Set unstable feature names appropriately

* `core` - for the core crate
* `hash` - hashing
* `io` - io
* `path` - path
* `alloc` - alloc crate
* `rand` - rand crate
* `collections` - collections crate
* `std_misc` - other parts of std
* `test` - test crate
* `rustc_private` - everything else

5 files changed, 28 insertions, 26 deletions

diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs
index 821933f3f0a..ad4cb2076c2 100644
--- a/src/liballoc/arc.rs
+++ b/src/liballoc/arc.rs
@@ -126,7 +126,7 @@ unsafe impl<T: Sync + Send> Sync for Arc<T> { }
 /// Weak pointers will not keep the data inside of the `Arc` alive, and can be used to break cycles
 /// between `Arc` pointers.
 #[unsafe_no_drop_flag]
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 pub struct Weak<T> {
     // FIXME #12808: strange name to try to avoid interfering with
@@ -180,7 +180,7 @@ impl<T> Arc<T> {
     ///
     /// let weak_five = five.downgrade();
     /// ```
-    #[unstable(feature = "unnamed_feature",
+    #[unstable(feature = "alloc",
                reason = "Weak pointers may not belong in this module.")]
     pub fn downgrade(&self) -> Weak<T> {
         // See the clone() impl for why this is relaxed
@@ -202,12 +202,12 @@ impl<T> Arc<T> {
 
 /// Get the number of weak references to this value.
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn weak_count<T>(this: &Arc<T>) -> uint { this.inner().weak.load(SeqCst) - 1 }
 
 /// Get the number of strong references to this value.
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn strong_count<T>(this: &Arc<T>) -> uint { this.inner().strong.load(SeqCst) }
 
 #[stable(feature = "grandfathered", since = "1.0.0")]
@@ -273,7 +273,7 @@ impl<T: Send + Sync + Clone> Arc<T> {
     /// let mut_five = five.make_unique();
     /// ```
     #[inline]
-    #[unstable(feature = "unnamed_feature")]
+    #[unstable(feature = "alloc")]
     pub fn make_unique(&mut self) -> &mut T {
         // Note that we hold a strong reference, which also counts as a weak reference, so we only
         // clone if there is an additional reference of either kind.
@@ -357,7 +357,7 @@ impl<T: Sync + Send> Drop for Arc<T> {
     }
 }
 
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 impl<T: Sync + Send> Weak<T> {
     /// Upgrades a weak reference to a strong reference.
@@ -396,7 +396,7 @@ impl<T: Sync + Send> Weak<T> {
     }
 }
 
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 impl<T: Sync + Send> Clone for Weak<T> {
     /// Makes a clone of the `Weak<T>`.
diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs
index 7351f1f3306..ed371e577a6 100644
--- a/src/liballoc/boxed.rs
+++ b/src/liballoc/boxed.rs
@@ -44,7 +44,7 @@ use core::ops::{Deref, DerefMut};
 /// }
 /// ```
 #[lang = "exchange_heap"]
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "may be renamed; uncertain about custom allocator design")]
 pub static HEAP: () = ();
 
@@ -126,7 +126,7 @@ impl<S: hash::Hasher, T: ?Sized + Hash<S>> Hash<S> for Box<T> {
 }
 
 /// Extension methods for an owning `Any` trait object.
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "this trait will likely disappear once compiler bugs blocking \
                      a direct impl on `Box<Any>` have been fixed ")]
 // FIXME(#18737): this should be a direct impl on `Box<Any>`. If you're
diff --git a/src/liballoc/heap.rs b/src/liballoc/heap.rs
index 19496616a5d..9a72d7d0510 100644
--- a/src/liballoc/heap.rs
+++ b/src/liballoc/heap.rs
@@ -80,7 +80,7 @@ pub fn usable_size(size: uint, align: uint) -> uint {
 ///
 /// These statistics may be inconsistent if other threads use the allocator
 /// during the call.
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn stats_print() {
     imp::stats_print();
 }
diff --git a/src/liballoc/lib.rs b/src/liballoc/lib.rs
index c30bd280c8f..cadb8907cf8 100644
--- a/src/liballoc/lib.rs
+++ b/src/liballoc/lib.rs
@@ -57,7 +57,7 @@
 //! default global allocator. It is not compatible with the libc allocator API.
 
