When extracting SEME regions of code, the extractor needs to update the dominator tree for split return blocks.
When extracting SEME regions of code, the extractor needs to update the dominator tree for split return blocks.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@79957 91177308-0d34-0410-b5e6-96231b3b80d8

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