auto merge of #13184 : alexcrichton/rust/priv-fields, r=brson

This is an implementation of a portion of [RFC #4](https://github.com/rust-lang/rfcs/blob/master/active/0004-private-fields.md). This PR makes named struct fields private by default (as opposed to inherited by default).

The only real meaty change is the first commit to `rustc`, all other commits are just fallout of that change.

Summary of changes made:

* Named fields are private by default *everywhere*
* The `priv` keyword is now default-deny on named fields (done in a "lint" pass in privacy)

Changes yet to be done (before the RFC is closed)

* Change tuple structs to have private fields by default
* Remove `priv` enum variants
* Make `priv` a reserved keyword

1 files changed, 14 insertions, 14 deletions

diff --git a/src/libstd/rt/task.rs b/src/libstd/rt/task.rs
index 211c09977d4..d9700ea9980 100644
--- a/src/libstd/rt/task.rs
+++ b/src/libstd/rt/task.rs
@@ -43,18 +43,18 @@ use unstable::finally::Finally;
 /// in the struct. This contains a pointer to another struct that holds
 /// the type-specific state.
 pub struct Task {
-    heap: LocalHeap,
-    gc: GarbageCollector,
-    storage: LocalStorage,
-    unwinder: Unwinder,
-    death: Death,
-    destroyed: bool,
-    name: Option<SendStr>,
-
-    stdout: Option<~Writer:Send>,
-    stderr: Option<~Writer:Send>,
-
-    priv imp: Option<~Runtime:Send>,
+    pub heap: LocalHeap,
+    pub gc: GarbageCollector,
+    pub storage: LocalStorage,
+    pub unwinder: Unwinder,
+    pub death: Death,
+    pub destroyed: bool,
+    pub name: Option<SendStr>,
+
+    pub stdout: Option<~Writer:Send>,
+    pub stderr: Option<~Writer:Send>,
+
+    imp: Option<~Runtime:Send>,
 }
 
 pub struct GarbageCollector;
@@ -77,11 +77,11 @@ pub enum DeathAction {
 
 /// Per-task state related to task death, killing, failure, etc.
 pub struct Death {
-    on_exit: Option<DeathAction>,
+    pub on_exit: Option<DeathAction>,
 }
 
 pub struct BlockedTasks {
-    priv inner: UnsafeArc<AtomicUint>,
+    inner: UnsafeArc<AtomicUint>,
 }
 
 impl Task {