Bug 66426 No tooltip for Junit view when docked as Fastview [JUnit]
Using RC1, the tooltip appears as the empty string for the JUnit launch view.
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/ui/TestRunnerViewPart.java
/**
	 * The currently active run tab
	 */
	private TestRunTab fActiveRunTab;
	/**
	 * Is the UI disposed
	 */
	private boolean fIsDisposed= false;
	/**
	 * The launched project
	 */
	private IJavaProject fTestProject;
	/**
	 * The launcher that has started the test
	 */
	private String fLaunchMode;
	private ILaunch fLastLaunch;
	
	/**
	 * Actions
	 */
	private Action fRerunLastTestAction;
	private ScrollLockAction fScrollLockAction;
	private ToggleOrientationAction[] fToggleOrientationActions;
	
	/**
	 * The client side of the remote test runner
	 */
	private RemoteTestRunnerClient fTestRunnerClient;
	final Image fStackViewIcon= TestRunnerViewPart.createImage("eview16/stackframe.gif");