Bug 237163 [DataBinding] UnmodifiableObservableValue should delegate the isStale() method to its wrapped value.
Build ID: Build id: I20080516-1333 Steps To Reproduce: 1. Create an IObservableValue which is stale 2. Wrap the IObservableValue into an UnmodifiableObservableValue 3. UnmodifiableObservableValue#isStale() returns false
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/core/tests/internal/databinding/observable/UnmodifiableObservableValueTest.java
public static Test suite() {
		TestSuite suite = new TestSuite(UnmodifiableObservableValueTest.class.getName());
		suite.addTest(ObservableValueContractTest.suite(new Delegate()));
		return suite;
	}
	private static class Delegate extends