[issue42246] Implement PEP 626 -- Precise line numbers for debugging

[Neil Schemenauer]

Change by Neil Schemenauer <nas-python at arctrix.com>:


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pull_requests: +23492
pull_request: https://github.com/python/cpython/pull/24714

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42246>
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