Basic dart^2 analyzer tests running.

sdk/bin/dart2analyzer_developer

Index: sdk/bin/dart2analyzer_developer
diff --git a/runtime/lib/json_sources.gypi b/sdk/bin/dart2analyzer_developer
old mode 100644
new mode 100755
similarity index 81%
copy from runtime/lib/json_sources.gypi
copy to sdk/bin/dart2analyzer_developer
index 1622f7bf6d74c4b04b1df5dd2318a6dc1ef69338..558338299731e5604e28be2da8ae8fee9173aaf2
--- a/runtime/lib/json_sources.gypi
+++ b/sdk/bin/dart2analyzer_developer
@@ -1,9 +1,6 @@
+#!/bin/bash
 # 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.
 
-{
-  'sources': [
-    'json_patch.dart',
-  ],
-}
+. ${BASH_SOURCE%_developer}