Add explicit #includes of <iostream>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25509 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index da85416..1159cd3 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -23,6 +23,7 @@
 #include <functional>
 #include <set>
 #include <map>
+#include <iostream>
 using namespace llvm;
 
 /// SafeToMergeTerminators - Return true if it is safe to merge these two