runBlocking doesnt block Main thread on iOS

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We used to use our custom implementation to run some important cleaning procedure on applicationWillTerminate event on iOS. The procedure requires suspend func invocation, so we use custom runblocking that uses NSRunLoop.mainRunLoop inside. I noticed that coroutines in latest versions provides own impl of runBlocking for Native. The test reveals that it doesnt block the thread (MainThread) in applicationWillTerminate.