Migrate iOSContainerUtility

Summary: TSC actually found a type error here in `safeExec` which is nice.

Reviewed By: danielbuechele

Differential Revision: D16666740

fbshipit-source-id: 28a1ad12190d2351a48323f23c3a69947503625d

src/fb-stubs/ErrorReporter.tsx

@@ -16,8 +16,8 @@ import {ScribeLogger} from './ScribeLogger';
 export type ObjectError =
   | Error
   | {
-      message: string,
-      stack?: string,
+      message: string;
+      stack?: string;
     };
 
 export default class ErrorReporter {

src/fb-stubs/iOSContainerUtility.tsx

@@ -5,15 +5,15 @@
  * @format
  */
 import {promisify} from 'util';
-import type {DeviceType} from '../devices/BaseDevice';
+import {DeviceType} from '../devices/BaseDevice';
 const exec = promisify(require('child_process').exec);
 
 const errorMessage = 'Physical iOS devices not yet supported';
 
 export type DeviceTarget = {
-  udid: string,
-  type: DeviceType,
-  name: string,
+  udid: string;
+  type: DeviceType;
+  name: string;
 };
 
 function isAvailable(): boolean {