Function handle_revert 

fn handle_revert(
    is_cheatcode: bool,
    revert_params: &impl RevertParameters,
    status: InstructionResult,
    retdata: &Bytes,
    known_contracts: &Option<ContractsByArtifact>,
    reverter: Option<&Address>,
) -> Result<(), Error>

Core logic for handling reverts that may or may not be expected (or assumed).