Merge changes up to V8 version 2.1.3 into the partial snapshots

src/handles.h

 // Copyright 2006-2008 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 220 matching lines @@
 Handle<Object> SetElement(Handle<JSObject> object,
                           uint32_t index,
                           Handle<Object> value);
 
 Handle<Object> GetProperty(Handle<JSObject> obj,
                            const char* name);
 
 Handle<Object> GetProperty(Handle<Object> obj,
                            Handle<Object> key);
 
+Handle<Object> GetElement(Handle<Object> obj,
+                          uint32_t index);
+
 Handle<Object> GetPropertyWithInterceptor(Handle<JSObject> receiver,
                                           Handle<JSObject> holder,
                                           Handle<String> name,
                                           PropertyAttributes* attributes);
 
 Handle<Object> GetPrototype(Handle<Object> obj);
 
 Handle<Object> SetPrototype(Handle<JSObject> obj, Handle<Object> value);
 
 // Return the object's hidden properties object. If the object has no hidden
@@ skipping 34 matching lines @@
                                           KeyCollectionType type);
 Handle<JSArray> GetKeysFor(Handle<JSObject> object);
 Handle<FixedArray> GetEnumPropertyKeys(Handle<JSObject> object,
                                        bool cache_result);
 
 // Computes the union of keys and return the result.
 // Used for implementing "for (n in object) { }"
 Handle<FixedArray> UnionOfKeys(Handle<FixedArray> first,
                                Handle<FixedArray> second);
 
-Handle<String> SubString(Handle<String> str, int start, int end);
+Handle<String> SubString(Handle<String> str,
+                         int start,
+                         int end,
+                         PretenureFlag pretenure = NOT_TENURED);
 
 
 // Sets the expected number of properties for the function's instances.
 void SetExpectedNofProperties(Handle<JSFunction> func, int nof);
 
 // Sets the prototype property for a function instance.
 void SetPrototypeProperty(Handle<JSFunction> func, Handle<JSObject> value);
 
 // Sets the expected number of properties based on estimate from compiler.
 void SetExpectedNofPropertiesFromEstimate(Handle<SharedFunctionInfo> shared,
@@ skipping 59 matching lines @@
  private:
   bool has_been_transformed_;  // Tells whether the object has been transformed.
   int unused_property_fields_;  // Captures the unused number of field.
   Handle<JSObject> object_;    // The object being optimized.
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HANDLES_H_