We need iostream in PassManagerT.h to use cerr

llvm-svn: 3183
diff --git a/llvm/lib/VMCore/PassManagerT.h b/llvm/lib/VMCore/PassManagerT.h
index b4155e4..3f2dc76 100644
--- a/llvm/lib/VMCore/PassManagerT.h
+++ b/llvm/lib/VMCore/PassManagerT.h
@@ -18,6 +18,7 @@
 #include "llvm/Pass.h"
 #include "Support/CommandLine.h"
 #include <algorithm>
+#include <iostream>
 class Annotable;
 
 //===----------------------------------------------------------------------===//