{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"ast::ElseBranch::IfExpr(expr)"}]}
        ast::ElseBranch::IfExpr(expr) => Some(expr),
    let if_exprs = successors(Some(if_expr.clone()), |expr| match expr.else_branch()? {
        ast::ElseBranch::Block(block) => {