perf: use `setup` function in `perfdirstatedirs`
The command seems to pre-date the introduction of the `setup` support in timer.
We move the line that is obviously about benchmark setup in such `setup`
function.
# Copyright 2016-present Facebook. All Rights Reserved.
#
# error: errors used in fastannotate
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
class CorruptedFileError(Exception):
pass
class CannotReuseError(Exception):
"""cannot reuse or update the cache incrementally"""