QChar: mark as PRIMITIVE type

I guess the reason it was marked RELOCATABLE was to ensure
initialization, which we now do anyways (even for PRIMITIVE).

Change-Id: If4f2c248b7b04a301bad81588ea9a9ad06534760
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

src/corelib/text/qchar.h

@@ -639,7 +639,7 @@ private:
     char16_t ucs;
 };
 
-Q_DECLARE_TYPEINFO(QChar, Q_RELOCATABLE_TYPE);
+Q_DECLARE_TYPEINFO(QChar, Q_PRIMITIVE_TYPE);
 
 #ifndef QT_NO_DATASTREAM
 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, QChar);