Updated mangling specs

[Daveed Vandevoorde]

Martin von Loewis wrote:
> 
> > 18) "_F4makeI7FactoryiETT1_IT2_E": T1<T2> make();
> >                                           // T1 == template template parameter
> 
> What happened to Factory, int? Is this
> 
>    Factory<int> make<Factory,int>();

Oops!  Yes, that's exactly it.  T1 is a template template parameter.
I'm actually no longer convinced that we need to distinguish template
template parameters from type and nontype template parameters.  If so,
TT1_ in the above could probably just be T1_.

	Daveed