{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"self.demand_eqtype(span,"}]}
                    self.demand_eqtype(span, inferred_fnptr_sig, generalized_fnptr_sig);
                    let inferred_fnptr_sig = Ty::new_fn_ptr(self.tcx, inferred_sig.sig);