Bug 246105 [Dialogs] Title and description not layed out properly when title image is null
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
* Returns the title image label.
	 * 
	 * @return the title image label
	 */
	protected Label getTitleImageLabel() {
		return titleImageLabel;
	}
	/**
	 * Display the given error message. The currently displayed message is saved
	 * and will be redisplayed when the error message is set to
	 * <code>null</code>.
	 * 
	 * @param newErrorMessage
	 *            the newErrorMessage to display or <code>null</code>
	 */
	public void setErrorMessage(String newErrorMessage) {
		
		if (errorMessage == null ? newErrorMessage == null : errorMessage
				.equals(newErrorMessage))
			return;
		errorMessage = newErrorMessage;
		
		if (errorMessage == null) {
			if (showingError) {
				
				showingError = false;
			}