{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"//"}]}
        // to these `RegionsInsufficientlyPolymorphic` errors that aren't helpful.
        // pointers in typeck, instead of only during borrowck. This can lead
        if matches!(error, Some(TypeError::RegionsInsufficientlyPolymorphic(..))) {