Switch from using CallInst's to represent call sites to using the LLVM
CallSite class.  Now we can represent function calls by invoke instructions
too!

llvm-svn: 8629
diff --git a/llvm/lib/Analysis/DataStructure/BottomUpClosure.cpp b/llvm/lib/Analysis/DataStructure/BottomUpClosure.cpp
index dd141f2..f5d435f 100644
--- a/llvm/lib/Analysis/DataStructure/BottomUpClosure.cpp
+++ b/llvm/lib/Analysis/DataStructure/BottomUpClosure.cpp
@@ -253,7 +253,8 @@
       Graph.mergeInGraph(CS, *Callee, Graph, 0);
 
     } else {
-      ActualCallees.insert(std::make_pair(&CS.getCallInst(), Callee));
+      ActualCallees.insert(std::make_pair(CS.getCallSite().getInstruction(),
+                                          Callee));
 
       // Get the data structure graph for the called function.
       //