add a plain junit5 test to show junit5 tests are now possible

Author: carstenartur

org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/AutomatedSuite.java

@@ -24,6 +24,8 @@
 
 import org.eclipse.jdt.core.JavaCore;
 
+import org.eclipse.jdt.internal.common.VisitorTest;
+
 import org.eclipse.jdt.ui.tests.browsing.PackagesViewContentProviderTests;
 import org.eclipse.jdt.ui.tests.browsing.PackagesViewContentProviderTests2;
 import org.eclipse.jdt.ui.tests.browsing.PackagesViewDeltaTests;
@@ -53,6 +55,7 @@
  */
 @Suite
 @SelectClasses({
+	VisitorTest.class,
 	CoreTests.class,
 	CoreTestSuite.class,
 	QuickFixTestSuite.class,