Create parent class loader for dex2oat

This means we also put the class loader in the app image so that it
can be used for verifying the dex file order.

Bug: 22858531
Change-Id: I30761b59421c8a24cffd62b469134b25d2929e2e
diff --git a/runtime/common_runtime_test.cc b/runtime/common_runtime_test.cc
index b6b5141..f705a50 100644
--- a/runtime/common_runtime_test.cc
+++ b/runtime/common_runtime_test.cc
@@ -553,7 +553,8 @@
 
   Thread* self = Thread::Current();
   jobject class_loader = Runtime::Current()->GetClassLinker()->CreatePathClassLoader(self,
-                                                                                     class_path);
+                                                                                     class_path,
+                                                                                     nullptr);
   self->SetClassLoaderOverride(class_loader);
   return class_loader;
 }