Demangle a name
name - name to demangle
disable_mask - a mask that tells how to demangle the name
it is a good idea to get this mask using
get_inf_attr(INF_SHORT_DN) or get_inf_attr(INF_LONG_DN)
Returns: a demangled name
If the input name cannot be demangled, returns 0
string demangle_name(string name, long disable_mask);