoader
  Render all line breaks according to the exception message
  [Form] Fix phpdoc
  [DI] remove confusing code
  [Form] Fixed GroupSequence with "constraints" option
  [Validator] Clarify UUID validator behavior
  [Filesystem] Fixed makePathRelative
  ...

DebugClassLoader.php

@@ -34,11 +34,6 @@ class DebugClassLoader
     private static $php7Reserved = array('int', 'float', 'bool', 'string', 'true', 'false', 'null');
     private static $darwinCache = array('/' => array('/', array()));
 
-    /**
-     * Constructor.
-     *
-     * @param callable $classLoader A class loader
-     */
     public function __construct(callable $classLoader)
     {
         $this->classLoader = $classLoader;

ExceptionHandler.php

@@ -310,8 +310,8 @@ EOF;
             .exception-message { flex-grow: 1; padding: 30px 0; }
             .exception-message, .exception-message a { color: #FFF; font-size: 21px; font-weight: 400; margin: 0; }
             .exception-message.long { font-size: 18px; }
-            .exception-message a { text-decoration: none; }
-            .exception-message a:hover { text-decoration: underline; }
+            .exception-message a { border-bottom: 1px solid rgba(255, 255, 255, 0.5); font-size: inherit; text-decoration: none; }
+            .exception-message a:hover { border-bottom-color: #ffffff; }
 
             .exception-illustration { flex-basis: 111px; flex-shrink: 0; height: 66px; margin-left: 15px; opacity: .7; }
 

Tests/DebugClassLoaderTest.php

@@ -204,7 +204,7 @@ class DebugClassLoaderTest extends TestCase
 
         $xError = array(
             'type' => E_USER_DEPRECATED,
-            'message' => 'The "Test\Symfony\Component\Debug\Tests\\'.$class.'" class '.$type.' "Symfony\Component\Debug\Tests\Fixtures\\'.$super.'" that is deprecated but this is a test deprecation notice.',
+            'message' => 'The "Test\Symfony\Component\Debug\Tests\\'.$class.'" class '.$type.' "Symfony\Component\Debug\Tests\Fixtures\\'.$super.'" that is deprecated but this is a test deprecation notice',
         );
 
         $this->assertSame($xError, $lastError);

Tests/Fixtures/DeprecatedClass.php

@@ -4,7 +4,7 @@ namespace Symfony\Component\Debug\Tests\Fixtures;
 
 /**
  * @deprecated but this is a test
- *             deprecation notice.
+ *             deprecation notice
  * @foobar
  */
 class DeprecatedClass

Tests/Fixtures/DeprecatedInterface.php

@@ -4,7 +4,7 @@ namespace Symfony\Component\Debug\Tests\Fixtures;
 
 /**
  * @deprecated but this is a test
- *             deprecation notice.
+ *             deprecation notice
  * @foobar
  */
 interface DeprecatedInterface