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This is a sub-problem of #9285, in #9285, we aim to provide cProfile and profile a context manager, this will need to add code like this:
 def __enter__(self):
 self.set_cmd('')
 sys.setprofile(self.dispatcher)
 return self
Unfortunately, when setting up profiler via `sys.setprofile`, it will immediately work on next line `return self`, which cause the assertion inside `trace_dispatch_return` claim this is a "Bad return".
Technically, `profile.Profile` can not go return upper than it's frame inside the frame stack. This behavior can be observed by this code:
 def fib(n):
 if n > 2:
 return fib(n - 1) + fib(n - 2)
 return n
 def foo():
 pr = profile.Profile()
 # Profile was set in the `foo` frame, it can't get more upper than this
 # that means, we can't return to global frame when this profile is set
 sys.setprofile(pr.dispatcher)
 fib(5)
 # We didn't stop the profile here via sys.setprofile(None)
 # So it will return 0xDEADBEAF to global frame and cause a bad return
 return 0xDEADBEAF
 foo()
Here this issue will provide the test of this behavior, then will make some modify in #9285 to prevent this situation when using profile as a context manager.