Bug 147530 [DataBinding] Provide event objects for change listeners
Before data binding goes 1.0 it would be wise to provide EventObjects for the following listeners to ensure that the API doesn't preclude future expansion of the values supplied to listeners. Interfaces that would be affected: * IValueChangeListener * IValueChangingListener * IListChangeListener * ISetChangeListener * IMappingChangeListener
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/jface/tests/internal/databinding/provisional/observable/AbstractObservableTest.java
RealmTester.exerciseCurrent(new Runnable() {
			public void run() {
				observable = new ObservableStub();
				observable.fireStale();
			}			
		});
	}
	
	public void testFireChangeRealmChecks() throws Exception {
		Realm.setDefault(new CurrentRealm(true));
		
		RealmTester.exerciseCurrent(new Runnable() {
			public void run() {
				observable = new ObservableStub();
				observable.fireChange();
			}
		});
	}
	
	private class ChangeListener implements IChangeListener {
		int count;
		IObservable source;
		
		public void handleChange(IObservable source) {
			count++;
			this.source = source;
		}
	}
	
	private class StaleListener implements IStaleListener {