[cleanup] Introduce PropertyFilter

src/debug/debug-scopes.cc

 // Copyright 2015 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/debug/debug-scopes.h"
 
 #include "src/ast/scopes.h"
 #include "src/debug/debug.h"
 #include "src/frames-inl.h"
 #include "src/globals.h"
@@ skipping 742 matching lines @@
   for (int i = 0; i < local_count; ++i) {
     if (scope_info->LocalIsSynthetic(first_context_var + i)) continue;
     int context_index = Context::MIN_CONTEXT_SLOTS + i;
     Handle<Object> value = Handle<Object>(context->get(context_index), isolate);
     // Reflect variables under TDZ as undefined in scope object.
     if (value->IsTheHole()) continue;
     // This should always succeed.
     // TODO(verwaest): Use AddDataProperty instead.
     JSObject::SetOwnPropertyIgnoreAttributes(
         scope_object, handle(String::cast(scope_info->get(i + start))), value,
-        ::NONE)
+        NONE)
         .Check();
   }
 }
 
 
 bool ScopeIterator::CopyContextExtensionToScopeObject(
     Handle<JSObject> extension, Handle<JSObject> scope_object,
     JSReceiver::KeyCollectionType type) {
   Handle<FixedArray> keys;
   ASSIGN_RETURN_ON_EXCEPTION_VALUE(
-      isolate_, keys, JSReceiver::GetKeys(extension, type), false);
+      isolate_, keys, JSReceiver::GetKeys(extension, type, ENUMERABLE_STRINGS),
+      false);
 
   for (int i = 0; i < keys->length(); i++) {
     // Names of variables introduced by eval are strings.
     DCHECK(keys->get(i)->IsString());
     Handle<String> key(String::cast(keys->get(i)));
     Handle<Object> value;
     ASSIGN_RETURN_ON_EXCEPTION_VALUE(
         isolate_, value, Object::GetPropertyOrElement(extension, key), false);
     RETURN_ON_EXCEPTION_VALUE(
         isolate_, JSObject::SetOwnPropertyIgnoreAttributes(
             scope_object, key, value, NONE), false);
   }
   return true;
 }
 
 }  // namespace internal
 }  // namespace v8