The QRegularExpression capture-by-name keys are currently QStringViews,
but are only ever used to compare them against a const char16_t*, so
this API is a perfect candidate for replacing all of these overload sets
with a single QAnyStringView function.
[ChangeLog][QtCore][QRegularExpression] Keys can now be passed as
QAnyStringView (was QStringView).
Fixes: QTBUG-103097
Change-Id: I1a80e85f301cc08370d70b3b5eb0ae10c6a51f33
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
737c6680b4