Stack traces with async/await

It's clear why stack traces are affected with Microsoft's new programming paradigm. We now have a semantic stack and a couple of physical ones (my choice of words).

What I get to see is an exception's StackTrace property (and in the debugger) is the physical ones, concatenated:

private async Task CheckFooAndBar()
{
    var log = LogManager.GetLogger("Test");
    log.Info("CheckFooAndBar");
    try
    {
        await Foo();
    }
    catch (Exception ex)
    {
        log.Info("StackTrace of last exception: " + ex.StackTrace);
    }
    Console.ReadKey();
}
private async Task Foo()
{
    await Task.Factory.StartNew(() => Thread.Sleep(1000));
    await Bar();
    await Task.Factory.StartNew(() => Thread.Sleep(1000));
}
private async Task Bar()
{
    await Task.Factory.StartNew(() => Thread.Sleep(1000));
    throw new Exception();
    await Task.Factory.StartNew(() => Thread.Sleep(1000));
}

This gives:

StackTrace of last exception:    at NLogAsyncExceptionTestCase.Program.<Bar>d__d.MoveNext() in c:\Users\Jens\Documents\Visual Studio 2012\Projects\NLogAsyncExceptionTestCase\NLogAsyncExceptionTestCase.Console\Program.cs:line 53
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at NLogAsyncExceptionTestCase.Program.<Foo>d__8.MoveNext() in c:\Users\Jens\Documents\Visual Studio 2012\Projects\NLogAsyncExceptionTestCase\NLogAsyncExceptionTestCase.Console\Program.cs:line 44
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotifica