Acknowledge resolution of Bug 310874 -  [hierarchy] should support region based type hierarchies for OT/J
This is due to the changes in Bug 321411 -  [hierarchy] Replace OTTypeHierarchy with adapting the original TypeHierarchy
-> no more tests need disabling.
diff --git a/testplugins/org.eclipse.jdt.ui.tests.refactoring/test cases/org/eclipse/jdt/ui/tests/refactoring/IntroduceIndirectionTests.java b/testplugins/org.eclipse.jdt.ui.tests.refactoring/test cases/org/eclipse/jdt/ui/tests/refactoring/IntroduceIndirectionTests.java
index 1e11745..425c1ba 100644
--- a/testplugins/org.eclipse.jdt.ui.tests.refactoring/test cases/org/eclipse/jdt/ui/tests/refactoring/IntroduceIndirectionTests.java
+++ b/testplugins/org.eclipse.jdt.ui.tests.refactoring/test cases/org/eclipse/jdt/ui/tests/refactoring/IntroduceIndirectionTests.java
@@ -256,9 +256,7 @@
 		helperWarn(new String[] { "p.Foo" }, "bar", "p.Foo", 11, 25, 11, 28);
 	}
 
-//{ObjectTeams: disabled, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=310874
-	public void _test24() throws Exception {
-// SH}
+	public void test24() throws Exception {
 		// assure common super type is used even if the hierarchy branches downwards
 		helperPass(new String[] { "p.Foo" }, "bar", "p.Foo", 11, 11, 11, 14);
 	}