MapCache simplification. It is now a FixedArray that maps number of properties to a WeakCell with...

src/objects-inl.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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 461 matching lines @@
     return static_cast<const uc16*>(start_)[index];
   }
 }
 
 
 Handle<Object> StringTableShape::AsHandle(Isolate* isolate, HashTableKey* key) {
   return key->AsHandle(isolate);
 }
 
 
-Handle<Object> MapCacheShape::AsHandle(Isolate* isolate, HashTableKey* key) {
-  return key->AsHandle(isolate);
-}
-
-
 Handle<Object> CompilationCacheShape::AsHandle(Isolate* isolate,
                                                HashTableKey* key) {
   return key->AsHandle(isolate);
 }
 
 
 Handle<Object> CodeCacheHashTableShape::AsHandle(Isolate* isolate,
                                                  HashTableKey* key) {
   return key->AsHandle(isolate);
 }
@@ skipping 2784 matching lines @@
 CAST_ACCESSOR(JSProxy)
 CAST_ACCESSOR(JSReceiver)
 CAST_ACCESSOR(JSRegExp)
 CAST_ACCESSOR(JSSet)
 CAST_ACCESSOR(JSSetIterator)
 CAST_ACCESSOR(JSTypedArray)
 CAST_ACCESSOR(JSValue)
 CAST_ACCESSOR(JSWeakMap)
 CAST_ACCESSOR(JSWeakSet)
 CAST_ACCESSOR(Map)
-CAST_ACCESSOR(MapCache)
 CAST_ACCESSOR(Name)
 CAST_ACCESSOR(NameDictionary)
 CAST_ACCESSOR(NormalizedMapCache)
 CAST_ACCESSOR(Object)
 CAST_ACCESSOR(ObjectHashTable)
 CAST_ACCESSOR(Oddball)
 CAST_ACCESSOR(OrderedHashMap)
 CAST_ACCESSOR(OrderedHashSet)
 CAST_ACCESSOR(PolymorphicCodeCacheHashTable)
 CAST_ACCESSOR(PropertyCell)
@@ skipping 4054 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_