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
* @see org.eclipse.ui.IWorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
	 */
	public void createPartControl(Composite parent) {
		super.createPartControl(parent);
		
		Preferences preferences= JavaCore.getPlugin().getPluginPreferences();
		preferences.addPropertyChangeListener(fPropertyChangeListener);			
		
		IInformationControlCreator informationControlCreator= new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell shell) {
				boolean cutDown= false;
				int style= cutDown ? SWT.NONE : (SWT.V_SCROLL | SWT.H_SCROLL);
				return new DefaultInformationControl(shell, SWT.RESIZE, style, new HTMLTextPresenter(cutDown));
			}
		};
		fInformationPresenter= new InformationPresenter(informationControlCreator);
		fInformationPresenter.setSizeConstraints(60, 10, true, true);		
		fInformationPresenter.install(getSourceViewer());
		
		fEditorSelectionChangedListener= new EditorSelectionChangedListener();
		fEditorSelectionChangedListener.install(getSelectionProvider());
		
		if (isBrowserLikeLinks())
			enableBrowserLikeLinks();
		if (PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_DISABLE_OVERWRITE_MODE))
			configureInsertMode(OVERWRITE, false);
		if (fMarkOccurrenceAnnotations)
			installOccurrencesFinder();
		getEditorSite().getShell().addShellListener(fActivationListener);
	}