[issue20505] Remove resolution from selectors and granularity from asyncio

[Roundup Robot]

Roundup Robot added the comment:

New changeset 3b94a4ef244e by Victor Stinner in branch 'default':
Issue #20505: add debug info
http://hg.python.org/cpython/rev/3b94a4ef244e

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nosy: +python-dev

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