Allow Platform.executable for JIT app snapshots.

tests/standalone/io/stdin_sync_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// OtherResources=stdin_sync_script.dart
+
 import "dart:convert";
 import "dart:io";
 
 import "package:path/path.dart";
 import "package:expect/expect.dart";
 
 void testReadByte() {
   void test(String line, List<String> expected) {
     var script = Platform.script.resolve("stdin_sync_script.dart").toFilePath();
     Process.start(Platform.executable,
@@ skipping 55 matching lines @@
 
 
 void main() {
   testReadByte();
 
   // testEchoMode and testLineMode is developer-interactive tests, thus not
   // enabled.
   //testEchoMode();
   //testLineMode();
 }