Enable stub generation using Hydrogen/Lithium (again)

src/rewriter.cc

Index: src/rewriter.cc
diff --git a/src/rewriter.cc b/src/rewriter.cc
index 2a98787177b614258727d3c793492a09bd75c42b..02907de60eb98d69f529b20a48d2aa305d2b5d86 100644
--- a/src/rewriter.cc
+++ b/src/rewriter.cc
@@ -43,7 +43,9 @@ class Processor: public AstVisitor {
         result_assigned_(false),
         is_set_(false),
         in_try_(false),
-        factory_(isolate(), zone) { }
+        factory_(Isolate::Current(), zone) {
+    InitializeAstVisitor();
+  }
 
   virtual ~Processor() { }
 
@@ -86,6 +88,8 @@ class Processor: public AstVisitor {
 #undef DEF_VISIT
 
   void VisitIterationStatement(IterationStatement* stmt);
+
+  DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
 };