Open Radar

 
The following Swift 2.2 code compiles under Swift 3, but will not link if Objective-C code attempts to reference it from another module:

import Foundation
public final class RNCryptor: NSObject {
    @objc(RNEncryptor) public final class Encryptor: NSObject {}
}

...

    [RNEncryptor new];

This compiles, but fails to link, generating the error:

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_RNEncryptor", referenced from:
      objc-class-ref in ObjCTests.o

Note that this symbol is missing, but the metaclass is available:

$ nm TestImport | grep RNEncryptor
00000000000022d0 D _OBJC_METACLASS_$_RNEncryptor

When built using Xcode 7.3, both are included:

$ nm TestImport | grep RNEncryptor
00000000000022c0 S _OBJC_CLASS_$_RNEncryptor
0000000000002348 D _OBJC_METACLASS_$_RNEncryptor

Steps to Reproduce:
Create Swift module that exposes nested class to ObjC.
Create test case in ObjC that references that symbol
Link


Expected Results:
Should build, link, and execute.

Actual Results:
Returns undefined symbols

Version:
Version 8.0 beta (8S128d)
OS X 10.11.5 (15F34)