Add support for keyed-call on arrays of fast elements

src/ast.h

 // Copyright 2012 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 1687 matching lines @@
   ZoneList<Expression*>* arguments() const { return arguments_; }
   virtual int position() const V8_FINAL { return pos_; }
 
   // Type feedback information.
   TypeFeedbackId CallFeedbackId() const { return reuse(id()); }
   void RecordTypeFeedback(TypeFeedbackOracle* oracle, CallKind call_kind);
   virtual SmallMapList* GetReceiverTypes() V8_OVERRIDE {
     return &receiver_types_;
   }
   virtual bool IsMonomorphic() V8_OVERRIDE { return is_monomorphic_; }
+  bool KeyedArrayCallIsHoley() { return keyed_array_call_is_holey_; }
   CheckType check_type() const { return check_type_; }
 
   void set_string_check(Handle<JSObject> holder) {
     holder_ = holder;
     check_type_ = STRING_CHECK;
   }
 
   void set_number_check(Handle<JSObject> holder) {
     holder_ = holder;
     check_type_ = NUMBER_CHECK;
@@ skipping 31 matching lines @@
  protected:
   Call(Isolate* isolate,
        Expression* expression,
        ZoneList<Expression*>* arguments,
        int pos)
       : Expression(isolate),
         expression_(expression),
         arguments_(arguments),
         pos_(pos),
         is_monomorphic_(false),
+        keyed_array_call_is_holey_(true),
         check_type_(RECEIVER_MAP_CHECK),
         return_id_(GetNextId(isolate)) { }
 
  private:
   Expression* expression_;
   ZoneList<Expression*>* arguments_;
   int pos_;
 
   bool is_monomorphic_;
+  bool keyed_array_call_is_holey_;
   CheckType check_type_;
   SmallMapList receiver_types_;
   Handle<JSFunction> target_;
   Handle<JSObject> holder_;
   Handle<Cell> cell_;
 
   const BailoutId return_id_;
 };
 
 
@@ skipping 1476 matching lines @@
  private:
   Isolate* isolate_;
   Zone* zone_;
   Visitor visitor_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_