Function eval_comparison_truth_with_engine 

pub fn eval_comparison_truth_with_engine(
    op: BinaryOp,
    left: &Value,
    right: &Value,
    control: &ProductionControl<'_>,
    engine: Option<&dyn EngineHook>,
    state: Option<&EnumComparisonState>,
) -> Result<Option<bool>>

Borrow physical type metadata from scalar hooks even when the embedder provides no enum capability.