QStringLiteral fails in context where a variable 's' is already defined

    if (char *s = 0)
        return QStringLiteral("Error");

main.cpp(7) : error C2373: 's' : redefinition; different type modifiers
        main.cpp(6) : see declaration of 's'
main.cpp(7) : error C3493: 's' cannot be implicitly captured because no default capture mode has been specified