{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":".walk(&expr,"}]}
            .walk(&expr, &mut |depth, expr| {
            .with_check_ctx(&WalkExpandedExprCtx::is_async_const_block_or_closure)
                let file_id = sema.hir_file_for(expr.syntax());