This is preparation of applying headercheck to private headers, too.
Renaming the returned value to `result` also obsoletes the need for
the ugly this-> qualification, otherwise easily misread for a compiler
hint to look up the name in a template base class (which here does not
exist).
Amends 4d579851c8.
Pick-to: 6.7 6.5 6.2
Task-number: QTBUG-126219
Change-Id: Ib683f3deec492acdd2bc61806a8b0467f18f0fe8
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
(cherry picked from commit 5cd3fec9f9a2bca8c27bdee6b185714983b5d11e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
3efd5950f3