librustc: Remove `~EXPR`, `~TYPE`, and `~PAT` from the language, except

for `~str`/`~[]`.

Note that `~self` still remains, since I forgot to add support for
`Box<self>` before the snapshot.

How to update your code:

* Instead of `~EXPR`, you should write `box EXPR`.

* Instead of `~TYPE`, you should write `Box<Type>`.

* Instead of `~PATTERN`, you should write `box PATTERN`.

[breaking-change]

1 files changed, 2 insertions, 1 deletions

diff --git a/src/libstd/comm/select.rs b/src/libstd/comm/select.rs
index c286fd84849..cebfeb5399e 100644
--- a/src/libstd/comm/select.rs
+++ b/src/libstd/comm/select.rs
@@ -52,6 +52,7 @@ use kinds::marker;
 use kinds::Send;
 use ops::Drop;
 use option::{Some, None, Option};
+use owned::Box;
 use ptr::RawPtr;
 use result::{Ok, Err, Result};
 use rt::local::Local;
@@ -176,7 +177,7 @@ impl Select {
             // Acquire a number of blocking contexts, and block on each one
             // sequentially until one fails. If one fails, then abort
             // immediately so we can go unblock on all the other receivers.
-            let task: ~Task = Local::take();
+            let task: Box<Task> = Local::take();
             task.deschedule(amt, |task| {
                 // Prepare for the block
                 let (i, handle) = iter.next().unwrap();