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

vendor/phpspec/prophecy/spec/Prophecy/Doubler/ClassPatch/MagicCallPatchSpec.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace spec\Prophecy\Doubler\ClassPatch;
+
+use PhpSpec\ObjectBehavior;
+use Prophecy\Argument;
+use Prophecy\Doubler\Generator\Node\MethodNode;
+
+class MagicCallPatchSpec extends ObjectBehavior
+{
+    function it_is_a_patch()
+    {
+        $this->shouldBeAnInstanceOf('Prophecy\Doubler\ClassPatch\ClassPatchInterface');
+    }
+
+    /**
+     * @param \Prophecy\Doubler\Generator\Node\ClassNode $node
+     */
+    function it_supports_anything($node)
+    {
+        $this->supports($node)->shouldReturn(true);
+    }
+
+    /**
+     * @param \Prophecy\Doubler\Generator\Node\ClassNode $node
+     */
+    function it_discovers_api_using_phpdoc($node)
+    {
+        $node->getParentClass()->willReturn('spec\Prophecy\Doubler\ClassPatch\MagicalApi');
+
+        $node->addMethod(new MethodNode('undefinedMethod'))->shouldBeCalled();
+
+        $this->apply($node);
+    }
+
+    /**
+     * @param \Prophecy\Doubler\Generator\Node\ClassNode $node
+     */
+    function it_ignores_existing_methods($node)
+    {
+        $node->getParentClass()->willReturn('spec\Prophecy\Doubler\ClassPatch\MagicalApiExtended');
+
+        $node->addMethod(new MethodNode('undefinedMethod'))->shouldBeCalled();
+        $node->addMethod(new MethodNode('definedMethod'))->shouldNotBeCalled();
+
+        $this->apply($node);
+    }
+
+    function it_has_50_priority()
+    {
+        $this->getPriority()->shouldReturn(50);
+    }
+}
+
+/**
+ * @method void undefinedMethod()
+ */
+class MagicalApi
+{
+    /**
+     * @return void
+     */
+    public function definedMethod()
+    {
+
+    }
+}
+
+/**
+ * @method void undefinedMethod()
+ * @method void definedMethod()
+ */
+class MagicalApiExtended extends MagicalApi
+{
+
+}