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
bundles/org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/list/ObservableList.java
IObservableList {
	protected List wrappedList;
	/**
	 * Stale state of the list.  Access must occur in the current realm.
	 */
	private boolean stale = false;
	/**
	 * Points to an instance of IListChangeListener or a Collection of
	 * IListChangeListeners.  Access must be synchronized.
	 */
	private Object listChangeListeners;
	private Object elementType;
	protected ObservableList(List wrappedList, Object elementType) {
		this(Realm.getDefault(), wrappedList, elementType);
	}
	protected ObservableList(Realm realm, List wrappedList, Object elementType) {
		super(realm);
		this.wrappedList = wrappedList;