Issue #3267653 by danflanagan8, mglaman: Comment tests should not rely on Classy

...modules/comment/tests/src/Functional/CommentAdminTest.php

...les/comment/tests/src/Functional/CommentAnonymousTest.php

core/modules/comment/tests/src/Functional/CommentCSSTest.php

...odules/comment/tests/src/Functional/CommentFieldsTest.php

...les/comment/tests/src/Functional/CommentInterfaceTest.php

...es/comment/tests/src/Functional/CommentNodeAccessTest.php

...dules/comment/tests/src/Functional/CommentNonNodeTest.php

...modules/comment/tests/src/Functional/CommentPagerTest.php

.../modules/comment/tests/src/Functional/CommentTestBase.php

...les/comment/tests/src/Functional/CommentThreadingTest.php

...modules/comment/tests/src/Functional/CommentTitleTest.php

...s/comment/tests/src/Functional/Views/CommentAdminTest.php

...ment/tests/src/Functional/Views/CommentOperationsTest.php