Add #includes to enable buiding in Release mode

llvm-svn: 1174
diff --git a/llvm/lib/Transforms/Utils/Linker.cpp b/llvm/lib/Transforms/Utils/Linker.cpp
index d5df566..5e0178a 100644
--- a/llvm/lib/Transforms/Utils/Linker.cpp
+++ b/llvm/lib/Transforms/Utils/Linker.cpp
@@ -16,6 +16,7 @@
 #include "llvm/SymbolTable.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/iOther.h"
+#include "llvm/ConstPoolVals.h"
 
 // Error - Simple wrapper function to conditionally assign to E and return true.
 // This just makes error return conditions a little bit simpler...