Fix http://dartbug.com/23578:

runtime/vm/raw_object_snapshot.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 "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 #include "vm/visitor.h"
@@ skipping 704 matching lines @@
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (func.raw()->to_snapshot() - func.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     (*reader->PassiveObjectHandle()) = reader->ReadObjectRef();
     func.StorePointer((func.raw()->from() + i),
                       reader->PassiveObjectHandle()->raw());
   }
 
   // Initialize all fields that are not part of the snapshot.
+  func.ClearICDataArray();
   func.ClearCode();
-  func.set_ic_data_array(Object::null_array());
   return func.raw();
 }
 
 
 void RawFunction::WriteTo(SnapshotWriter* writer,
                           intptr_t object_id,
                           Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(((kind == Snapshot::kScript) &&
           !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this))) ||
@@ skipping 2210 matching lines @@
     // We do not allow objects with native fields in an isolate message.
     writer->SetWriteException(Exceptions::kArgument,
                               "Illegal argument in isolate message"
                               " : (object is a UserTag)");
   } else {
     UNREACHABLE();
   }
 }
 
 }  // namespace dart