Alex Akers 4fdeed0214 [React Native] Fix crash if current queue has no label
Summary:
If the current queue has no label, `dispatch_queue_get_label()` returns `NULL` and `@((char *)0)` will crash the app.

Closes facebook#1833
2015-07-03 02:24:30 -08:00
..
2015-05-13 13:24:36 -07:00