Feature flag collections_range

Author: Ulrik Sverdrup

src/libcollections/range.rs

@@ -7,13 +7,13 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+#![unstable(feature = "collections_range", reason = "was just added")]
 
 //! Range syntax.
 
 use core::option::Option::{self, None, Some};
 use core::ops::{RangeFull, Range, RangeTo, RangeFrom};
 
-#[unstable(feature = "collections", reason = "was just added")]
 /// **RangeArgument** is implemented by Rust's built-in range types, produced
 /// by range syntax like `..`, `a..`, `..b` or `c..d`.
 pub trait RangeArgument<T> {
@@ -29,20 +29,16 @@ pub trait RangeArgument<T> {
 }
 
 
-#[unstable(feature = "collections", reason = "was just added")]
 impl<T> RangeArgument<T> for RangeFull {}
 
-#[unstable(feature = "collections", reason = "was just added")]
 impl<T> RangeArgument<T> for RangeFrom<T> {
     fn start(&self) -> Option<&T> { Some(&self.start) }
 }
 
-#[unstable(feature = "collections", reason = "was just added")]
 impl<T> RangeArgument<T> for RangeTo<T> {
     fn end(&self) -> Option<&T> { Some(&self.end) }
 }
 
-#[unstable(feature = "collections", reason = "was just added")]
 impl<T> RangeArgument<T> for Range<T> {
     fn start(&self) -> Option<&T> { Some(&self.start) }
     fn end(&self) -> Option<&T> { Some(&self.end) }