Merge branch '4.0' into 4.1

* 4.0:
  [Console] fix CS
  [OptionResolver] resolve arrays
  [TwigBridge] Fix missing path and separators in loader paths list on debug:twig output
  [PropertyInfo] Fix dock block lookup fallback loop
  [HttpFoundation] don't encode cookie name for BC
  improve deprecation messages
  minor #27858 [Console] changed warning verbosity; fixes typo (adrian-enspired)
  AppBundle->App.
  [DI] Fix dumping ignore-on-uninitialized references to synthetic services

Author: nicolas-grekas

Dumper/PhpDumper.php

@@ -1662,8 +1662,10 @@ private function getServiceCall(string $id, Reference $reference = null): string
             return '$this';
         }
 
-        if ($this->container->hasDefinition($id) && ($definition = $this->container->getDefinition($id)) && !$definition->isSynthetic()) {
-            if (null !== $reference && ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE === $reference->getInvalidBehavior()) {
+        if ($this->container->hasDefinition($id) && $definition = $this->container->getDefinition($id)) {
+            if ($definition->isSynthetic()) {
+                $code = sprintf('$this->get(\'%s\'%s)', $id, null !== $reference ? ', '.$reference->getInvalidBehavior() : '');
+            } elseif (null !== $reference && ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE === $reference->getInvalidBehavior()) {
                 $code = 'null';
                 if (!$definition->isShared()) {
                     return $code;

Tests/ContainerBuilderTest.php

@@ -1399,6 +1399,21 @@ public function testArgumentsHaveHigherPriorityThanBindings()
         $this->assertSame('via-bindings', $container->get('foo')->class2->identifier);
     }
 
+    public function testUninitializedSyntheticReference()
+    {
+        $container = new ContainerBuilder();
+        $container->register('foo', 'stdClass')->setPublic(true)->setSynthetic(true);
+        $container->register('bar', 'stdClass')->setPublic(true)->setShared(false)
+            ->setProperty('foo', new Reference('foo', ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE));
+
+        $container->compile();
+
+        $this->assertEquals((object) array('foo' => null), $container->get('bar'));
+
+        $container->set('foo', (object) array(123));
+        $this->assertEquals((object) array('foo' => (object) array(123)), $container->get('bar'));
+    }
+
     public function testIdCanBeAnObjectAsLongAsItCanBeCastToString()
     {
         $id = new Reference('another_service');

Tests/Dumper/PhpDumperTest.php

@@ -953,6 +953,29 @@ public function testDumpHandlesObjectClassNames()
         $this->assertInstanceOf('stdClass', $container->get('bar'));
     }
 
+    public function testUninitializedSyntheticReference()
+    {
+        $container = new ContainerBuilder();
+        $container->register('foo', 'stdClass')->setPublic(true)->setSynthetic(true);
+        $container->register('bar', 'stdClass')->setPublic(true)->setShared(false)
+            ->setProperty('foo', new Reference('foo', ContainerBuilder::IGNORE_ON_UNINITIALIZED_REFERENCE));
+
+        $container->compile();
+
+        $dumper = new PhpDumper($container);
+        eval('?>'.$dumper->dump(array(
+            'class' => 'Symfony_DI_PhpDumper_Test_UninitializedSyntheticReference',
+            'inline_class_loader_parameter' => 'inline_requires',
+        )));
+
+        $container = new \Symfony_DI_PhpDumper_Test_UninitializedSyntheticReference();
+
+        $this->assertEquals((object) array('foo' => null), $container->get('bar'));
+
+        $container->set('foo', (object) array(123));
+        $this->assertEquals((object) array('foo' => (object) array(123)), $container->get('bar'));
+    }
+
     /**
      * This test checks the trigger of a deprecation note and should not be removed in major releases.
      *