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

runtime/bin/crypto_sources.gypi

Index: runtime/bin/crypto_sources.gypi
diff --git a/runtime/bin/crypto_sources.gypi b/runtime/bin/crypto_sources.gypi
index 9093cf20855ce208c5fc3c9a98b53a57d842a068..302edbe9d65e286d606db69d80cdf11acc7e959e 100644
--- a/runtime/bin/crypto_sources.gypi
+++ b/runtime/bin/crypto_sources.gypi
@@ -3,9 +3,13 @@
 # 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',