Fix for issue 2233

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 2731 matching lines @@
   static const int kChunkSize = sizeof(Chunk);
 
   Chunk GetChunkAt(intptr_t i) const {
     return *ChunkAddr(i);
   }
 
   void SetChunkAt(intptr_t i, Chunk newValue) const {
     *ChunkAddr(i) = newValue;
   }
 
+  // Returns the number of chunks in use.
   intptr_t Length() const {
     intptr_t signed_length = raw_ptr()->signed_length_;
     return Utils::Abs(signed_length);
   }
 
   // SetLength does not change the sign.
   void SetLength(intptr_t length) const {
     ASSERT(length >= 0);
     bool is_negative = IsNegative();
     raw_ptr()->signed_length_ = length;
@@ skipping 1133 matching lines @@
 }
 
 
 intptr_t Stackmap::SizeInBits() const {
   return (Smi::Value(raw_ptr()->bitmap_size_in_bytes_) * kBitsPerByte);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_