#[repr(u32)]
//@ is "$.index[?(@.name=='Foo')].attrs" '["#[repr(u32)]"]'
pub enum Foo {
    //@ is    "$.index[?(@.name=='Tuple')].inner.variant.discriminant" null
    //@ count "$.index[?(@.name=='Tuple')].inner.variant.kind.tuple[*]" 0
    Tuple(),
    //@ is    "$.index[?(@.name=='TupleWithDiscr')].inner.variant.discriminant" '{"expr": "1", "value": "1"}'
    //@ count "$.index[?(@.name=='TupleWithDiscr')].inner.variant.kind.tuple[*]" 1
    TupleWithDiscr(i32) = 1,
    //@ is    "$.index[?(@.name=='TupleWithBinDiscr')].inner.variant.discriminant" '{"expr": "0b10", "value": "2"}'
    //@ count "$.index[?(@.name=='TupleWithBinDiscr')].inner.variant.kind.tuple[*]" 2
    TupleWithBinDiscr(i32, i32) = 0b10,
}