[Logger migration] Fixed the throwable dispatch_sync method to prevent infinite recursion
[Logger migration] Fixed the throwable dispatch_sync method to prevent infinite recursion

ibm-bluemix-mobile-services/bms-clientsdk-swift-core,ibm-bluemix-mobile-services/bms-clientsdk-swift-core,ibm-bluemix-mobile-services/bms-clientsdk-swift-core