Add landmines support.

build/get_landmines.py

Index: build/get_landmines.py
diff --git a/build/get_landmines.py b/build/get_landmines.py
new file mode 100755
index 0000000000000000000000000000000000000000..d1b39ab254d48dbd5ac2637e9f47a490bc4187a8
--- /dev/null
+++ b/build/get_landmines.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+# Copyright 2014 the V8 project authors. 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 emits the list of reasons why a particular build needs to be clobbered
+(or a list of 'landmines').
+"""
+
+import sys
+
+
+def main():
+  """
+  ALL LANDMINES ARE EMITTED FROM HERE.
+  """
+  # TODO(machenbach): Uncomment to test if landmines work.
+  # print 'Need to clobber after ICU52 roll.'
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())