Issue #2546416 by borisson_, lauriii: Rename ViewUnitTestBase to ViewKernelTestBase

core/modules/aggregator/src/Tests/Views/IntegrationTest.php

core/modules/comment/src/Tests/Views/CommentUserNameTest.php

core/modules/dblog/src/Tests/Views/ViewsIntegrationTest.php

...rence/src/Tests/Views/EntityReferenceRelationshipTest.php

.../modules/file/src/Tests/Views/ExtensionViewsFieldTest.php

core/modules/file/src/Tests/Views/FileViewsDataTest.php

core/modules/image/src/Tests/Views/ImageViewsDataTest.php

core/modules/language/src/Tests/Views/LanguageTestBase.php

core/modules/options/src/Tests/Views/OptionsTestBase.php

...dules/user/src/Tests/Views/HandlerFieldPermissionTest.php

...ules/user/src/Tests/Views/HandlerFilterPermissionTest.php

core/modules/user/src/Tests/Views/HandlerFilterRolesTest.php

core/modules/user/src/Tests/Views/UserKernelTestBase.php

core/modules/views/src/Tests/BasicTest.php

...modules/views/src/Tests/Entity/RowEntityRenderersTest.php

...les/views/src/Tests/Entity/ViewEntityDependenciesTest.php

...Subscriber/ViewsEntitySchemaSubscriberIntegrationTest.php

core/modules/views/src/Tests/Handler/AreaEntityTest.php

core/modules/views/src/Tests/Handler/AreaTextTest.php

core/modules/views/src/Tests/Handler/AreaTitleTest.php