test: Fix more tests.

Author: pcwalton

src/libcore/comm.rs

@@ -565,11 +565,11 @@ mod test {
 
     #[test]
     fn test_oneshot() {
-        let (c, p) = oneshot::init();
+        let (p, c) = oneshot();
 
-        oneshot::client::send(c, ());
+        c.send(());
 
-        recv_one(p)
+        p.recv()
     }
 
     #[test]

src/libcore/pipes.rs

@@ -885,9 +885,9 @@ mod test {
 
     #[test]
     fn test_oneshot() {
-        let (c, p) = oneshot::init();
+        let (p, c) = oneshot();
 
-        oneshot::client::send(c, ());
+        c.send(());
 
         recv_one(p)
     }

src/libstd/future.rs

@@ -185,7 +185,7 @@ mod test {
 
     #[test]
     fn test_from_port() {
-        let (ch, po) = oneshot();
+        let (po, ch) = oneshot();
         send_one(ch, ~"whale");
         let f = from_port(po);
         assert!(f.get() == ~"whale");