{"ast_node_type":"function","tokens":[{"end":60,"kind":"keyword","start":0,"text":"fn"}]}
    fn simplify_bool_cmp(&self, rvalue: &mut Rvalue<'tcx>) {
    /// Transform boolean comparisons into logical operations.
        let Rvalue::BinaryOp(op @ (BinOp::Eq | BinOp::Ne), box (a, b)) = &*rvalue else { return };