{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"Const::Val(_,"}]}
                    Const::Val(_, ty) => {
                    Const::Ty(_, ct) => self.visit_ty_const($(&$mutability)? *ct, location),
                        self.visit_ty($(& $mutability)? *ty, TyContext::Location(location));