Introduce a new AccessorPair type for handling JavaScript accessors.

src/factory.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
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@@ skipping 51 matching lines @@
 
   Handle<ObjectHashTable> NewObjectHashTable(int at_least_space_for);
 
   Handle<DescriptorArray> NewDescriptorArray(int number_of_descriptors);
   Handle<DeoptimizationInputData> NewDeoptimizationInputData(
       int deopt_entry_count,
       PretenureFlag pretenure);
   Handle<DeoptimizationOutputData> NewDeoptimizationOutputData(
       int deopt_entry_count,
       PretenureFlag pretenure);
+  Handle<AccessorPair> NewAccessorPair();

[Kevin Millikin (Chromium), 2012/01/10 08:57:30]

Maybe a comment here and also in heap.h about why these are always pretenured
(I'm not sure why they are).

I'm also not sure why we pretenure all structs.  It's not obviously best.

[Sven Panne, 2012/01/10 09:45:03]

Done.

 
   Handle<String> LookupSymbol(Vector<const char> str);
   Handle<String> LookupSymbol(Handle<String> str);
   Handle<String> LookupAsciiSymbol(Vector<const char> str);
   Handle<String> LookupAsciiSymbol(Handle<SeqAsciiString>,
                                    int from,
                                    int length);
   Handle<String> LookupTwoByteSymbol(Vector<const uc16> str);
   Handle<String> LookupAsciiSymbol(const char* str) {
     return LookupSymbol(CStrVector(str));
@@ skipping 406 matching lines @@
   // Update the map cache in the global context with (keys, map)
   Handle<MapCache> AddToMapCache(Handle<Context> context,
                                  Handle<FixedArray> keys,
                                  Handle<Map> map);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FACTORY_H_