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
public void selectionChanged(SelectionChangedEvent event) {
			doSelectionChanged(event);
		}
	}
	
	/*
	 * Link mode.  
	 */
	class MouseClickListener implements KeyListener, MouseListener, MouseMoveListener,
		FocusListener, PaintListener, IPropertyChangeListener, IDocumentListener, ITextInputListener, ITextPresentationListener {
		
		private boolean fActive;
		
		private IRegion fActiveRegion;
		
		private Position fRememberedPosition;
		
		private Cursor fCursor;
		
		
		private Color fColor;
		
		private int fKeyModifierMask;
		
		public void deactivate() {