[SR-614] NSThread unit tests for some reason timeout on linux non-deterministically

[phausler]

Previous ID	SR-614
Radar	None
Original Reporter	@phausler
Type	Bug
Status	Closed
Resolution	Done

Additional Detail from JIRA

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

md5: 24ea8f2eb9275760d2219834249803ed

Issue Description:

Intermittently the tests for NSThread have been causing timeouts in automated builds. To work-around the test failure the tests for NSThread were disabled; they should be re-enabled and a better solution for testing or an identification of the underlying issue should be addressed.

[spevans]

The tests for `Thread` were fixed in #1162