Merge branch '3.4' into 4.0

* 3.4:
  Clean up
  Update return type in docblock.
  PHP CS Fixer: no need to exclude xml and yml files
  PHP CS Fixer: no need to exclude json file
  Update LICENSE year... forever
  fixed some deprecation messages
  fixed CS
  Fixes for Oracle in PdoSessionHandler
  fixed some deprecation messages
  fixed some deprecation messages
  fixed some deprecation messages
  fixed some deprecation messages
  [TwigBundle/Brige] catch missing requirements to throw meaningful exceptions
  [HttpKernel] Call Response->setPrivate() instead of sending raw header() when session is started
  [FrameworkBundle] Make cache:clear "atomic" and consistent with cache:warmup
  Suggest to write an implementation if the interface cannot be autowired
  [Debug] Skip DebugClassLoader checks for already parsed files
  [2.7][DX] Use constant message contextualisation for deprecations
  Remove group options without data and fix normalization
  Remove redundant translation path

Author: nicolas-grekas

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2004-2017 Fabien Potencier
+Copyright (c) 2004-present Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

UndefinedCallableHandler.php

@@ -0,0 +1,76 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig;
+
+use Twig\Error\SyntaxError;
+
+/**
+ * @internal
+ */
+class UndefinedCallableHandler
+{
+    private static $filterComponents = array(
+        'humanize' => 'form',
+        'trans' => 'translation',
+        'transchoice' => 'translation',
+        'yaml_encode' => 'yaml',
+        'yaml_dump' => 'yaml',
+    );
+
+    private static $functionComponents = array(
+        'asset' => 'asset',
+        'asset_version' => 'asset',
+        'dump' => 'debug-bundle',
+        'expression' => 'expression-language',
+        'form_widget' => 'form',
+        'form_errors' => 'form',
+        'form_label' => 'form',
+        'form_row' => 'form',
+        'form_rest' => 'form',
+        'form' => 'form',
+        'form_start' => 'form',
+        'form_end' => 'form',
+        'csrf_token' => 'form',
+        'logout_url' => 'security-http',
+        'logout_path' => 'security-http',
+        'is_granted' => 'security-core',
+        'link' => 'web-link',
+        'preload' => 'web-link',
+        'dns_prefetch' => 'web-link',
+        'preconnect' => 'web-link',
+        'prefetch' => 'web-link',
+        'prerender' => 'web-link',
+        'workflow_can' => 'workflow',
+        'workflow_transitions' => 'workflow',
+        'workflow_has_marked_place' => 'workflow',
+        'workflow_marked_places' => 'workflow',
+    );
+
+    public static function onUndefinedFilter($name)
+    {
+        if (!isset(self::$filterComponents[$name])) {
+            return false;
+        }
+
+        // Twig will append the source context to the message, so that it will end up being like "[...] Unknown filter "%s" in foo.html.twig on line 123."
+        throw new SyntaxError(sprintf('Did you forget to run "composer require symfony/%s"? Unknown filter "%s".', $name, self::$filterComponents[$name]));
+    }
+
+    public static function onUndefinedFunction($name)
+    {
+        if (!isset(self::$functionComponents[$name])) {
+            return false;
+        }
+
+        throw new SyntaxError(sprintf('Did you forget to run "composer require symfony/%s"? Unknown function "%s".', $name, self::$functionComponents[$name]));
+    }
+}