Allow in-object properties in JSCollections, JSWeakCollections and JSRegExp.

src/objects.h

 // Copyright 2012 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_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 9828 matching lines @@
   static void Initialize(Handle<JSWeakCollection> collection, Isolate* isolate);
   static void Set(Handle<JSWeakCollection> collection, Handle<Object> key,
                   Handle<Object> value, int32_t hash);
   static bool Delete(Handle<JSWeakCollection> collection, Handle<Object> key,
                      int32_t hash);
 
   static const int kTableOffset = JSObject::kHeaderSize;
   static const int kNextOffset = kTableOffset + kPointerSize;
   static const int kSize = kNextOffset + kPointerSize;
 
-  class BodyDescriptor;
+  // Visiting policy defines whether the table and next collection fields
+  // should be visited or not.
+  enum BodyVisitingPolicy { kVisitStrong, kVisitWeak };
+
+  // Iterates the function object according to the visiting policy.
+  template <BodyVisitingPolicy>
+  class BodyDescriptorImpl;
+
+  // Visit the whole object.
+  typedef BodyDescriptorImpl<kVisitStrong> BodyDescriptor;
+
+  // Don't visit table and next collection fields.
+  typedef BodyDescriptorImpl<kVisitWeak> BodyDescriptorWeak;
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSWeakCollection);
 };
 
 
 // The JSWeakMap describes EcmaScript Harmony weak maps
 class JSWeakMap: public JSWeakCollection {
  public:
   DECLARE_CAST(JSWeakMap)
@@ skipping 878 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_