Provide an Expando implementation for the VM.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
@@ skipping 606 matching lines @@
   RegisterClass(cls, name, core_impl_lib);
   pending_classes.Add(cls, Heap::kOld);
   // Super type set below, after Object is allocated.
 
   cls = Class::New<JSRegExp>();
   object_store->set_jsregexp_class(cls);
   name = Symbols::JSSyntaxRegExp();
   RegisterClass(cls, name, core_impl_lib);
   pending_classes.Add(cls, Heap::kOld);
 
-  cls = Class::New<WeakProperty>();
-  object_store->set_weak_property_class(cls);
-  name = Symbols::WeakProperty();
-  RegisterClass(cls, name, core_impl_lib);
-  pending_classes.Add(cls, Heap::kOld);
-
   // Initialize the base interfaces used by the core VM classes.
   const Script& script = Script::Handle(Bootstrap::LoadCoreScript(false));
 
   // Allocate and initialize the Object class and type.  The Object
   // class and ByteArray subclasses are the only pre-allocated,
   // non-interface classes in the core library.
   cls = Class::New<Instance>();
   object_store->set_object_class(cls);
   name = Symbols::Object();
   cls.set_name(name);
@@ skipping 97 matching lines @@
   cls = Class::New<ExternalFloat32Array>();
   object_store->set_external_float32_array_class(cls);
   name = Symbols::_ExternalFloat32Array();
   RegisterPrivateClass(cls, name, core_lib);
 
   cls = Class::New<ExternalFloat64Array>();
   object_store->set_external_float64_array_class(cls);
   name = Symbols::_ExternalFloat64Array();
   RegisterPrivateClass(cls, name, core_lib);
 
+  cls = Class::New<WeakProperty>();
+  object_store->set_weak_property_class(cls);
+  name = Symbols::WeakProperty();
+  RegisterClass(cls, name, core_lib);
+
   // Set the super type of class Stacktrace to Object type so that the
   // 'toString' method is implemented.
   cls = object_store->stacktrace_class();
   cls.set_super_type(type);
 
   cls = CreateAndRegisterInterface("Function", script, core_lib);
   pending_classes.Add(cls, Heap::kOld);
   type = Type::NewNonParameterizedType(cls);
   object_store->set_function_interface(type);
 
@@ skipping 10381 matching lines @@
   }
   return result.raw();
 }
 
 
 const char* WeakProperty::ToCString() const {
   return "WeakProperty";
 }
 
 }  // namespace dart