title: [UIBarItem setTitle:]: unrecognized selector sent to instance
body: <p>I'm trying to give my UIToolBar a title, but when I try to add a UIBarItem with a title attribute, I get this error. My code:</p>
  
  <pre><code>UIBarItem *title = [[UIBarItem alloc] init];
  title.title = @"My Title";
  
  [toolBar setItems:@[cancel, title, ok]];
  </code></pre>
  
  <p>I've check the official docs for UIBarItem, and it does indeed have a perfectly valid "title" attribute. What am I doing wrong here?</p>