{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"generics:"}]}
                    generics: ast::Generics::default(),
                    ident: Ident::new(fn_.ident.name, sp),
                    ty: cx.ty(sp, ast::TyKind::Path(None, test_path("TestDescAndFn"))),