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
private final int fActionOrientation;
		
		public ToggleOrientationAction(TestRunnerViewPart v, int orientation) {
			super("", AS_RADIO_BUTTON); 
			if (orientation == TestRunnerViewPart.VIEW_ORIENTATION_HORIZONTAL) {
				setText(JUnitMessages.getString("TestRunnerViewPart.toggle.horizontal.label")); 
				setImageDescriptor(JUnitPlugin.getImageDescriptor("elcl16/th_horizontal.gif")); 				
			} else if (orientation == TestRunnerViewPart.VIEW_ORIENTATION_VERTICAL) {
				setText(JUnitMessages.getString("TestRunnerViewPart.toggle.vertical.label")); 
				setImageDescriptor(JUnitPlugin.getImageDescriptor("elcl16/th_vertical.gif")); 				
			} else if (orientation == TestRunnerViewPart.VIEW_ORIENTATION_AUTOMATIC) {
				setText(JUnitMessages.getString("TestRunnerViewPart.toggle.automatic.label"));  
				setImageDescriptor(JUnitPlugin.getImageDescriptor("elcl16/th_automatic.gif")); 				
			}
			fActionOrientation= orientation;
			WorkbenchHelp.setHelp(this, IJUnitHelpContextIds.RESULTS_VIEW_TOGGLE_ORIENTATION_ACTION);
		}
		
		public int getOrientation() {
			return fActionOrientation;
		}
		
		public void run() {
			if (isChecked()) {
				fOrientation= fActionOrientation;