Bug 189490 [CommonNavigator] Go To->Resource won't enable
I0524 1. Open the Project Explorer in the Resource perspective 2. Create a vanilla project P 3. Create a folder F 4. Create a file resource R Open the Navigate->Go To file. "Resource..." will remain disabled.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonNavigator.java
}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.ISaveablesSource#getActiveSaveables()
	 */
	public Saveable[] getActiveSaveables() {
		return getNavigatorContentService().getSaveablesService().getActiveSaveables();
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.ISaveablePart#doSave(org.eclipse.core.runtime.IProgressMonitor)
	 */
	public void doSave(IProgressMonitor monitor) {
		
		
		
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.ISaveablePart#doSaveAs()
	 */
	public void doSaveAs() {
		
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.ISaveablePart#isDirty()
	 */
	public boolean isDirty() {
		Saveable[] saveables = getSaveables();
		for (int i = 0; i < saveables.length; i++) {
			if(saveables[i].isDirty()) {
				return true;
			}