{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(sp) = find_attr!(attrs, AttributeKind::ConstStability { span, .. } => *span) {
        // FIXME(jdonszelmann): make it impossible to miss the or_else in the typesystem
            sess.dcx().emit_err(errors::MacroConstStability {