{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"self.diag_metadata.currently_processing_impl_trait"}]}
            self.diag_metadata.currently_processing_impl_trait =
            let path: Vec<_> = Segment::from_path(&trait_ref.path);
                Some((trait_ref.clone(), self_type.clone()));