{"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"let"}]}
        let mut diag = Diag::new(dcx, level, fluent::hir_typeck_break_non_loop);
    fn into_diag(self, dcx: DiagCtxtHandle<'_>, level: Level) -> Diag<'_, G> {
        diag.span(self.span);