{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"hir::StructTailExpr::Base(w)"}]}
            hir::StructTailExpr::Base(w) => &*w,
        let with_expr = match *opt_with {
            hir::StructTailExpr::DefaultFields(_) | hir::StructTailExpr::None => {