Remove old #import, #source, and #library syntax from tests/standalone.

tests/standalone/io/secure_stream_test.dart

Index: tests/standalone/io/secure_stream_test.dart
diff --git a/tests/standalone/io/secure_stream_test.dart b/tests/standalone/io/secure_stream_test.dart
index 8d514e6bf4a5016f3b8029454ab68944f843813d..63c0fce8558cd9a77de803af334566f5c14b3819 100644
--- a/tests/standalone/io/secure_stream_test.dart
+++ b/tests/standalone/io/secure_stream_test.dart
@@ -8,8 +8,8 @@
 // www.google.dk.  Add this to the test when we have secure server sockets.
 // See TODO below.
 
-#import("dart:isolate");
-#import("dart:io");
+import "dart:isolate";
+import "dart:io";
 
 void main() {
   ReceivePort keepAlive = new ReceivePort();