PersistentSearchEverywhereContributorFilter<LanguageRef> (@NotNull Project project) { List<LanguageRef> items = LanguageRef.forAllLanguages(); GotoClassSymbolConfiguration persistentConfig = GotoClassSymbolConfiguration.getInstance(project); return new PersistentSearchEverywhereContributorFilter<>(items, persistentConfig, LanguageRef::getDisplayName, LanguageRef::getIcon); }