Add this back in for now. There are still a few passes which create unwind instructions at the moment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136756 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/PathNumbering.cpp b/lib/Analysis/PathNumbering.cpp
index 0708365..0e3b6e6 100644
--- a/lib/Analysis/PathNumbering.cpp
+++ b/lib/Analysis/PathNumbering.cpp
@@ -387,7 +387,7 @@
 
     TerminatorInst* terminator = currentNode->getBlock()->getTerminator();
     if(isa<ReturnInst>(terminator) || isa<UnreachableInst>(terminator)
-       || isa<ResumeInst>(terminator))
+       || isa<ResumeInst>(terminator) || isa<UnwindInst>(terminator))
       addEdge(currentNode, getExit(),0);
 
     currentNode->setColor(BallLarusNode::GRAY);