{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"block_as_lone_tail(block).and_then(|e|"}]}
    block_as_lone_tail(block).and_then(|e| match e {
) -> bool {
        ast::Expr::PathExpr(pat) => match sema.resolve_path(&pat.path()?)? {