#[derive(Schema)] not working with StructVariants

[jamesmunns]

The following fails:

#[derive(Serialize, Deserialize, MaxSize, Schema)]
enum Example {
    VarA,
    VarB(u32),
    VarC {
        d: u8,
        e: u16,
    }
}

with

error[E0308]: mismatched types
  --> src/main.rs:45:9
   |
45 |         d: u8,
   |         ^
   |         |
   |         expected `&NamedValue`, found struct `NamedValue`
   |         help: consider borrowing here: `&d`

The derive macro is likely not handling struct variants correctly at the moment.

[jamesmunns]

Tagging @lachlansneff, in case you are interested in tackling this!

[barafael]

I'll grab this one