Add support for keyed-call on arrays of fast elements

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 71a51aba156694736be332d5ea1bc765dd8683d9..6cee13bfc75c2303d0ec886977a3dcb1d89de87d 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -1705,6 +1705,7 @@ class Call V8_FINAL : public Expression {
     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) {
@@ -1756,6 +1757,7 @@ class Call V8_FINAL : public Expression {
         arguments_(arguments),
         pos_(pos),
         is_monomorphic_(false),
+        keyed_array_call_is_holey_(true),
         check_type_(RECEIVER_MAP_CHECK),
         return_id_(GetNextId(isolate)) { }
 
@@ -1765,6 +1767,7 @@ class Call V8_FINAL : public Expression {
   int pos_;
 
   bool is_monomorphic_;
+  bool keyed_array_call_is_holey_;
   CheckType check_type_;
   SmallMapList receiver_types_;
   Handle<JSFunction> target_;