Rewrite #includes for llvm/Foo.h to llvm/IR/Foo.h as appropriate to
reflect the migration in r171366.

llvm-svn: 171370
diff --git a/polly/lib/CodeGen/LoopGenerators.cpp b/polly/lib/CodeGen/LoopGenerators.cpp
index 230cb63..7dd0847 100644
--- a/polly/lib/CodeGen/LoopGenerators.cpp
+++ b/polly/lib/CodeGen/LoopGenerators.cpp
@@ -15,9 +15,9 @@
 #include "polly/ScopDetection.h"
 #include "polly/CodeGen/LoopGenerators.h"
 
-#include "llvm/Module.h"
+#include "llvm/IR/Module.h"
 #include "llvm/Analysis/Dominators.h"
-#include "llvm/DataLayout.h"
+#include "llvm/IR/DataLayout.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 
 using namespace llvm;