Fix some minor nits:

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/cpu.h"
@@ skipping 927 matching lines @@
   CLASS_LIST_TYPED_DATA(REGISTER_EXT_TYPED_DATA_CLASS);
 #undef REGISTER_EXT_TYPED_DATA_CLASS
   // Register Float32x4 and Uint32x4 in the object store.
   cls = Class::New<Float32x4>();
   object_store->set_float32x4_class(cls);
   RegisterPrivateClass(cls, Symbols::_Float32x4(), lib);
   cls = Class::New<Uint32x4>();
   object_store->set_uint32x4_class(cls);
   RegisterPrivateClass(cls, Symbols::_Uint32x4(), lib);
 
-  cls = Class::New<Instance>(Symbols::Float32x4(), script,
-                             Scanner::kDummyTokenIndex);
+  cls = Class::New<Instance>(kIllegalCid);
   RegisterClass(cls, Symbols::Float32x4(), lib);
   pending_classes.Add(cls, Heap::kOld);
   type = Type::NewNonParameterizedType(cls);
   object_store->set_float32x4_type(type);
 
-  cls = Class::New<Instance>(Symbols::Uint32x4(), script,
-                             Scanner::kDummyTokenIndex);
+  cls = Class::New<Instance>(kIllegalCid);
+  RegisterClass(cls, Symbols::Uint32x4(), lib);
   pending_classes.Add(cls, Heap::kOld);
   type = Type::NewNonParameterizedType(cls);
   object_store->set_uint32x4_type(type);
 
   object_store->set_typed_data_classes(typed_data_classes);
 
   // 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);
@@ skipping 12201 matching lines @@
   }
   return result.raw();
 }
 
 
 const char* WeakProperty::ToCString() const {
   return "_WeakProperty";
 }
 
 }  // namespace dart