Open Radar

 
Summary:
Trying to compile the following code, aborts the compiler:

enum APIResult<T : AnyObject> {
    case UnknownError(NSError?)
    case NetworkError
    case Value(T)
}

class APIObject {
    
}

func thisBreaksCompilation(res : APIResult<APIObject>) {
    
    switch (res) {
    case .NetworkError:
        println("Net Error")
    case .UnknownError(let err):
        println("Other error")
    case .Value(let val):
        println("Value!")
    }
    
}

Aborts the compiler with errors or warnings on those lines.

Steps to Reproduce:
Paste the code into a swift file and compile

Expected Results:
Successful compilation

Actual Results:
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1

Version:
XCode 6.1 (6A1052d)
OS X 10.9.5 (13F34)

Notes:
The following code, however, does compile:

enum APIResult<T : AnyObject> {
    case UnknownError(NSError?)
    case NetworkError
    case Value(T)
}

class APIObject {
    
}

func thisBreaksCompilation<T>(res : APIResult<T>) {
    
    switch (res) {
    case .NetworkError:
        println("Net Error")
    case .UnknownError(let err):
        println("Other error")
    case .Value(let val):
        println("Value!")
    }
    
}