{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"this.arena.alloc(this.expr(gen_future_span,"}]}
                this.arena.alloc(this.expr(gen_future_span, expr_break))
                    hir::ExprKind::Break(this.lower_loop_destination(None), Some(x_expr));
            });