ES6: Desugaring of instanceof to support @@hasInstance

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 87b6a910a458bb231687a0a4fb268d0194f99865..f13b673d4206e5470886d68f80cb2d9686f91af3 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -659,11 +659,14 @@ class ParserTraits {
   Expression* RewriteYieldStar(
       Expression* generator, Expression* expression, int pos);
 
+  Expression* RewriteInstanceof(Expression* lhs, Expression* rhs, int pos);
+
  private:
   Parser* parser_;
 
   void BuildIteratorClose(ZoneList<Statement*>* statements, Variable* iterator,
                           Maybe<Variable*> input, Maybe<Variable*> output);
+  Statement* CheckCallable(Variable* var, Expression* error);
 };