Merge branch '3.4' into 4.3

* 3.4:
  [DependencyInjection] Fix broken references in tests
  Avoid using of kernel after shutdown
  Simplify PHP CS Fixer configuration
  [FrameworkBundle] [HttpKernel] fixed correct EOL and EOM month
  Fix MockFileSessionStorageTest::sessionDir being used after it's unset
  bumped Symfony version to 3.4.34
  updated VERSION for 3.4.33
  update CONTRIBUTORS for 3.4.33
  updated CHANGELOG for 3.4.33
  [Stopwatch] Fixed a bug in stopwatch event getStartTime
  [Stopwatch] Fixed bug in getDuration when counting multiple ongoing periods
  Adding some validations tags on validators.et.xlf
  add missing translation for 94 (it)

Author: nicolas-grekas

Tests/LazyProxy/Instantiator/RealServiceInstantiatorTest.php

@@ -16,7 +16,7 @@
 use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\RealServiceInstantiator;
 
 /**
- * Tests for {@see \Symfony\Component\DependencyInjection\Instantiator\RealServiceInstantiator}.
+ * Tests for {@see \Symfony\Component\DependencyInjection\LazyProxy\Instantiator\RealServiceInstantiator}.
  *
  * @author Marco Pivetta <ocramius@gmail.com>
  */

Tests/LazyProxy/PhpDumper/NullDumperTest.php

@@ -16,7 +16,7 @@
 use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\NullDumper;
 
 /**
- * Tests for {@see \Symfony\Component\DependencyInjection\PhpDumper\NullDumper}.
+ * Tests for {@see \Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\NullDumper}.
  *
  * @author Marco Pivetta <ocramius@gmail.com>
  */