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

vendor/symfony/console/Formatter/OutputFormatterInterface.php

@@ -0,0 +1,83 @@
+<?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\Console\Formatter;
+
+/**
+ * Formatter interface for console output.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ *
+ * @api
+ */
+interface OutputFormatterInterface
+{
+    /**
+     * Sets the decorated flag.
+     *
+     * @param bool $decorated Whether to decorate the messages or not
+     *
+     * @api
+     */
+    public function setDecorated($decorated);
+
+    /**
+     * Gets the decorated flag.
+     *
+     * @return bool true if the output will decorate messages, false otherwise
+     *
+     * @api
+     */
+    public function isDecorated();
+
+    /**
+     * Sets a new style.
+     *
+     * @param string                        $name  The style name
+     * @param OutputFormatterStyleInterface $style The style instance
+     *
+     * @api
+     */
+    public function setStyle($name, OutputFormatterStyleInterface $style);
+
+    /**
+     * Checks if output formatter has style with specified name.
+     *
+     * @param string $name
+     *
+     * @return bool
+     *
+     * @api
+     */
+    public function hasStyle($name);
+
+    /**
+     * Gets style options from style with specified name.
+     *
+     * @param string $name
+     *
+     * @return OutputFormatterStyleInterface
+     *
+     * @api
+     */
+    public function getStyle($name);
+
+    /**
+     * Formats a message according to the given styles.
+     *
+     * @param string $message The message to style
+     *
+     * @return string The styled message
+     *
+     * @api
+     */
+    public function format($message);
+}