 #![crate_name = "alloc"]
-#![unstable(feature = "unnamed_feature")]
+#![unstable(feature = "alloc")]
 #![feature(staged_api)]
 #![staged_api]
 #![crate_type = "rlib"]
@@ -70,8 +70,10 @@
 #![feature(lang_items, unsafe_destructor)]
 #![feature(box_syntax)]
 #![feature(optin_builtin_traits)]
-#![feature(unnamed_feature)]
 #![allow(unknown_features)] #![feature(int_uint)]
+#![feature(core)]
+#![feature(hash)]
+#![feature(libc)]
 
 #[macro_use]
 extern crate core;
diff --git a/src/liballoc/rc.rs b/src/liballoc/rc.rs
index 4e3c165361b..81336cfd230 100644
--- a/src/liballoc/rc.rs
+++ b/src/liballoc/rc.rs
@@ -268,7 +268,7 @@ impl<T> Rc<T> {
     /// let weak_five = five.downgrade();
     /// ```
     #[cfg(stage0)] // NOTE remove after next snapshot
-    #[unstable(feature = "unnamed_feature",
+    #[unstable(feature = "alloc",
                reason = "Weak pointers may not belong in this module")]
     pub fn downgrade(&self) -> Weak<T> {
         self.inc_weak();
@@ -291,7 +291,7 @@ impl<T> Rc<T> {
     /// let weak_five = five.downgrade();
     /// ```
     #[cfg(not(stage0))] // NOTE remove cfg after next snapshot
-    #[unstable(feature = "unnamed_feature",
+    #[unstable(feature = "alloc",
                reason = "Weak pointers may not belong in this module")]
     pub fn downgrade(&self) -> Weak<T> {
         self.inc_weak();
@@ -301,12 +301,12 @@ impl<T> Rc<T> {
 
 /// Get the number of weak references to this value.
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn weak_count<T>(this: &Rc<T>) -> uint { this.weak() - 1 }
 
 /// Get the number of strong references to this value.
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn strong_count<T>(this: &Rc<T>) -> uint { this.strong() }
 
 /// Returns true if there are no other `Rc` or `Weak<T>` values that share the same inner value.
@@ -322,7 +322,7 @@ pub fn strong_count<T>(this: &Rc<T>) -> uint { this.strong() }
 /// rc::is_unique(&five);
 /// ```
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn is_unique<T>(rc: &Rc<T>) -> bool {
     weak_count(rc) == 0 && strong_count(rc) == 1
 }
@@ -344,7 +344,7 @@ pub fn is_unique<T>(rc: &Rc<T>) -> bool {
 /// assert_eq!(rc::try_unwrap(x), Err(Rc::new(4u)));
 /// ```
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn try_unwrap<T>(rc: Rc<T>) -> Result<T, Rc<T>> {
     if is_unique(&rc) {
         unsafe {
@@ -378,7 +378,7 @@ pub fn try_unwrap<T>(rc: Rc<T>) -> Result<T, Rc<T>> {
 /// assert!(rc::get_mut(&mut x).is_none());
 /// ```
 #[inline]
-#[unstable(feature = "unnamed_feature")]
+#[unstable(feature = "alloc")]
 pub fn get_mut<'a, T>(rc: &'a mut Rc<T>) -> Option<&'a mut T> {
     if is_unique(rc) {
         let inner = unsafe { &mut **rc._ptr };
@@ -404,7 +404,7 @@ impl<T: Clone> Rc<T> {
     /// let mut_five = five.make_unique();
     /// ```
     #[inline]
-    #[unstable(feature = "unnamed_feature")]
+    #[unstable(feature = "alloc")]
     pub fn make_unique(&mut self) -> &mut T {
         if !is_unique(self) {
             *self = Rc::new((**self).clone())
@@ -695,7 +695,7 @@ impl<S: hash::Hasher, T: Hash<S>> Hash<S> for Rc<T> {
     }
 }
 
-#[unstable(feature = "unnamed_feature", reason = "Show is experimental.")]
+#[unstable(feature = "alloc", reason = "Show is experimental.")]
 impl<T: fmt::Show> fmt::Show for Rc<T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "Rc({:?})", **self)
@@ -716,7 +716,7 @@ impl<T: fmt::String> fmt::String for Rc<T> {
 /// See the [module level documentation](../index.html) for more.
 #[unsafe_no_drop_flag]
 #[cfg(stage0)] // NOTE remove impl after next snapshot
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 pub struct Weak<T> {
     // FIXME #12808: strange names to try to avoid interfering with
@@ -732,7 +732,7 @@ pub struct Weak<T> {
 ///
 /// See the [module level documentation](../index.html) for more.
 #[unsafe_no_drop_flag]
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 #[cfg(not(stage0))] // NOTE remove cfg after next snapshot
 pub struct Weak<T> {
@@ -748,7 +748,7 @@ impl<T> !marker::Send for Weak<T> {}
 impl<T> !marker::Sync for Weak<T> {}
 
 
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 impl<T> Weak<T> {
     /// Upgrades a weak reference to a strong reference.
@@ -850,7 +850,7 @@ impl<T> Drop for Weak<T> {
     }
 }
 
-#[unstable(feature = "unnamed_feature",
+#[unstable(feature = "alloc",
            reason = "Weak pointers may not belong in this module.")]
 impl<T> Clone for Weak<T> {
     /// Makes a clone of the `Weak<T>`.
@@ -894,7 +894,7 @@ impl<T> Clone for Weak<T> {
     }
 }
 
-#[unstable(feature = "unnamed_feature", reason = "Show is experimental.")]
+#[unstable(feature = "alloc", reason = "Show is experimental.")]
 impl<T: fmt::Show> fmt::Show for Weak<T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "(Weak)")