Issue #2262195 by sun: Various test classes are missing phpDoc.

...odules/ban/lib/Drupal/ban/Tests/IpAddressBlockingTest.php

...block/lib/Drupal/block/Tests/NonDefaultBlockAdminTest.php

.../Drupal/comment/Tests/Views/DefaultViewRecentComments.php

...es/config/lib/Drupal/config/Tests/ConfigImportAllTest.php

core/modules/field/lib/Drupal/field/Tests/CrudTest.php

core/modules/field/lib/Drupal/field/Tests/DisplayApiTest.php

core/modules/field/lib/Drupal/field/Tests/FieldInfoTest.php

...es/field/lib/Drupal/field/Tests/FieldInstanceCrudTest.php

core/modules/field/lib/Drupal/field/Tests/FormTest.php

core/modules/field/lib/Drupal/field/Tests/NestedFormTest.php

...pal/migrate_drupal/Tests/d6/MigrateAggregatorFeedTest.php

.../Drupal/migrate_drupal/Tests/d6/MigrateSystemFileTest.php

...upal/migrate_drupal/Tests/d6/MigrateSystemImageGdTest.php

...Drupal/migrate_drupal/Tests/d6/MigrateSystemImageTest.php

.../migrate_drupal/Tests/d6/MigrateSystemMaintenanceTest.php

.../migrate_drupal/Tests/d6/MigrateSystemPerformanceTest.php

...b/Drupal/migrate_drupal/Tests/d6/MigrateSystemRssTest.php

.../Drupal/migrate_drupal/Tests/d6/MigrateSystemSiteTest.php

...Drupal/migrate_drupal/Tests/d6/MigrateSystemThemeTest.php

.../node/lib/Drupal/node/Tests/Views/NodeIntegrationTest.php