Take ast node id counting away from Isolate.

src/scopes.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/scopes.h"
 
 #include "src/accessors.h"
 #include "src/bootstrapper.h"
@@ skipping 249 matching lines @@
 
   // Traverse the scope tree up to the first unresolved scope or the global
   // scope and start scope resolution and variable allocation from that scope.
   while (!top->is_global_scope() &&
          !top->outer_scope()->already_resolved()) {
     top = top->outer_scope();
   }
 
   // Allocate the variables.
   {
-    // Passing NULL as AstValueFactory is ok, because AllocateVariables doesn't
-    // need to create new strings or values.
-    AstNodeFactory<AstNullVisitor> ast_node_factory(info->zone(), NULL);
+    AstNodeFactory<AstNullVisitor> ast_node_factory(
+        info->zone(), info->ast_value_factory(), info->ast_node_id_gen());
     if (!top->AllocateVariables(info, &ast_node_factory)) return false;
   }
 
 #ifdef DEBUG
   if (info->isolate()->bootstrapper()->IsActive()
           ? FLAG_print_builtin_scopes
           : FLAG_print_scopes) {
     scope->Print();
   }
 
@@ skipping 1111 matching lines @@
 }
 
 
 int Scope::ContextLocalCount() const {
   if (num_heap_slots() == 0) return 0;
   return num_heap_slots() - Context::MIN_CONTEXT_SLOTS -
       (function_ != NULL && function_->proxy()->var()->IsContextSlot() ? 1 : 0);
 }
 
 } }  // namespace v8::internal