{"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"hir::TyKind::FnPtr(bf)"}]}
            hir::TyKind::FnPtr(bf) => {
            }
                require_c_abi_if_c_variadic(tcx, bf.decl, bf.abi, hir_ty.span);