Fix a corner case of isclose usage

nt2 does not handle bool parameters for is_nan or isfinite...
On Thu, Jul 24, 2014 at 09:20:50AM -0700, pbrunet wrote:
> In pythran/pythonic/numpy/isclose.hpp:
> > @@ -6,6 +6,11 @@
> >  #include <nt2/include/functions/is_nan.hpp>
> >  #include <nt2/include/functions/is_finite.hpp>
> >
> > +// nt2 does not handle bool specialization, which is indeed a corner case...
> > +namespace nt2 {
> > +  constexpr bool is_finite(bool) { return true;}
> > +  constexpr bool is_nan(bool) { return false;}
> > +}
> It should not be in pythonic/numpy/isnan.hpp ? (and isfinite?)

I would say yes :-)