[issue26564] Malloc debug hooks: display memory block traceback on error

[Roundup Robot]

Roundup Robot added the comment:

New changeset 18a19e62bac5 by Victor Stinner in branch 'default':
Enhance and rewrite traceback dump C functions
https://hg.python.org/cpython/rev/18a19e62bac5

New changeset fea3c6e9a38e by Victor Stinner in branch '3.5':
_tracemalloc: store lineno as unsigned int
https://hg.python.org/cpython/rev/fea3c6e9a38e

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nosy: +python-dev

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