Bug 3616 No icon for method parameters in code assist list (1GD014D)
Trigger code assist in a method with parameters so that a parameter name shows in the list. Note that the parameter name has no icon. NOTES:
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPluginImages.java
*/
	public static void setLocalImageDescriptors(IAction action, String iconName) {
		setImageDescriptors(action, "lcl16", iconName); 
	}
	
	/*
	 * Helper method to access the image registry from the JavaPlugin class.
	 */
	 static ImageRegistry getImageRegistry() {
		return IMAGE_REGISTRY;
	}
	
	private static void setImageDescriptors(IAction action, String type, String relPath) {
		
		try {
			ImageDescriptor id= ImageDescriptor.createFromURL(makeIconFileURL("d" + type, relPath)); 
			if (id != null)
				action.setDisabledImageDescriptor(id);
		} catch (MalformedURLException e) {
		}
	
		try {
			ImageDescriptor id= ImageDescriptor.createFromURL(makeIconFileURL("c" + type, relPath)); 
			if (id != null)
				action.setHoverImageDescriptor(id);
		} catch (MalformedURLException e) {
		}
	
		action.setImageDescriptor(create("e" + type, relPath)); 
	}