auto merge of #12861 : huonw/rust/lint-owned-vecs, r=thestinger

lint: add lint for use of a `~[T]`.

This is useless at the moment (since pretty much every crate uses
`~[]`), but should help avoid regressions once completely removed from a
crate.

diff --cc src/libgreen/lib.rs
Simple merge

diff --cc src/librustc/lib.rs
Simple merge

diff --cc src/librustdoc/test.rs
Simple merge

diff --cc src/libsync/lib.rs
index dd6ae7c77f5d2a696aea7a700e237799a6e38a11,2b8df3f17c5aa2abb22494fbada3e32d7c3acafd..9a297150db49ce1fd44148879dc7be1797b4b229
--- 1/src/libsync/lib.rs
--- 2/src/libsync/lib.rs
+++ b/src/libsync/lib.rs
@@@ -17,10 -17,12 +17,12 @@@
  #[crate_type = "dylib"];
  #[license = "MIT/ASL2"];
  
+ #[allow(deprecated_owned_vector)];
+ 
  pub use arc::{Arc, MutexArc, RWArc, RWWriteMode, RWReadMode, ArcCondvar, CowArc};
  pub use sync::{Mutex, RWLock, Condvar, Semaphore, RWLockWriteMode,
 -    RWLockReadMode, Barrier, one, mutex};
 -pub use comm::{DuplexStream, SyncChan, SyncPort, rendezvous};
 +               RWLockReadMode, Barrier, one, mutex};
 +pub use comm::{DuplexStream, SyncSender, SyncReceiver, rendezvous, duplex};
  pub use task_pool::TaskPool;
  pub use future::Future;
  

diff --cc src/libtest/lib.rs
Simple merge