title: Unable to remove "Optional" from String
body: <p>Below is my snippet</p>
  
  <pre><code>// MARK: - Location Functions
      func getCurrentLocation() -&gt; (String!, String!) {
          let location = LocationManager.sharedInstance.currentLocation?.coordinate
          return (String(location?.latitude), String(location?.longitude))
      }
  
      func setCurrentLocation() {
          let (latitude, longitude) = getCurrentLocation()
          let location = "\(latitude!),\(longitude!)"
          print(location)
      }
  </code></pre>
  
  <p>Though I unwrap optional using <code>latitude!</code> and <code>longitude!</code>, it prints me <code>Optional(37.33233141),Optional(-122.0312186)</code></p>
  
  <p>I am breaking my head to remove the Optional binding. </p>