6 files declare their use of LoggerInterface in Service Container 7

LoggerBase.php in src/Logger/LoggerBase.php

Contains \Drupal\service_container\Logger\LoggerBase.

LoggerChannel.php in src/Logger/LoggerChannel.php

Contains \Drupal\service_container\Logger\LoggerChannel.

LoggerChannelFactory.php in src/Logger/LoggerChannelFactory.php

Contains \Drupal\service_container\Logger\LoggerChannelFactory.

LoggerChannelFactoryInterface.php in lib/Drupal/Core/Logger/LoggerChannelFactoryInterface.php

Contains \Drupal\Core\Logger\LoggerChannelFactoryInterface.

LoggerChannelInterface.php in lib/Drupal/Core/Logger/LoggerChannelInterface.php

Contains \Drupal\Core\Logger\LoggerChannelInterface.

WatchdogLogger.php in src/Logger/WatchdogLogger.php

Contains \Drupal\service_container\Logger\WatchdogLogger.