Add test directive to include other files used by a test in its compiled output directory.

tests/standalone/io/read_into_const_list_test.dart

Index: tests/standalone/io/read_into_const_list_test.dart
diff --git a/tests/standalone/io/read_into_const_list_test.dart b/tests/standalone/io/read_into_const_list_test.dart
index 3eb624a2c71928ebee3be84a0ad7fc503d7317cf..11e56ce23efd623399a975a5bc18f929639cfe80 100644
--- a/tests/standalone/io/read_into_const_list_test.dart
+++ b/tests/standalone/io/read_into_const_list_test.dart
@@ -1,6 +1,8 @@
 // Copyright (c) 2012, 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=readline_test1.dat
 
 // Regression test for missing immutability check in the ListSet
 // methods in the API. This allowed overwriting const Lists.
@@ -9,19 +11,15 @@ import "package:expect/expect.dart";
 import "dart:io";
 
 String getFilename(String path) {
-  var testPath = Platform.script.resolve('../../../$path');
-  return new File.fromUri(testPath).existsSync()
-      ? testPath.toFilePath()
-      : Platform.script.resolve('../../../runtime/$path').toFilePath();
+  return Platform.script.resolve(path).toFilePath();
 }
 
-
 void main() {
   var a = const [0];
   var b = const [0];
   Expect.identical(a, b);
 
-  String filename = getFilename("bin/file_test.cc");
+  String filename = getFilename("readline_test1.dat");
   File file = new File(filename);
   file.open().then((input) {
       try {