{"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"if"}]}
    if let OperandKind::Copy(p) | OperandKind::Move(p) = arg.kind {
fn record_usage_for_operand(arg: &Operand, result: &mut ArenaMap<LocalId, MutabilityReason>) {
        record_usage(p.local, result);