anchor.diff:  import 'ios_workflow.dart';
   import 'xcodeproj.dart';
   
  -const int kXcodeRequiredVersionMajor = 7;
  +const int kXcodeRequiredVersionMajor = 8;
   const int kXcodeRequiredVersionMinor = 0;
   
   // The Python `six` module is a dependency for Xcode builds, and installed by
  
positive.code: }
  
  final RegExp _xcodeVersionRegExp = new RegExp(r'Xcode (\d+)\..*');
  final String _xcodeRequirement = 'Xcode 7.0 or greater is required to develop for iOS.';
  
  bool _checkXcodeVersion() {
    if (!platform.isMacOS)
  
negative.code:   }
    if (result.xcodeBuildExecution != null &&
        result.xcodeBuildExecution.buildForPhysicalDevice &&
        // Make sure the user has specified one of:
        // DEVELOPMENT_TEAM (automatic signing)
        // PROVISIONING_PROFILE (manual signing)
        !(app.buildSettings?.containsKey('DEVELOPMENT_TEAM')) == true || app.buildSettings?.containsKey('PROVISIONING_PROFILE') == true) {
      printError(noDevelopmentTeamInstruction, emphasis: true);
      return;
  