The type is specific about printing, so give it a name in line with
QPageLayout and QPageSize.
As per API review comment, it's not clear why this type should not be a
regular, copyable and movable value type. It stores a list of intervals.
Give it value-type semantics, as an implicitly shared class.
Convert the parse method into a static factory function.
Add a Range type and use it instead of the semantic-free QPair.
Move QPrinter getter into QPagedPainteDevice, make it return a copy
rather than a pointer, and add a setter.
Extend test case to cover all members and more merge cases. Fix bugs
found that way.
Fixes: QTBUG-88113
Change-Id: If17ea4d410d49f16b097e88b7979db5d72add820
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
