Implement latest rules prohibiting some self referencing typedefs.

runtime/vm/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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 637 matching lines @@
 
   bool is_finalized() const {
     return raw_ptr()->class_state_ == RawClass::kFinalized;
   }
   void set_is_finalized() const;
 
   bool is_prefinalized() const {
     return raw_ptr()->class_state_ == RawClass::kPreFinalized;
   }
 
+  void set_is_prefinalized() const;
+
   bool is_const() const {
     return raw_ptr()->is_const_;
   }
   void set_is_const() const;
 
   int num_native_fields() const {
     return raw_ptr()->num_native_fields_;
   }
   void set_num_native_fields(int value) const {
     raw_ptr()->num_native_fields_ = value;
@@ skipping 4223 matching lines @@
 }
 
 
 intptr_t Stackmap::SizeInBits() const {
   return (Smi::Value(raw_ptr()->bitmap_size_in_bytes_) * kBitsPerByte);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_