Allow in-object properties in JSArrayBuffer.

src/objects-body-descriptors.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_BODY_DESCRIPTORS_H_
 #define V8_OBJECTS_BODY_DESCRIPTORS_H_
 
 #include "src/objects.h"
 
 namespace v8 {
@@ skipping 33 matching lines @@
                                      int start_offset, int end_offset);
 
   template <typename ObjectVisitor>
   static inline void IteratePointer(HeapObject* obj, int offset,
                                     ObjectVisitor* v);
 
   template <typename StaticVisitor>
   static inline void IteratePointer(Heap* heap, HeapObject* obj, int offset);
 
  protected:
-  // Returns true for all header fields.
+  // Returns true for all header and internal fields.
   static inline bool IsValidSlotImpl(HeapObject* obj, int offset);
 
+  // Treats all header and internal fields in the range as tagged.
   template <typename ObjectVisitor>
   static inline void IterateBodyImpl(HeapObject* obj, int start_offset,
                                      int end_offset, ObjectVisitor* v);
 
+  // Treats all header and internal fields in the range as tagged.
   template <typename StaticVisitor>
   static inline void IterateBodyImpl(Heap* heap, HeapObject* obj,
                                      int start_offset, int end_offset);
 };
 
 
 // This class describes a body of an object of a fixed size
 // in which all pointer fields are located in the [start_offset, end_offset)
 // interval.
 template <int start_offset, int end_offset, int size>
@@ skipping 59 matching lines @@
   static inline int SizeOf(Map* map, HeapObject* object);
 };
 
 
 typedef FlexibleBodyDescriptor<HeapObject::kHeaderSize> StructBodyDescriptor;
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_BODY_DESCRIPTORS_H_