Merge branch '3.4' into 4.0

* 3.4:
  [YAML] Issue #26065: leading spaces in YAML multi-line string literals
  [Bridge\PhpUnit] Exit as late as possible
  [Bridge\PhpUnit] Cleanup BC layer
  [PhpBridge] add PHPUnit 7 support to SymfonyTestsListener
  [Lock] Log already-locked errors as "notice" instead of "warning"
  add context to serialize and deserialize
  Update Repository Symlink Helper
  Document explicitly that dotfiles and vcs files are ignored by default
  [HttpKernel] don't try to wire Request argument with controller.service_arguments
  Make kernel build time optionally deterministic
  Use 0 for unlimited expiry
  [Routing] fix typo
  Bump default PHPUnit version from 6.3 to 6.5
  do not mock the container builder in tests
  [Cache][WebProfiler] fix collecting cache stats with sub-requests + allow clearing calls

Author: nicolas-grekas

Dumper/PhpDumper.php

@@ -120,6 +120,7 @@ public function dump(array $options = array())
             'debug' => true,
             'hot_path_tag' => 'container.hot_path',
             'inline_class_loader_parameter' => 'container.dumper.inline_class_loader',
+            'build_time' => time(),
         ), $options);
 
         $this->namespace = $options['namespace'];
@@ -223,7 +224,7 @@ public function dump(array $options = array())
             array_pop($code);
             $code["Container{$hash}/{$options['class']}.php"] = substr_replace($files[$options['class'].'.php'], "<?php\n\nnamespace Container{$hash};\n", 0, 6);
             $namespaceLine = $this->namespace ? "\nnamespace {$this->namespace};\n" : '';
-            $time = time();
+            $time = $options['build_time'];
             $id = hash('crc32', $hash.$time);
 
             $code[$options['class'].'.php'] = <<<EOF

Tests/Extension/ExtensionTest.php

@@ -12,6 +12,8 @@
 namespace Symfony\Component\DependencyInjection\Tests\Extension;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 
 class ExtensionTest extends TestCase
 {
@@ -20,36 +22,8 @@ class ExtensionTest extends TestCase
      */
     public function testIsConfigEnabledReturnsTheResolvedValue($enabled)
     {
-        $pb = $this->getMockBuilder('Symfony\Component\DependencyInjection\ParameterBag\ParameterBag')
-            ->setMethods(array('resolveValue'))
-            ->getMock()
-        ;
-
-        $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerBuilder')
-            ->setMethods(array('getParameterBag'))
-            ->getMock()
-        ;
-
-        $pb->expects($this->once())
-            ->method('resolveValue')
-            ->with($this->equalTo($enabled))
-            ->will($this->returnValue($enabled))
-        ;
-
-        $container->expects($this->once())
-            ->method('getParameterBag')
-            ->will($this->returnValue($pb))
-        ;
-
-        $extension = $this->getMockBuilder('Symfony\Component\DependencyInjection\Extension\Extension')
-            ->setMethods(array())
-            ->getMockForAbstractClass()
-        ;
-
-        $r = new \ReflectionMethod('Symfony\Component\DependencyInjection\Extension\Extension', 'isConfigEnabled');
-        $r->setAccessible(true);
-
-        $r->invoke($extension, $container, array('enabled' => $enabled));
+        $extension = new EnableableExtension();
+        $this->assertSame($enabled, $extension->isConfigEnabled(new ContainerBuilder(), array('enabled' => $enabled)));
     }
 
     public function getResolvedEnabledFixtures()
@@ -66,18 +40,20 @@ public function getResolvedEnabledFixtures()
      */
     public function testIsConfigEnabledOnNonEnableableConfig()
     {
-        $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerBuilder')
-            ->getMock()
-        ;
+        $extension = new EnableableExtension();
 
-        $extension = $this->getMockBuilder('Symfony\Component\DependencyInjection\Extension\Extension')
-            ->setMethods(array())
-            ->getMockForAbstractClass()
-        ;
+        $extension->isConfigEnabled(new ContainerBuilder(), array());
+    }
+}
 
-        $r = new \ReflectionMethod('Symfony\Component\DependencyInjection\Extension\Extension', 'isConfigEnabled');
-        $r->setAccessible(true);
+class EnableableExtension extends Extension
+{
+    public function load(array $configs, ContainerBuilder $container)
+    {
+    }
 
-        $r->invoke($extension, $container, array());
+    public function isConfigEnabled(ContainerBuilder $container, array $config)
+    {
+        return parent::isConfigEnabled($container, $config);
     }
 }