Merge branch '3.1' into 3.2

* 3.1: (31 commits)
  fixed CS
  fixed CS
  fixed CS fixer config
  fixed typo
  Revert "fixed typo"
  fixed typo
  fixed CS
  Avoid setting request attributes from signature arguments in AnnotationClassLoader
  [DependencyInjection] Add some missing typehints in YamlFileLoader
  [DependencyInjection] minor: Fix a DocBlock
  [HttpKernel] Give higher priority to adding request formats
  [PropertyInfo] Don't try to access a property thru a static method
  [PropertyInfo] Exclude static methods form properties guessing
  [FrameworkBundle] Fix third level headers for MarkdownDescriptor
  [Ldap] Using Ldap stored username instead of form submitted one
  [Ldap] load users with the good username case
  [DoctrineBridge] Fixed invalid unique value as composite key
  [Doctrine Bridge] fix UniqueEntityValidator for composite object primary keys
  [TwigBundle] do not lose already set method calls
  #20411 fix Yaml parsing for very long quoted strings
  ...

Author: fabpot

Crawler.php

@@ -192,7 +192,7 @@ public function addHtmlContent($content, $charset = 'UTF-8')
         $dom = new \DOMDocument('1.0', $charset);
         $dom->validateOnParse = true;
 
-        set_error_handler(function () {throw new \Exception();});
+        set_error_handler(function () { throw new \Exception(); });
 
         try {
             // Convert charset to HTML-entities to work around bugs in DOMDocument::loadHTML()