Move the canonical header to the top of its matching cpp file as per coding convention

This ensures that the header will be verified to be standalone (and
avoid mistakes like the one fixed in r251178)

llvm-svn: 251326

lib/Transforms/Utils/LoopVersioning.cpp

@@ -13,12 +13,13 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Transforms/Utils/LoopVersioning.h"
+
 #include "llvm/Analysis/LoopAccessAnalysis.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/IR/Dominators.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Transforms/Utils/Cloning.h"
-#include "llvm/Transforms/Utils/LoopVersioning.h"
 
 using namespace llvm;