Cleaned up results of running ack NSProgress ./
in
/Applications/Xcode6-Beta3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.0.sdk/System/Library/Frameworks
/Applications/Xcode6-Beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks
iOS:
CoreData.framework/Headers/NSPersistentStoreResult.h:10:@class NSProgress;
CoreData.framework/Headers/NSPersistentStoreResult.h:33: NSProgress* _requestProgress;
CoreData.framework/Headers/NSPersistentStoreResult.h:42:@property (strong, readonly) NSProgress* progress;