Move VM specific library files to the runtime/lib directory so they do

runtime/bin/crypto_sources.gypi

 # 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.
 
 # This file contains all sources for the dart:crypto library.
+#
+# TODO(ager): ../lib/crypto/crypto_vm.dart should be removed when the
+# VM can use the #source directive for libraries.  At that point
+# ../../lib/crypto/crypto.dart should be the only crypto library file.
 {
   'sources': [
-    '../../lib/crypto/crypto_vm.dart',
+    '../lib/crypto/crypto_vm.dart',
     '../../lib/crypto/crypto_utils.dart',
     '../../lib/crypto/hash_utils.dart',
     '../../lib/crypto/hmac.dart',
     '../../lib/crypto/md5.dart',
     '../../lib/crypto/sha1.dart',
     '../../lib/crypto/sha256.dart',
   ],
 }