{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"let"}]}
                    let fnptr_ty = Ty::new_fn_ptr(self.tcx, ty.fn_sig(self.tcx));
                ty::FnDef(..) => {
                    self.demand_coerce(expr, ty, fnptr_ty, None, AllowTwoPhase::No);