feat: error handling

evaluator/nixjit_builtins/src/lib.rs

@@ -21,8 +21,6 @@ pub mod builtins {
             (Int(a), Float(b)) => Float(a as f64 + b),
             (Float(a), Int(b)) => Float(a + b as f64),
             (Float(a), Float(b)) => Float(a + b),
-            (a @ Value::Catchable(_), _) => a,
-            (_, b @ Value::Catchable(_)) => b,
             _ => return Err(Error::EvalError(format!(""))),
         })
     }