Adjust StepHarnessBase so that the newly fixed roundtrips get tested.

Author: nedtwigg

testlib/src/main/java/com/diffplug/spotless/StepHarnessBase.java

@@ -17,6 +17,7 @@
 
 import java.util.Locale;
 import java.util.Objects;
+import java.util.Set;
 
 import org.assertj.core.api.Assertions;
 
@@ -48,6 +49,10 @@ protected StepHarnessBase(Formatter formatter) {
 				supportsRoundTrip = true;
 			} else if (onlyStepName.equals("fence")) {
 				supportsRoundTrip = true;
+			} else if (Set.of("ktlint", "ktfmt", "scalafmt", "palantir-java-format", "google-java-format",
+					"removeUnusedImports", "cleanthat", "No line break between type annotation and type",
+					"importOrder", "Remove unnecessary semicolons").contains(onlyStepName)) {
+				supportsRoundTrip = true;
 			}
 		}
 	}