QColor: mark as movable (except for QList)

Unbelievable that this has survived for so long...

Change-Id: Icff6ecc56de773fa6054d5b96e421299a48bdbde
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

src/gui/painting/qcolor.h

@@ -264,6 +264,7 @@ private:
     friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QColor &);
 #endif
 };
+Q_DECLARE_TYPEINFO(QColor, QT_VERSION >= QT_VERSION_CHECK(6,0,0) ? Q_MOVABLE_TYPE : Q_RELOCATABLE_TYPE);
 
 inline QColor::QColor() Q_DECL_NOTHROW
 { invalidate(); }