 
 extension NSOrderedSet {
   // - (instancetype)initWithObjects:(id)firstObj, ...
-  public
-  convenience init(objects elements: AnyObject...) {
+  public convenience init(objects elements: AnyObject...) {
     self.init(array: elements)
   }
 }
 
 extension NSSet {
   // - (instancetype)initWithObjects:(id)firstObj, ...
-  public
-  convenience init(objects elements: AnyObject...) {
+  public convenience init(objects elements: AnyObject...) {
     self.init(array: elements)
   }
 }

/// deferred.
@_semantics("convertFromObjectiveC")
public func _convertNSDictionaryToDictionary<
    Key : Hashable, Value>(d: NSDictionary?)
    -> [Key : Value] {
  // Note: there should be *a good justification* for doing something else
  // than just dispatching to `_forceBridgeFromObjectiveC`.
  if _slowPath(d == nil) { return [:] }

}

extension NSMutableString {
  public func appendFormat(format: NSString, _ args: CVarArgType...) {
    return withVaList(args) {
      self.appendString(NSString(format: format as String, arguments: $0) as String)
    }
