message: [lookup][runtime] fix merge issue
diff: @@ -39,6 +39,9 @@ pub enum ExprError {
  #[error("Linearization failed")]
  FailedLinearization,
  +
  + #[error("runtime table not available")]
  + MissingRuntime,
  }
  /// The collection of constants required to evaluate an `Expr`.
  @@ -438,7 +441,7 @@ impl Variable {
  LookupSorted(i) => l.map(|l| l.sorted[i]),
  LookupAggreg => l.map(|l| l.aggreg),
  LookupTable => l.map(|l| l.table),
  - LookupRuntimeTable => l.and_then(|l| l.runtime.ok_or("runtime table not available")),
  + LookupRuntimeTable => l.and_then(|l| l.runtime.ok_or(ExprError::MissingRuntime)),
  Index(GateType::Poseidon) => Ok(evals.poseidon_selector),
  Index(GateType::Generic) => Ok(evals.generic_selector),
  Coefficient(_) | LookupKindIndex(_) | LookupRuntimeSelector | Index(_) => {
  