{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"chalk_ir::ConstValue::Concrete(c)"}]}
            chalk_ir::ConstValue::Concrete(c) => {
        match &c.data(Interner).value {
                if let ConstScalar::UnevaluatedConst(_, subst) = &c.interned {