14 files declare their use of PluginBase in Service Container 7
Plugin1A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin1/Plugin1A/Plugin1A.php
Plugin1B.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin1/Plugin1B/Plugin1B.php
Plugin2A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin2/Plugin2A/Plugin2A.php
Plugin2B.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin2/Plugin2B/Plugin2B.php
Plugin3A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin3/Plugin3A/Plugin3A.php
Plugin4A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin4/Plugin4A/Plugin4A.php
Plugin5A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_subtest/src/Plugin/Plugin5/Plugin5A/Plugin5A.php
Plugin5A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_test/src/Plugin/Plugin5/Plugin5A/Plugin5A.php
Plugin5B.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_subtest/src/Plugin/Plugin5/Plugin5B/Plugin5B.php
Plugin6A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_subtest/src/Plugin/Plugin6/Plugin6A/Plugin6A.php
Plugin6B.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_subtest/src/Plugin/Plugin6/Plugin6B/Plugin6B.php
Plugin7A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_subtest/src/Plugin/Plugin7/Plugin7A/Plugin7A.php
Plugin8A.php in modules/providers/service_container_annotation_discovery/tests/modules/service_container_annotation_discovery_subtest/src/Plugin/Plugin8/Plugin8A/Plugin8A.php