Bug 52801 "Press F2 for focus" does not work for spell-checking hovers
"Press F2 for focus" does not work for spell-checking hovers.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
private final TextOperationAction fTextOperationAction;
		
		/**
		 * Creates a dispatch action.
		 */
		public InformationDispatchAction(ResourceBundle resourceBundle, String prefix, final TextOperationAction textOperationAction) {
			super(resourceBundle, prefix, JavaEditor.this);
			if (textOperationAction == null)
				throw new IllegalArgumentException();
			fTextOperationAction= textOperationAction;
		}
		
		/*
		 * @see org.eclipse.jface.action.IAction#run()
		 */
		public void run() {
			/**
			 * Information provider used to present the information.
			 * 
			 * @since 3.0
			 */
			class InformationProvider implements IInformationProvider, IInformationProviderExtension2 {