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

vendor/sebastian/comparator/src/ResourceComparator.php

@@ -0,0 +1,56 @@
+<?php
+/*
+ * This file is part of the Comparator package.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares resources for equality.
+ */
+class ResourceComparator extends Comparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param  mixed $expected The first value to compare
+     * @param  mixed $actual   The second value to compare
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return is_resource($expected) && is_resource($actual);
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param  mixed             $expected     The first value to compare
+     * @param  mixed             $actual       The second value to compare
+     * @param  float             $delta        The allowed numerical distance between two values to
+     *                                         consider them equal
+     * @param  bool              $canonicalize If set to TRUE, arrays are sorted before
+     *                                         comparison
+     * @param  bool              $ignoreCase   If set to TRUE, upper- and lowercasing is
+     *                                         ignored when comparing string values
+     * @throws ComparisonFailure Thrown when the comparison
+     *                                        fails. Contains information about the
+     *                                        specific errors that lead to the failure.
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        if ($actual != $expected) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $this->exporter->export($expected),
+                $this->exporter->export($actual)
+            );
+        }
+    }
+}