{"ast_node_type":"other","tokens":[{"end":124,"kind":"keyword","start":0,"text":"//"}]}
            // ty::Adt(def, args) if def.is_box() && args.get(1).map_or(true, |arg| cx.layout_of(arg.expect_ty()).is_1zst())
            }
            // ty::FnDef(..) | ty::FnPtr(..)