title: Swift Extra argument "width" in call in CGRect
body: <p>I am trying to add a few buttons in the code
  and i get an error "Extra argument "width" in call"</p>
  
  <pre><code>        let yPos = txt.frame.origin.y + txt.frame.height
  
  
      for i in 0..&lt;count {
          let yt : Int = i*40 + yPos
          //let b = UIButton(frame: CGRect(x: xPos, y: 40, width: 100, height: 30))
          var b = UIButton(frame: CGRect(x: xPos, y: yt, width: 100, height: 30))
          b.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "test:"))
          b.backgroundColor = UIColor.blackColor()
          b.tag = i
          self.addSubview(b)
      }
  </code></pre>
  
  <p>I cant figure out what is the problem.
  I tried to cast all the argument to Int but i get the same error.
  Any suggestions?  </p>