Fix bug with guarded fields and deserialization.

runtime/vm/raw_object.h

 // 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.
 
 #ifndef VM_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/token.h"
@@ skipping 458 matching lines @@
     kFinalized,  // Class parsed, finalized and ready for use.
   };
 
  private:
   RAW_HEAP_OBJECT_IMPLEMENTATION(Class);
 
   RawObject** from() { return reinterpret_cast<RawObject**>(&ptr()->name_); }
   RawString* name_;
   RawArray* functions_;
   RawArray* fields_;
+  RawArray* offset_in_words_to_field_;
   RawGrowableObjectArray* closure_functions_;  // Local functions and literals.
   RawArray* interfaces_;  // Array of AbstractType.
   RawGrowableObjectArray* direct_subclasses_;  // Array of Class.
   RawScript* script_;
   RawLibrary* library_;
   RawTypeArguments* type_parameters_;  // Array of TypeParameter.
   RawAbstractType* super_type_;
   RawType* mixin_;  // Generic mixin type, e.g. M<T>, not M<int>.
   RawClass* patch_class_;
   RawFunction* signature_function_;  // Associated function for signature class.
@@ skipping 1224 matching lines @@
   // Make sure this is updated when new TypedData types are added.
   ASSERT(kTypedDataInt8ArrayViewCid == kTypedDataInt8ArrayCid + 12);
   ASSERT(kExternalTypedDataInt8ArrayCid == kTypedDataInt8ArrayViewCid + 13);
   ASSERT(kNullCid == kExternalTypedDataInt8ArrayCid + 12);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_