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

llvm-svn: 129271
diff --git a/llvm/unittests/VMCore/InstructionsTest.cpp b/llvm/unittests/VMCore/InstructionsTest.cpp
index d286c73..8edcce4 100644
--- a/llvm/unittests/VMCore/InstructionsTest.cpp
+++ b/llvm/unittests/VMCore/InstructionsTest.cpp
@@ -9,6 +9,7 @@
 
 #include "llvm/Instructions.h"
 #include "llvm/BasicBlock.h"
+#include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/LLVMContext.h"
 #include "llvm/ADT/STLExtras.h"