Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork."

tools/patch_sdk.py

Index: tools/patch_sdk.py
diff --git a/tools/patch_sdk.py b/tools/patch_sdk.py
new file mode 100644
index 0000000000000000000000000000000000000000..bfc832733204232aae2d8a082ee2b28e49ad5b32
--- /dev/null
+++ b/tools/patch_sdk.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+# Copyright (c) 2016, 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.
+
+import os
+import subprocess
+import sys
+import utils
+
+def main():
+  dart = os.path.join(utils.CheckedInSdkPath(), 'bin', 'dart')
+  dart_file = os.path.join(os.path.dirname(__file__), 'patch_sdk.dart')
+  subprocess.check_call([dart, dart_file] + sys.argv[1:]);
+
+if __name__ == '__main__':
+  main()