Bug 265878 [DataBinding] Compile errors ("never used locally") in tests and examples
using I20090217-2200.
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/jface/tests/databinding/viewers/ObservableValueEditingSupportTest.java
int disposed;
		IObservableValue delegate;
		ObservableValueDecorator(IObservableValue delegate) {
			this.delegate = delegate;
		}
		public boolean isDisposed() {
			return disposed > 0;
		}
		public synchronized void dispose() {
			disposed++;
			delegate.dispose();
		}
		public void addChangeListener(IChangeListener listener) {
			delegate.addChangeListener(listener);
		}
		public void addDisposeListener(IDisposeListener listener) {
			delegate.addDisposeListener(listener);
		}
		public void addStaleListener(IStaleListener listener) {
			delegate.addStaleListener(listener);
		}
		public void addValueChangeListener(IValueChangeListener listener) {
			delegate.addValueChangeListener(listener);
		}