Arguments object has @@iterator

src/contexts.h

Index: src/contexts.h
diff --git a/src/contexts.h b/src/contexts.h
index 1ee5a6f89139b50833cba8807a57cb72f0e9f3c7..d107225ff38982ac823eeb8614415f84e3e993fd 100644
--- a/src/contexts.h
+++ b/src/contexts.h
@@ -189,7 +189,8 @@ enum BindingFlags {
   V(ITERATOR_RESULT_MAP_INDEX, Map, iterator_result_map) \
   V(MAP_ITERATOR_MAP_INDEX, Map, map_iterator_map) \
   V(SET_ITERATOR_MAP_INDEX, Map, set_iterator_map) \
-  V(ITERATOR_SYMBOL_INDEX, Symbol, iterator_symbol)
+  V(ITERATOR_SYMBOL_INDEX, Symbol, iterator_symbol) \
+  V(ARRAY_VALUES_ITERATOR_INDEX, JSFunction, array_values_iterator)
 
 // JSFunctions are pairs (context, function code), sometimes also called
 // closures. A Context object is used to represent function contexts and
@@ -364,6 +365,7 @@ class Context: public FixedArray {
     MAP_ITERATOR_MAP_INDEX,
     SET_ITERATOR_MAP_INDEX,
     ITERATOR_SYMBOL_INDEX,
+    ARRAY_VALUES_ITERATOR_INDEX,
 
     // Properties from here are treated as weak references by the full GC.
     // Scavenge treats them as strong references.