6 string references to 'Plugin' in Drupal 9

block.schema.yml in core/modules/block/config/schema/block.schema.yml

core/modules/block/config/schema/block.schema.yml

ComposerProjectTemplatesTest::testTemplateCreateProject in core/tests/Drupal/BuildTests/Composer/Template/ComposerProjectTemplatesTest.php

@dataProvider provideTemplateCreateProject

FieldDefinitionIntegrityTest::testFieldPluginDefinitionIntegrity in core/modules/field/tests/src/Kernel/FieldDefinitionIntegrityTest.php

Tests the integrity of field plugin definitions.

search.schema.yml in core/modules/search/config/schema/search.schema.yml

core/modules/search/config/schema/search.schema.yml

system.schema.yml in core/modules/system/config/schema/system.schema.yml

core/modules/system/config/schema/system.schema.yml

tour.schema.yml in core/modules/tour/config/schema/tour.schema.yml

core/modules/tour/config/schema/tour.schema.yml