swc/crates/swc_css_parser/tests/recovery/function/input.css

div {
    prop: func(1 + 2);
    prop: func(ident.ident);
    prop: func3(   ident.ident   );
    prop: func([foo bar]);
    prop: func((foo, bar));
    prop: func({ foo: bar });
    prop: func(1, 2);
}