Merge branch '4.1'

* 4.1:
  [HttpKernel] fix PHP 5.4 compat
  Fix surrogate not using original request
  [Finder] Update RealIteratorTestCase
  [Routing] remove unneeded dev dep on doctrine/common
  [minor] SCA
  [Validator] Remove BOM in some xlf files
  Ensure updateTimestamp returns a boolean
  Fix #27378: Error when rendering a DateIntervalType form with exactly 0 weeks
  [HttpKernel] fix session tracking in surrogate master requests

Author: nicolas-grekas

Tests/DependencyInjection/DoctrineExtensionTest.php

@@ -204,9 +204,7 @@ public function testLoadBasicCacheDriver(string $class, array $config, array $ex
         $definition = $container->getDefinition('doctrine.orm.default_metadata_cache');
         $defCalls = $definition->getMethodCalls();
         $expectedCalls[] = 'setNamespace';
-        $actualCalls = array_map(function (array $call) {
-            return $call[0];
-        }, $defCalls);
+        $actualCalls = array_column($defCalls, 0);
 
         $this->assertFalse($definition->isPublic());
         $this->assertEquals("%$class%", $definition->getClass());