Mark the enumerator QVariant::Type as obsolete.

In most cases, QMetaType::Type should be used (contains more
entries) and in APIs an int should be used to allow for
user-extended metatypes.

Change-Id: Iaa768f6d510686da36c61b8aaf5de3ac53a6f463
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/kernel/qvariant.cpp

@@ -980,6 +980,7 @@ Q_CORE_EXPORT void QVariantPrivate::unregisterHandler(const int /* Modules::Name
 */
 
 /*!
+    \obsolete Use QMetaType::Type instead
     \enum QVariant::Type
 
     This enum type defines the types of variable that a QVariant can