Run ControlReducer early after graph building, then again later.

tools/push-to-trunk/test_scripts.py

 #!/usr/bin/env python
 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 795 matching lines @@
       Cmd("git checkout -f origin/candidates -- src/version.cc", "",
           cb=self.WriteFakeVersionFile),
       Cmd("git commit -aF \"%s\"" % TEST_CONFIG["COMMITMSG_FILE"], "",
           cb=CheckSVNCommit),
     ]
     if manual:
       expectations.append(RL("Y"))  # Sanity check.
     expectations += [
       Cmd("git svn dcommit 2>&1", ""),
       Cmd("git fetch", ""),
-      Cmd("git log -1 --format=%H --grep="      
-          "\"Version 3.22.5 (based on push_hash)\""     
+      Cmd("git log -1 --format=%H --grep="
+          "\"Version 3.22.5 (based on push_hash)\""
           " origin/candidates", "hsh_to_tag"),
       Cmd("git tag 3.22.5 hsh_to_tag", ""),
       Cmd("git push origin 3.22.5", ""),
       Cmd("git checkout -f some_branch", ""),
       Cmd("git branch -D %s" % TEST_CONFIG["BRANCHNAME"], ""),
       Cmd("git branch -D %s" % TEST_CONFIG["TRUNKBRANCH"], ""),
     ]
     self.Expect(expectations)
 
     args = ["-a", "author@chromium.org", "--revision", "push_hash",
@@ skipping 883 matching lines @@
 
 Review URL: https://codereview.chromium.org/83173002
 
 ------------------------------------------------------------------------""")
     self.assertEquals(
 """Prepare push to trunk.  Now working on version 3.23.11.
 
 R=danno@chromium.org
 
 Committed: https://code.google.com/p/v8/source/detail?r=17997""", body)