Pre-requisite for a fix for qHash. The Qt50String inherits from QString
and becomes ambiguous once it no longer goes through a catch-all
template function because qHash(QString, size_t) has a better match for
the second argument.
Change-Id: I23c7afb1b3aa167d40dc4838e82b7763de015f6b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 7fea2d34fb3e9d13deb584595d119c870389b912)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
ea730ed599