[perl #45951] [TODO] Should PMC_int_val be decremented within mmd_cvt_to_types()?

[via RT]

# New Ticket Created by  Paul Cochrane 
# Please include the string:  [perl #45951]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=45951 >


In src/mmd.c there is the very cryptic todo item within mmd_cvt_to_types():
(with some context)

        if (sig_elem->vtable->base_type == enum_class_String) {
           STRING * const sig = VTABLE_get_string(interp, sig_elem);
           if (memcmp(sig->strstart, "__VOID", 6) == 0) {
               PMC_int_val(ar)--;  /* XXX */
               break;
           }
           type = pmc_type(interp, sig);
       }