6 files declare their use of Connection in Drupal 9
- Connection.php in core/
modules/ system/ tests/ modules/ database_statement_monitoring_test/ src/ mysql/ Connection.php - Connection.php in core/
modules/ system/ tests/ modules/ driver_test/ src/ Driver/ Database/ DrivertestMysql/ Connection.php - Connection.php in core/
modules/ system/ tests/ modules/ driver_test/ src/ Driver/ Database/ DrivertestMysqlDeprecatedVersion/ Connection.php - ConnectionTest.php in core/
tests/ Drupal/ Tests/ Core/ Database/ Driver/ mysql/ ConnectionTest.php - Tasks.php in core/
lib/ Drupal/ Core/ Database/ Driver/ mysql/ Install/ Tasks.php - TasksTest.php in core/
tests/ Drupal/ Tests/ Core/ Database/ Driver/ mysql/ install/ TasksTest.php