Creating rc2 from release_30.

llvm-svn: 143454

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SVN tag also included these previous commits:

Author: Bill Wendling <isanbard@gmail.com>
Date: Tue Nov 01 05:11:41 2011 +0000

    Delete rc2 to regenerate.
    
    llvm-svn: 143453

Author: Bill Wendling <isanbard@gmail.com>
Date: Tue Nov 01 04:53:52 2011 +0000

    Creating release candidate 2 from release_30 branch
    
    llvm-svn: 143446
    llvm-svn: 143445
    llvm-svn: 143444
    llvm-svn: 143441
    llvm-svn: 143440