Backport @10366 to 3.6

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
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 36 matching lines @@
   // Allocate a new fixed array with non-existing entries (the hole).
   Handle<FixedArray> NewFixedArrayWithHoles(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Allocate a new uninitialized fixed double array.
   Handle<FixedArray> NewFixedDoubleArray(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
-  Handle<NumberDictionary> NewNumberDictionary(int at_least_space_for);
+  Handle<SeededNumberDictionary> NewSeededNumberDictionary(
+      int at_least_space_for);
+
+  Handle<UnseededNumberDictionary> NewUnseededNumberDictionary(
+      int at_least_space_for);
 
   Handle<StringDictionary> NewStringDictionary(int at_least_space_for);
 
   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(
@@ skipping 337 matching lines @@
 
   Handle<JSMessageObject> NewJSMessageObject(
       Handle<String> type,
       Handle<JSArray> arguments,
       int start_position,
       int end_position,
       Handle<Object> script,
       Handle<Object> stack_trace,
       Handle<Object> stack_frames);
 
-  Handle<NumberDictionary> DictionaryAtNumberPut(
-      Handle<NumberDictionary>,
+  Handle<SeededNumberDictionary> DictionaryAtNumberPut(
+      Handle<SeededNumberDictionary>,
+      uint32_t key,
+      Handle<Object> value);
+
+  Handle<UnseededNumberDictionary> DictionaryAtNumberPut(
+      Handle<UnseededNumberDictionary>,
       uint32_t key,
       Handle<Object> value);
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared);
 #endif
 
   // Return a map using the map cache in the global context.
   // The key the an ordered set of property names.
   Handle<Map> ObjectLiteralMapFromCache(Handle<Context> context,
@@ skipping 35 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_