{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"self.arena.alloc(hir::ConstArg"}]}
                self.arena.alloc(hir::ConstArg { hir_id: self.lower_node_id(c.id), kind: ct_kind })
                let ct_kind = hir::ConstArgKind::Infer(self.lower_span(c.value.span), ());
            }