ICE with reexported methods and external crates

[brson]

Crate the first

#[link(name = "crate_method_reexport_grrrrrrr2")];

export rust;

import name_pool::methods;

mod name_pool {
 import libc::c_char;

 type name_pool = @{
 mut strbufs: ~[str]
 };

 fn name_pool() -> name_pool {
 @{mut strbufs: ~[]}
 }

 impl methods for name_pool {
 fn add(-s: str) -> *c_char {
 let c_str = str::as_c_str(s, |bytes| bytes);
 self.strbufs += ~[s]; // in theory, this should *move* the str in here..
 ret c_str; // ...and so this ptr ought to be valid.
 }
 }
}

mod rust {

 export rt;
 export methods;

 type rt = @();

 impl methods for rt {
 fn cx() {
 }
 }
}

Crate the second

// aux-build:crate-method-reexport-grrrrrrr2.rs

use crate_method_reexport_grrrrrrr2;

fn main() {
 import crate_method_reexport_grrrrrrr2::rust::methods;
 let x = @();
 x.cx();
}

This runs into missing metadata, presumably because name_pool::methods isn't reachable.

[brson]

Turning off reachability fixes it.

[brson]

Fixed by 46fba10