Add a printer case for the some new AST types.
Add a printer case for the some new AST types.

Many of these types are technically printable, and someone should write
actual printer cases for them. Possibly that person should be me.

shumov/recast,kyldvs/recast,ersengultepe/recast,benjamn/recast,benjamn/recast,rwaldron/recast,marcioj/recast,stefanpenner/recast,cpojer/recast,kassens/recast,ipeychev/recast,benjamn/recast,fkling/recast