Don't include Operator.h from InstrTypes.h.

llvm-svn: 129271
diff --git a/llvm/lib/VMCore/ConstantFold.cpp b/llvm/lib/VMCore/ConstantFold.cpp
index 573efb7..a12ff82 100644
--- a/llvm/lib/VMCore/ConstantFold.cpp
+++ b/llvm/lib/VMCore/ConstantFold.cpp
@@ -24,6 +24,7 @@
 #include "llvm/Function.h"
 #include "llvm/GlobalAlias.h"
 #include "llvm/GlobalVariable.h"
+#include "llvm/Operator.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/ErrorHandling.h"