Remove unused imports throughout src/

src/libcore/unstable/at_exit.rs

@@ -10,9 +10,7 @@
 
 use sys;
 use cast;
-use ptr;
 use task;
-use uint;
 use vec;
 use rand;
 use libc::{c_void, size_t};

src/libcore/unstable/extfmt.rs

@@ -77,9 +77,7 @@ debug!("hello, %s!", "world");
 */
 
 use cmp::Eq;
-use option::{Some, None};
 use prelude::*;
-use str;
 
 /*
  * We have a 'ct' (compile-time) module that parses format strings into a
@@ -98,7 +96,6 @@ pub mod ct {
     use char;
     use prelude::*;
     use str;
-    use vec;
 
     #[deriving_eq]
     pub enum Signedness { Signed, Unsigned, }

src/libcore/unstable/finally.rs

@@ -24,7 +24,6 @@ do || {
 */
 
 use ops::Drop;
-use task::{spawn, failing};
 
 pub trait Finally<T> {
     fn finally(&self, dtor: &fn()) -> T;

src/libcore/unstable/global.rs

@@ -31,16 +31,14 @@ use kinds::Owned;
 use libc::{c_void, uintptr_t};
 use option::{Option, Some, None};
 use ops::Drop;
-use pipes;
 use unstable::{Exclusive, exclusive};
-use unstable::{SharedMutableState, shared_mutable_state};
-use unstable::{get_shared_immutable_state};
 use unstable::at_exit::at_exit;
 use unstable::intrinsics::atomic_cxchg;
 use hashmap::linear::LinearMap;
 use sys::Closure;
-use task::spawn;
-use uint;
+
+#[cfg(test)]
+use private::{SharedMutableState, shared_mutable_state};
 
 pub type GlobalDataKey<T> = &fn(v: T);
 

src/libcore/unstable/lang.rs

@@ -18,7 +18,8 @@ use sys;
 use unstable::exchange_alloc;
 use cast::transmute;
 
-use gc::{cleanup_stack_for_failure, gc, Word};
+#[allow(non_camel_case_types)]
+pub type rust_task = c_void;
 
 #[cfg(target_word_size = "32")]
 pub const FROZEN_BIT: uint = 0x80000000;

src/libcore/unstable/weak_task.rs

@@ -22,7 +22,6 @@ use cell::Cell;
 use comm::{GenericSmartChan, stream};
 use comm::{Port, Chan, SharedChan, GenericChan, GenericPort};
 use hashmap::linear::LinearMap;
-use ops::Drop;
 use option::{Some, None, swap_unwrap};
 use unstable::at_exit::at_exit;
 use unstable::finally::Finally;