[TIMOB-19531] iOS: Debug on second simulator with first simulator still running, does not launch the second simulator

When we try to debug a project on iOS simulator when there is an existing debug session of another iOS simulator already running, then the first simulator is killed but the second simulator does not launch Steps to Reproduce: 1. Create a project 2. Debug the project to a particular simulator (e.g. iPhone 5S v9.0) 3. Now without terminating the ongoing debug session, select to debug on a different iOS simulator. (e.g. iPhone 6S v9.0) Actual Result: After build the first simulator is killed but the second simulator does not launch. Following are shown in the console logs for second simulator:

[INFO] :   Launching iOS Simulator
[TRACE] :  [ioslib] Selected iOS Simulator: iPhone 6s
[TRACE] :  [ioslib]   UDID    = CE00CA35-8A72-400B-AF4C-BA5C1E34AFE7
[TRACE] :  [ioslib]   iOS     = 9.0
[TRACE] :  [ioslib] Autoselected Xcode: 7.0
[TRACE] :  [ioslib] Removing old log file: /Users/ssekhri/Library/Developer/CoreSimulator/Devices/CE00CA35-8A72-400B-AF4C-BA5C1E34AFE7/data/Containers/Data/Application/46CC9375-00C3-4550-937F-9531C6E4D0D2/Documents/b5428b14-fd51-435b-9888-54a5e6fae4c0.log
[TRACE] :  [ioslib] iPhone 6s Simulator is running, but not in a booted state, stopping simulator

Expected Result: The first simulator should terminate and the second simulator should launch successfully and should be able to debug using the second simulator