756         if (!result.IsJust()) return Nothing<bool>();  in HasProperty()
764         if (!result.IsJust()) return Nothing<bool>();  in HasProperty()
1358     if (result.IsJust() && result.FromJust() != ABSENT) return result;  in GetPropertyAttributesWithFailedAccessCheck()
4098           if (!maybe_attributes.IsJust()) return Nothing<bool>();  in SetPropertyInternal()
5196   DCHECK(maybe.IsJust());  in AddProperty()
5203             .IsJust());  in AddProperty()
5460         if (!result.IsJust()) return result;  in GetPropertyAttributes()
6083   DCHECK(maybe.IsJust());  in HasHiddenProperties()
6267         if (result.IsJust()) return result;  in DeleteProperty()
6432     if (!maybe.IsJust()) return MaybeHandle<Object>();  in DefineProperties()
6462     if (!status.IsJust()) return MaybeHandle<Object>();  in DefineProperties()
9006     CHECK(GetPropertyAttributes(it).IsJust());  in DefineAccessor()
9065   CHECK(GetPropertyAttributes(&it).IsJust());  in SetAccessor()
15061   CHECK(JSReceiver::GetPropertyAttributes(&it).IsJust());  in GetOldValue()
16290   return maybe_result.IsJust() ? Just(it.state() == LookupIterator::ACCESSOR)  in HasRealNamedCallbackProperty()