8 files declare their use of MessengerTrait
- BlockPluginTrait.php in core/
lib/ Drupal/ Core/ Block/ BlockPluginTrait.php - ControllerBase.php in core/
lib/ Drupal/ Core/ Controller/ ControllerBase.php - EntityListBuilder.php in core/
lib/ Drupal/ Core/ Entity/ EntityListBuilder.php - FormBase.php in core/
lib/ Drupal/ Core/ Form/ FormBase.php - FormErrorHandler.php in core/
lib/ Drupal/ Core/ Form/ FormErrorHandler.php - MailManager.php in core/
lib/ Drupal/ Core/ Mail/ MailManager.php - MigrationState.php in core/
modules/ migrate_drupal/ src/ MigrationState.php - PluginBase.php in core/
lib/ Drupal/ Core/ Plugin/ PluginBase.php