Implementation cannot be defined for 'type' alias

[araujol]

Code example:

Save this in main.rs and try to compile.

enum T {}
type New = T;

impl New {}

fn main() {}

Trying to compile, it shows this error:

impl.rs:4:1: 4:12 error: cannot associate methods with a type outside the crate the type is defined in; define and implement a trait or new type instead
impl.rs:4 impl New {}
^~~~~~~~~~~
error: aborting due to previous error

Using git master HEAD: 6fcf43e

[klutzy]

dup of #9767?

[steveklabnik]

Yes, this is a duplicate of that issue.