src/test/rustdoc-json/unions/union.rs

// @has union.json "$.index[*][?(@.name=='Union')].visibility" \"public\"
// @has - "$.index[*][?(@.name=='Union')].kind" \"union\"
// @!has - "$.index[*][?(@.name=='Union')].inner.struct_type"
pub union Union {
    int: i32,
    float: f32,
}