Add task::send and task::recv

src/test/stdtest/task.rs

@@ -33,6 +33,14 @@ fn test_join() {
     assert task::join(failtask) == task::tr_failure;
 }
 
+#[test]
+fn test_send_recv() {
+    auto p = port[int]();
+    auto c = chan(p);
+    task::send(c, 10);
+    assert task::recv(p) == 10;
+}
+
 #[test]
 fn test_worker() {
     task::worker(fn(port[int] p) {