Bug 239518 [Contributions] Fix up TextActionHandler's handling of Delete to use Text.insert
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/TextActionHandler.java
private IAction actionHandler;
        protected PropertyChangeListener(IAction actionHandler) {
            super();
            this.actionHandler = actionHandler;
        }
        public void propertyChange(PropertyChangeEvent event) {
            if (activeTextControl != null) {
				return;
			}
            if (event.getProperty().equals(IAction.ENABLED)) {
                Boolean bool = (Boolean) event.getNewValue();
                actionHandler.setEnabled(bool.booleanValue());
            }
        }
    }
    private class DeleteActionHandler extends Action {