### Description I have an iOS app integrating react-native, after upgrade to 0.43.3, cmd+D can't open dev menu any more. I tried a empt project, i didn't work either. ### Reproduction Steps and Sample Code I have an empty repo which can reproduce this bug https://github.com/hitbear518/IntegrationBug I haven't test Android yet ### Additional Information * React Native version: 0.43.3 * Platform: iOS * Development Operating System: Mac OS 10.12.4 * Dev tools: Xcode 8.3.1, Swift 3.0