Move public symbols to the root set.

src/contexts.cc

 // Copyright 2011 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/bootstrapper.h"
 #include "src/debug.h"
 #include "src/scopeinfo.h"
 
@@ skipping 106 matching lines @@
  * Lookups a property in an object environment, taking the unscopables into
  * account. This is used For HasBinding spec algorithms for ObjectEnvironment.
  */
 static Maybe<PropertyAttributes> UnscopableLookup(LookupIterator* it) {
   Isolate* isolate = it->isolate();
 
   Maybe<PropertyAttributes> attrs = JSReceiver::GetPropertyAttributes(it);
   DCHECK(attrs.has_value || isolate->has_pending_exception());
   if (!attrs.has_value || attrs.value == ABSENT) return attrs;
 
-  Handle<Symbol> unscopables_symbol(
-      isolate->native_context()->unscopables_symbol(), isolate);
+  Handle<Symbol> unscopables_symbol = isolate->factory()->unscopables_symbol();
   Handle<Object> receiver = it->GetReceiver();
   Handle<Object> unscopables;
   MaybeHandle<Object> maybe_unscopables =
       Object::GetProperty(receiver, unscopables_symbol);
   if (!maybe_unscopables.ToHandle(&unscopables)) {
     return Maybe<PropertyAttributes>();
   }
   if (!unscopables->IsSpecObject()) return attrs;
   Maybe<bool> blacklist = JSReceiver::HasProperty(
       Handle<JSReceiver>::cast(unscopables), it->name());
@@ skipping 349 matching lines @@
 bool Context::IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object) {
   // During bootstrapping we allow all objects to pass as global
   // objects. This is necessary to fix circular dependencies.
   return isolate->heap()->gc_state() != Heap::NOT_IN_GC ||
       isolate->bootstrapper()->IsActive() ||
       object->IsGlobalObject();
 }
 #endif
 
 } }  // namespace v8::internal