[SR-2590] Operation Queues not using libdispatch may not work in portable Foundation

[johnno1962]

Previous ID	SR-2590
Radar	None
Original Reporter	@johnno1962
Type	Bug
Status	Resolved
Resolution	Won't Do

Additional Detail from JIRA

Votes	0
Component/s	Foundation
Labels	Bug
Assignee	None
Priority	Medium

md5: ac41490339143ceeda5fce695bda232d

Issue Description:

During the port of Foundation to Android it was found that delegation of completion from a NSURLSession through an Operation Queue was not working. The solution was to make sure -DDEPLOYMENT_ENABLE_LIBDISPATCH was defined during the build but it is possible the non-dispatch code path does not work. Discussion:

#622