test: Attempt to fix Windows check-fast resolve bustage. rs=bustage

Author: pcwalton

src/test/run-pass/send-type-inference.rs

@@ -14,7 +14,7 @@ use core::pipes::*;
 type command<K, V> = {key: K, val: V};
 
 fn cache_server<K: Owned, V: Owned>(c: Chan<Chan<command<K, V>>>) {
-    let (ctrl_port, ctrl_chan) = core::pipes::stream();
+    let (ctrl_port, ctrl_chan) = stream();
     c.send(ctrl_chan);
 }
 fn main() { }