Use MapValue in the Linker instead of having a private function

which does the same thing. This eliminates redundant code and
handles MDNodes better. MDNode linking still doesn't fully
work yet though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111941 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/CloneModule.cpp

@@ -17,7 +17,7 @@
 #include "llvm/DerivedTypes.h"
 #include "llvm/TypeSymbolTable.h"
 #include "llvm/Constant.h"
-#include "ValueMapper.h"
+#include "llvm/Transforms/Utils/ValueMapper.h"
 using namespace llvm;
 
 /// CloneModule - Return an exact copy of the specified module.  This is not as