Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/translation/IdentityTranslator.php

@@ -0,0 +1,77 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation;
+
+/**
+ * IdentityTranslator does not translate anything.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+class IdentityTranslator implements TranslatorInterface
+{
+    private $selector;
+    private $locale;
+
+    /**
+     * Constructor.
+     *
+     * @param MessageSelector|null $selector The message selector for pluralization
+     *
+     * @api
+     */
+    public function __construct(MessageSelector $selector = null)
+    {
+        $this->selector = $selector ?: new MessageSelector();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setLocale($locale)
+    {
+        $this->locale = $locale;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function getLocale()
+    {
+        return $this->locale ?: \Locale::getDefault();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function trans($id, array $parameters = array(), $domain = null, $locale = null)
+    {
+        return strtr((string) $id, $parameters);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function transChoice($id, $number, array $parameters = array(), $domain = null, $locale = null)
+    {
+        return strtr($this->selector->choose((string) $id, (int) $number, $locale ?: $this->getLocale()), $parameters);
+    }
+}