Merge branch '5.1' into 5.2

* 5.1:
  fix code style
  Remove full head content in HTML to text converter
  apply the sort callback on the whole search result

Author: xabbuh

Dumper/PhpDumper.php

@@ -21,7 +21,6 @@
 use Symfony\Component\DependencyInjection\Argument\ServiceLocatorArgument;
 use Symfony\Component\DependencyInjection\Compiler\AnalyzeServiceReferencesPass;
 use Symfony\Component\DependencyInjection\Compiler\CheckCircularReferencesPass;
-use Symfony\Component\DependencyInjection\Compiler\ServiceReferenceGraphEdge;
 use Symfony\Component\DependencyInjection\Compiler\ServiceReferenceGraphNode;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerBuilder;