Confusing error message when importing * from private modules

[zeux]

I have two modules, a.rs and b.rs.

a.rs:

#[crate_type = "lib"];

mod test { pub type I = int; }

b.rs:

#[crate_type = "lib"];

extern mod a;
use a::test::*;

fn foo(i: I) {}

I'm compiling it with rustc:

rustc a.rs
rustc -L . b.rs

It used to work, but it now gives the error message:

b.rs:6:10: 6:11 error: use of undeclared type name `I`

However, the problem here is not with I - the problem is with module (adding pub to test module fixes the error). Is it possible to emit an error at 'use a::test::*' instead?

[alexcrichton]

Closing this in favor of #8215. In moving privacy out of resolve, this should yield a much better error message of type "I" is private instead of a cryptic undeclared type name.