Rafael Espindola 100fbdd06b Always remove an alias when we rename the target.
Should fix the dragonegg build bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183845 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-12 16:45:47 +00:00
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