Bug 4369 F2 should work even if "Hide Text Hover" is enabled
- enable "Hide Text Hover" - position the cursor on a type - press F2 observe: nothing happens although I explicitly requested JavaDoc help.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
private BracketHighlighter fBracketHighlighter;
	
	
	/**
	 * Creates a new compilation unit editor.
	 */
	public CompilationUnitEditor() {
		super();
		setDocumentProvider(JavaPlugin.getDefault().getCompilationUnitDocumentProvider());
		setEditorContextMenuId("#CompilationUnitEditorContext"); 
		setRulerContextMenuId("#CompilationUnitRulerContext"); 
		setOutlinerContextMenuId("#CompilationUnitOutlinerContext"); 
		fSavePolicy= null;
			
		fJavaEditorErrorTickUpdater= new JavaEditorErrorTickUpdater(this);
	}
	
	/*
	 * @see AbstractTextEditor#createActions
	 */
	protected void createActions() {
		
		super.createActions();
		
		setAction("ContentAssistProposal", new TextOperationAction(JavaEditorMessages.getResourceBundle(), "ContentAssistProposal.", this, ISourceViewer.CONTENTASSIST_PROPOSALS));			 
		setAction("AddImportOnSelection", new AddImportOnSelectionAction(this));		 
		setAction("OrganizeImports", new OrganizeImportsAction(this)); 
		
		setAction("Comment", new TextOperationAction(JavaEditorMessages.getResourceBundle(), "Comment.", this, ITextOperationTarget.PREFIX)); 
		setAction("Uncomment", new TextOperationAction(JavaEditorMessages.getResourceBundle(), "Uncomment.", this, ITextOperationTarget.STRIP_PREFIX));