Function strengthen_input 

pub fn strengthen_input(
    bundle: Value,
    scenarios: &[ScenarioRef],
    files: &[String],
    manifest: &str,
    visible: &[(String, String)],
    weak: Value,
    instructions: &[Instruction],
) -> Tainted<Value>

The input for strengthening a weak set: the visible run’s, plus the tests so far and what got through (described by the judge, never shown to the implementer).