Discussion on question by Faraday: Отследить выполнение асинхронного метода

Imported from a comment discussion on https://ru.stackoverflow.com/questions/1605688/%d0%9e%d1%82%d1%81%d0%bb%d0%b5%d0%b4%d0%b8%d1%82%d1%8c-%d0%b2%d1%8b%d0%bf%d0%be%d0%bb%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5-%d0%b0%d1%81%d0%b8%d0%bd%d1%85%d1%80%d0%be%d0%bd%d0%bd%d0%be%d0%b3%d0%be-%d0%bc%d0%b5%d1%82%d0%be%d0%b4%d0%b0