The containers are created locally in the top level test functions, they
can't be made const due to the way they are filled, however the loop
body don't change them; even if the code in a loop would cause
re-entrance du due to signal emittance or events processing, those
containers aren't affected and aren't changed during iteration because
the top-level test functions themselves aren't re-entered, hence
use std::as_const.
Drive-by change: take QHostAddress by const& when it's used as a
for-loop variable (it has a QExplicitlySharedDataPointer d-pointer).
Task-number: QTBUG-115839
Change-Id: I443169e10d973aba2f62854aba200fc2dc2c80aa
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
bca2805b34