13 files declare their use of ExtendedInfoSensorPluginInterface in Monitoring 8

ContentEntityAggregatorSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/ContentEntityAggregatorSensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\ContentEntityAggregatorSensorPlugin.

CoreRequirementsSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/CoreRequirementsSensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\CoreRequirementsSensorPlugin.

DatabaseAggregatorSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/DatabaseAggregatorSensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\DatabaseAggregatorSensorPlugin.

DatabaseDiskUsagePlugin.php in src/Plugin/monitoring/SensorPlugin/DatabaseDiskUsagePlugin.php

GitDirtyTreeSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/GitDirtyTreeSensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\GitDirtyTreeSensorPlugin.

Redirect404SensorPlugin.php in src/Plugin/monitoring/SensorPlugin/Redirect404SensorPlugin.php

SolrDiskUsageSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/SolrDiskUsageSensorPlugin.php

SystemMemorySensorPlugin.php in src/Plugin/monitoring/SensorPlugin/SystemMemorySensorPlugin.php

TestSensorPlugin.php in modules/test/src/Plugin/monitoring/SensorPlugin/TestSensorPlugin.php

Contains \Drupal\monitoring_test\Plugin\monitoring\SensorPlugin\TestSensorPlugin.

UltimateCronErrorsSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/UltimateCronErrorsSensorPlugin.php

UserIntegritySensorPlugin.php in src/Plugin/monitoring/SensorPlugin/UserIntegritySensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\UserIntegritySensorPlugin.

ViewDisplayAggregatorSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/ViewDisplayAggregatorSensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\ViewDisplayAggregatorSensorPlugin.

WatchdogAggregatorSensorPlugin.php in src/Plugin/monitoring/SensorPlugin/WatchdogAggregatorSensorPlugin.php

Contains \Drupal\monitoring\Plugin\monitoring\SensorPlugin\WatchdogAggregatorSensorPlugin.