Summary:
Right now, `run-ios` will "boot" Simulator in the headless mode in the background, as long as the Simulator.app is not running. It is exactly what "detox" does - it executes your test suite in the background.
It seems to me that the author of this change was testing it with `Simulator.app` open.
In order to fix this behavior, we have to make sure it runs before we attempt booting.
This passed through the release process since we don't use `run-ios` there (it recommends turning on XCode and testing manually which is what I have done recently too).
Differential Revision: D7535693
Pulled By: hramos
fbshipit-source-id: 881db7740ace805ecefb98bfdb660e32aafd4664
9736ddc061