ICE when using deriving_eq with newtype and tuple structs

[brendanzab]

#[deriving_eq]
struct Foo(int);

fn main() {}

deriving_eq.rs:1:0: 2:6 error: internal compiler error: unimplemented unnamed fields with `deriving_eq`
deriving_eq.rs:1 #[deriving_eq]
deriving_eq.rs:2 struct Foo(int);

---

#[deriving_eq]
struct Foo<T>(T);

fn main() {}

deriving_eq.rs:1:0: 2:6 error: internal compiler error: unimplemented unnamed fields with `deriving_eq`
deriving_eq.rs:1 #[deriving_eq]
deriving_eq.rs:2 struct Foo<T>(T);

---

#[deriving_eq]
struct Foo(int,int);

fn main() {}

deriving_eq.rs:1:0: 2:6 error: internal compiler error: unimplemented unnamed fields with `deriving_eq`
deriving_eq.rs:1 #[deriving_eq]
deriving_eq.rs:2 struct Foo(int,int);

[brendanzab]

@pcwalton: Might be your area of expertise.

[bstrie]

This appears to be fixed.