Previously when checking the initial timing we did a lot of checks
after accessing and copying timing.duration and before we check
that timing.duration is roughly the same as performance.now(),
which can lead to flakes if the overhead of the checking is
big enough. Update the test to check timing.duration against
performance.now() as soon as possible when it's copied instead
of computed.
:#
PR-URL: https://github.com/nodejs/node/pull/49892
Refs: https://github.com/nodejs/reliability/issues/676
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Richard Lau <rlau@redhat.com>
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