--print-scopes should ignore native code, even ones parsed lazily.

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/accessors.h"
 #include "src/bootstrapper.h"
 #include "src/messages.h"
 #include "src/parser.h"
@@ skipping 265 matching lines @@
     AstNodeFactory ast_node_factory(info->ast_value_factory());
     if (!top->AllocateVariables(info, &ast_node_factory)) {
       DCHECK(top->pending_error_handler_.has_pending_error());
       top->pending_error_handler_.ThrowPendingError(info->isolate(),
                                                     info->script());
       return false;
     }
   }
 
 #ifdef DEBUG
-  if (info->isolate()->bootstrapper()->IsActive()
-          ? FLAG_print_builtin_scopes
-          : FLAG_print_scopes) {
-    scope->Print();
+  bool native = info->isolate()->bootstrapper()->IsActive();
+  if (!info->shared_info().is_null()) {
+    Object* script = info->shared_info()->script();
+    native = script->IsScript() &&
+             Script::cast(script)->type()->value() == Script::TYPE_NATIVE;
   }
+
+  if (native ? FLAG_print_builtin_scopes : FLAG_print_scopes) scope->Print();
 #endif
 
   info->set_scope(scope);
   return true;
 }
 
 
 void Scope::Initialize() {
   bool subclass_constructor = IsSubclassConstructor(function_kind_);
   DCHECK(!already_resolved());
@@ skipping 1263 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 internal
 }  // namespace v8