Bug 156864 [Undo] Edit > Add Bookmark... does not work
I20060906-1200 1. start fresh workspace 2. create simple project P 3. create simple file f 4. close the editor (the editor actions works) 5. Edit > Add Bookmark... ==> bookmark is not added
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogMarkerProperties.java
*/
	private Text folderText;
	/**
	 * The text control for the Location field.
	 */
	private Text locationText;
	/**
	 * Dirty flag. True if any changes have been made.
	 */
	private boolean dirty;
	private String title;
	
	/**
	 * The name used to describe the specific kind of marker.  Used when
	 * creating an undo command for the dialog, so that a specific name such
	 * as "Undo Create Task" or "Undo Modify Bookmark" can be used.
	 */
	private String markerName;
	/**
	 * Creates the dialog. By default this dialog creates a new marker. To set
	 * the resource and initial attributes for the new marker, use
	 * <code>setResource</code> and <code>setInitialAttributes</code>. To
	 * show or modify an existing marker, use <code>setMarker</code>.
	 * 
	 * @param parentShell
	 *            the parent shell
	 */
	public DialogMarkerProperties(Shell parentShell) {
		super(parentShell);
        setShellStyle(getShellStyle() | SWT.RESIZE);