Bug 124529 [EFS] Need file system support in linked resources
We need to add the same sort of support that we have for EFS in the project locations in linked resource creation
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/CreateLinkedResourceGroup.java
private Listener listener;
    private String linkTarget = ""; 
    private int type;
    private boolean createLink = false;
    
    private FontMetrics fontMetrics;
    
    private Composite groupComposite;
    private Text linkTargetField;
    private Button browseButton;
    private Button variablesButton;
    private Label resolvedPathLabelText;
    private Label resolvedPathLabelData;
	private final IStringValue updatableResourceName;
    
    /**
     * Helper interface intended for updating a string value based on the
     * currently selected link target.
     * @since 3.2
     */
    public static interface IStringValue {
    	/**
    	 * Sets the String value.
    	 * @param string a non-null String
    	 */
    	void setValue(String string);
    	/**
    	 * Gets the String value.
    	 * @return the current value, or <code>null</code>
    	 */