Issue #2358657 by zaporylie, geerlingguy: Fixed Wrong @covers definitions in Drupal project.

...s/src/Unit/ResponsiveImageMappingConfigEntityUnitTest.php

core/modules/user/tests/src/Unit/PermissionHandlerTest.php

core/tests/Drupal/Tests/Core/Cache/CacheTest.php

core/tests/Drupal/Tests/Core/DrupalTest.php

...sts/Core/Entity/Sql/SqlContentEntityStorageSchemaTest.php

core/tests/Drupal/Tests/Core/Plugin/ContextHandlerTest.php

...sts/Drupal/Tests/Core/Plugin/DefaultPluginManagerTest.php

...tests/Drupal/Tests/Core/Routing/AccessAwareRouterTest.php