Fix background compilation crashes due to allocation of types in new space. Remove default argument…

runtime/lib/object.cc

Index: runtime/lib/object.cc
diff --git a/runtime/lib/object.cc b/runtime/lib/object.cc
index 609a87d3537e06e9818b5df3854cffdafd5fd622..95f2661504288c5eb831dd50deb2de9ec5995b9c 100644
--- a/runtime/lib/object.cc
+++ b/runtime/lib/object.cc
@@ -265,7 +265,8 @@ DEFINE_NATIVE_ENTRY(Object_as, 3) {
     if (!type.IsInstantiated()) {
       // Instantiate type before reporting the error.
       const AbstractType& instantiated_type = AbstractType::Handle(
-          type.InstantiateFrom(instantiator_type_arguments, NULL));
+          type.InstantiateFrom(instantiator_type_arguments, NULL,
+                               NULL, NULL, Heap::kNew));
       // Note that instantiated_type may be malformed.
       type_name = instantiated_type.UserVisibleName();
     } else {