Bug 224571 [Decorators] Missing problem markers on IFile in Package Explorer
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/IDecoration.java
*            the prefix
	 */
	public void addPrefix(String prefix);
	/**
	 * Adds a suffix to the element's label.
	 * 
	 * @param suffix
	 *            the suffix
	 */
	public void addSuffix(String suffix);
	/**
	 * Adds an overlay to the element's image.
	 * 
	 * @param overlay
	 *            the overlay image descriptor
	 */
	public void addOverlay(ImageDescriptor overlay);
	/**
	 * Adds an overlay to the element's image.
	 * 
	 * @param overlay
	 *            the overlay image descriptor
	 * @param quadrant
	 *            The constant for the quadrant to draw the image on.
	 */
	public void addOverlay(ImageDescriptor overlay, int quadrant);
	
	/**
	 * Set the foreground color for this decoration.
	 * @param color the color to be set for the foreground