This make non-await list comprehension coroutine-code-objects as well: 

https://bugs.python.org/issue41218

    import ast
    import inspect
    cell = '[x for x in l]'
    code = compile(cell, "<>", "exec", flags=getattr(ast,'PyCF_ALLOW_TOP_LEVEL_AWAIT', 0x0))

    inspect.CO_COROUTINE & code.co_flags == inspect.CO_COROUTINE  # this is now TRUE. 

This leads to weird things in Jupyter/IPython when we try to detect wether a block of code is, or os not async.