{"ast_node_type":"impl","tokens":[{"end":90,"kind":"keyword","start":0,"text":"//"}]}
                // `Drop` impl exists, and it's const. Require `Ty: [const] Drop` to hold.
                Some(AdtDestructorKind::NotConst) => return Err(NoSolution),
                Some(AdtDestructorKind::Const) => {