Issue #2642236 by TR: Various setUp() and tearDown() methods are not protected (the sequel)

core/modules/comment/src/Tests/CommentInterfaceTest.php

...sts/CacheabilityMetadataConfigOverrideIntegrationTest.php

...nfig/src/Tests/CacheabilityMetadataConfigOverrideTest.php

.../modules/config/src/Tests/ConfigEntityStaticCacheTest.php

...modules/datetime/src/Tests/Views/ArgumentDateTimeTest.php

...ules/datetime/src/Tests/Views/DateTimeHandlerTestBase.php

core/modules/datetime/src/Tests/Views/FilterDateTest.php

core/modules/datetime/src/Tests/Views/FilterDateTimeTest.php

core/modules/datetime/src/Tests/Views/SortDateTimeTest.php

...Entity/Update/SqlContentEntityStorageSchemaColumnTest.php

...s/field/src/Tests/EntityReference/Views/SelectionTest.php

...modules/field/src/Tests/FieldDefaultValueCallbackTest.php

.../Unit/Plugin/migrate/process/d6/FieldTypeDefaultsTest.php

core/modules/file/src/Tests/Migrate/EntityFileTest.php

...ts/src/Unit/Breadcrumb/ForumBreadcrumbBuilderBaseTest.php

...src/Unit/Breadcrumb/ForumListingBreadcrumbBuilderTest.php

...ts/src/Unit/Breadcrumb/ForumNodeBreadcrumbBuilderTest.php

...ules/image/src/Tests/Migrate/d6/MigrateImageCacheTest.php

core/modules/image/tests/src/Unit/ImageStyleTest.php

.../src/Unit/PageCache/DenyPrivateImageStyleDownloadTest.php