{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"diag.arg(\"predicate\","}]}
        diag.arg("predicate", self.predicate);
        diag.primary_message(fluent::lint_drop_trait_constraints);
        diag.arg("needs_drop", self.tcx.def_path_str(self.def_id));