Bill Wendling c8c0fd3993 Change worklist driven deletion to be an iterative process.
Duncan noticed this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01 21:28:33 +00:00
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