title: How to add documentation to enum associated values in Swift
body: <p>Is there a way to add descriptions to associated values of enums in Swift 3? I want them to show up in the symbol documentation popup (option+click), like they do for function parameters in Xcode 8.</p>
  
  <p>This is my enum:</p>
  
  <pre><code>enum Result {
      /**
      Request succeeded.
  
      - Parameters:
        - something: Some description.
        - otherThing: Other description.
      */
      case Success(something: Int, otherThing: Int)
  
      /**
      Request failed.
  
      - Parameter error: Error.
      */
      case Error(error: Error)
  }
  </code></pre>
  
  <p>I tried using <code>- Parameters:</code>, but it doesn't work in enums.</p>