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

tests/standalone/io/secure_socket_test.dart

Index: tests/standalone/io/secure_socket_test.dart
diff --git a/tests/standalone/io/secure_socket_test.dart b/tests/standalone/io/secure_socket_test.dart
index ed7abf116da23ca0704f2f4ba0166664de0a5722..b520c22fa1f2c947d05b65fb3c08a4cf0568aa99 100644
--- a/tests/standalone/io/secure_socket_test.dart
+++ b/tests/standalone/io/secure_socket_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 WriteAndClose(Socket socket, String message) {
   var data = message.charCodes;