Move bitflags module to libstd

This will allow us to provide type-safe APIs in libstd that are C-compatible.

src/libcollections/lib.rs

@@ -42,7 +42,6 @@
 pub use treemap::{TreeMap, TreeSet};
 pub use trie::{TrieMap, TrieSet};
 
-pub mod bitflags;
 pub mod bitv;
 pub mod btree;
 pub mod deque;

src/libstd/bitflags.rs

@@ -17,9 +17,6 @@
 //! # Example
 //!
 //! ~~~rust
-//! #[feature(phase)];
-//! #[phase(syntax)] extern crate collections;
-//!
 //! bitflags!(Flags: u32 {
 //!     FlagA       = 0x00000001,
 //!     FlagB       = 0x00000010,
@@ -41,9 +38,6 @@
 //! The generated `struct`s can also be extended with type and trait implementations:
 //!
 //! ~~~rust
-//! #[feature(phase)];
-//! #[phase(syntax)] extern crate collections;
-//!
 //! use std::fmt;
 //!
 //! bitflags!(Flags: u32 {
@@ -174,6 +168,8 @@ fn sub(&self, other: &$BitFlags) -> $BitFlags {
 
 #[cfg(test)]
 mod tests {
+    use ops::{BitOr, BitAnd, Sub};
+
     bitflags!(Flags: u32 {
         FlagA       = 0x00000001,
         FlagB       = 0x00000010,

src/libstd/lib.rs

@@ -142,7 +142,10 @@ fn start(argc: int, argv: **u8) -> int {
     green::start(argc, argv, rustuv::event_loop, __test::main)
 }
 
+/* Exported macros */
+
 pub mod macros;
+pub mod bitflags;
 
 mod rtdeps;