[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE
definition below all of the header #include lines, lib/Target/...
edition.

llvm-svn: 206842
diff --git a/llvm/lib/Target/ARM/ARMOptimizeBarriersPass.cpp b/llvm/lib/Target/ARM/ARMOptimizeBarriersPass.cpp
index 20619fa..5c665b1 100644
--- a/llvm/lib/Target/ARM/ARMOptimizeBarriersPass.cpp
+++ b/llvm/lib/Target/ARM/ARMOptimizeBarriersPass.cpp
@@ -8,8 +8,6 @@
 //
 //===------------------------------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "double barriers"
-
 #include "ARM.h"
 #include "ARMMachineFunctionInfo.h"
 #include "ARMInstrInfo.h"
@@ -17,6 +15,8 @@
 #include "llvm/CodeGen/MachineFunctionPass.h"
 using namespace llvm;
 
+#define DEBUG_TYPE "double barriers"
+
 STATISTIC(NumDMBsRemoved, "Number of DMBs removed");
 
 namespace {