Add #includes to make up for #includes pruned out of header files.

llvm-svn: 2207
diff --git a/llvm/lib/Transforms/Scalar/DCE.cpp b/llvm/lib/Transforms/Scalar/DCE.cpp
index e0f5287..c48fa2f 100644
--- a/llvm/lib/Transforms/Scalar/DCE.cpp
+++ b/llvm/lib/Transforms/Scalar/DCE.cpp
@@ -30,6 +30,7 @@
 #include "llvm/BasicBlock.h"
 #include "llvm/iTerminators.h"
 #include "llvm/iPHINode.h"
+#include "llvm/ConstantVals.h"
 #include "llvm/Support/CFG.h"
 #include "llvm/Pass.h"
 #include "Support/STLExtras.h"