Merge branch '3.2'

* 3.2:
  [Security] fix Composer constraint
  Provide less state in getRequestFormat
  fix test class location
  Static code analysis with Php Inspections (EA Extended): dead code dropped, couple bugs fixed
  Adding use statement for InvalidArgumentException

Author: nicolas-grekas

Catalogue/AbstractOperation.php

@@ -85,7 +85,6 @@ public function __construct(MessageCatalogueInterface $source, MessageCatalogueI
         $this->source = $source;
         $this->target = $target;
         $this->result = new MessageCatalogue($source->getLocale());
-        $this->domains = null;
         $this->messages = array();
     }
 

TranslatorBagInterface.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Translation;
 
+use Symfony\Component\Translation\Exception\InvalidArgumentException;
+
 /**
  * TranslatorBagInterface.
  *

TranslatorInterface.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Translation;
 
+use Symfony\Component\Translation\Exception\InvalidArgumentException;
+
 /**
  * TranslatorInterface.
  *