Fix "field 'DFS' will be initialized after field 'DTU'" warning. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354123 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopSimplifyCFG.cpp b/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
index 40b3306..c623f94 100644
--- a/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
+++ b/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
@@ -89,8 +89,8 @@
   DominatorTree &DT;
   ScalarEvolution &SE;
   MemorySSAUpdater *MSSAU;
-  DomTreeUpdater DTU;
   LoopBlocksDFS DFS;
+  DomTreeUpdater DTU;
   SmallVector<DominatorTree::UpdateType, 16> DTUpdates;
 
   // Whether or not the current loop has irreducible CFG.