Merge branch '3.4' into 4.3

* 3.4:
  Fix CS

Author: fabpot

Tests/Compiler/ResolveBindingsPassTest.php

@@ -18,7 +18,6 @@
 use Symfony\Component\DependencyInjection\Compiler\ResolveBindingsPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Definition;
-use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CaseSensitiveClass;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\NamedArgumentsDummy;