Summary:
Works the same way as `react-native run-android`, but targets iOS simulator instead. Under the hood, it uses `xcodebuild` to compile the app and store it in `ios/build` folder, then triggers `instruments` and `simctl` to install and launch the app on simulator.
Since Facebook relies on BUCK to build and run iOS app, we probably won't use `run-ios` internally. That's why I'm putting this as public PR instead of internal diff.
To test this, I hacked global `react-native` script to install react native from my local checkout instead of from npm, cd into the folder and ran `react-native run-ios`.
Closes https://github.com/facebook/react-native/pull/5119
Reviewed By: svcscm
Differential Revision: D2805199
Pulled By: frantic
fb-gh-sync-id: 423a45ba885cb5e48a16ac22095d757d8cca7e37