[cleanup] Lift using directives, DEBUG_TYPE definitions, and even some

system headers above the includes of generated '.inc' files that
actually contain code. In a few targets this was already done pretty
consistently, but it wasn't done *really* consistently anywhere. It is
strictly cleaner IMO and necessary in a bunch of places where the
DEBUG_TYPE is referenced from the generated code. Consistency with the
necessary places trumps. Hopefully the build bots are OK with the
movement of intrin.h...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206838 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.cpp

@@ -23,6 +23,8 @@
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/Support/TargetRegistry.h"
 
+using namespace llvm;
+
 #define GET_INSTRINFO_MC_DESC
 #include "XCoreGenInstrInfo.inc"
 
@@ -32,8 +34,6 @@
 #define GET_REGINFO_MC_DESC
 #include "XCoreGenRegisterInfo.inc"
 
-using namespace llvm;
-
 static MCInstrInfo *createXCoreMCInstrInfo() {
   MCInstrInfo *X = new MCInstrInfo();
   InitXCoreMCInstrInfo(X);

lib/Target/XCore/XCoreInstrInfo.cpp

@@ -26,6 +26,8 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/TargetRegistry.h"
 
+using namespace llvm;
+
 #define GET_INSTRINFO_CTOR_DTOR
 #include "XCoreGenInstrInfo.inc"
 
@@ -41,9 +43,6 @@ namespace XCore {
 }
 }
 
-using namespace llvm;
-
-
 // Pin the vtable to this file.
 void XCoreInstrInfo::anchor() {}
 

lib/Target/XCore/XCoreRegisterInfo.cpp

@@ -33,13 +33,13 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetOptions.h"
 
-#define GET_REGINFO_TARGET_DESC
-#include "XCoreGenRegisterInfo.inc"
-
 using namespace llvm;
 
 #define DEBUG_TYPE "xcore-reg-info"
 
+#define GET_REGINFO_TARGET_DESC
+#include "XCoreGenRegisterInfo.inc"
+
 XCoreRegisterInfo::XCoreRegisterInfo()
   : XCoreGenRegisterInfo(XCore::LR) {
 }

lib/Target/XCore/XCoreSubtarget.cpp

@@ -15,14 +15,14 @@
 #include "XCore.h"
 #include "llvm/Support/TargetRegistry.h"
 
+using namespace llvm;
+
 #define DEBUG_TYPE "xcore-subtarget"
 
 #define GET_SUBTARGETINFO_TARGET_DESC
 #define GET_SUBTARGETINFO_CTOR
 #include "XCoreGenSubtargetInfo.inc"
 
-using namespace llvm;
-
 void XCoreSubtarget::anchor() { }
 
 XCoreSubtarget::XCoreSubtarget(const std::string &TT,