QWinRegistryKey: refactor

Refactor QWinRegistryKey to make it more modern and more
usable from outside.

Adjust the test for QWinRegistryKey to test the new functions,
merged with the original test.

Will port raw registry accessing code in QtBase to use this
class in follow-up commits. This change is the first step.

The long term goal is to port QSettings registry code to
this class instead of using raw Win32 APIs, however, there's
much more registry code in QSettings and migrate them to this
class needs a large refactor, so jsut leave it for now. Will
fix it in some future commit.

Change-Id: Iada2adb41b4d58e1b658ff6870a4b31ace479d43
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

0 files changed, 0 insertions, 0 deletions