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

vendor/phpspec/prophecy/spec/Prophecy/Exception/Prediction/NoCallsExceptionSpec.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace spec\Prophecy\Exception\Prediction;
+
+use PhpSpec\ObjectBehavior;
+
+class NoCallsExceptionSpec extends ObjectBehavior
+{
+    /**
+     * @param \Prophecy\Prophecy\ObjectProphecy $objectProphecy
+     * @param \Prophecy\Prophecy\MethodProphecy $methodProphecy
+     */
+    function let($objectProphecy, $methodProphecy)
+    {
+        $methodProphecy->getObjectProphecy()->willReturn($objectProphecy);
+
+        $this->beConstructedWith('message', $methodProphecy);
+    }
+
+    function it_is_PredictionException()
+    {
+        $this->shouldHaveType('Prophecy\Exception\Prediction\PredictionException');
+    }
+
+    function it_extends_MethodProphecyException()
+    {
+        $this->shouldHaveType('Prophecy\Exception\Prophecy\MethodProphecyException');
+    }
+}