{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"err.span_label(field.span,"}]}
        err.span_label(field.span, "unknown field");
    fn suggest_first_deref_field(&self, err: &mut Diag<'_>, base: &hir::Expr<'_>, field: Ident) {
        let val = if let Ok(base) = self.tcx.sess.source_map().span_to_snippet(base.span)