[VE] Create a TargetInfo header. NFC

[kaz7]

Summary

Move the declarations of getThe<Name>Target() functions into a new header in
TargetInfo and make users of these functions include this new header in
order to follow other architectures.

[simoll]

LGTM

llvm/lib/Target/VE/MCTargetDesc/VEMCTargetDesc.h

 class MCRegisterInfo;
 class MCSubtargetInfo;
 class MCTargetOptions;
 class Target;
 class Triple;
 class StringRef;
 class raw_pwrite_stream;
 class raw_ostream;
-
-Target &getTheVETarget();
-
 } // namespace llvm
 
 // Defines symbolic names for VE registers.  This defines a mapping from
 // register name to register number.
 //
 #define GET_REGINFO_ENUM
 #include "VEGenRegisterInfo.inc"
 

llvm/lib/Target/VE/MCTargetDesc/VEMCTargetDesc.cpp

 //===-- VEMCTargetDesc.cpp - VE Target Descriptions -----------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // This file provides VE specific target descriptions.
 //
 //===----------------------------------------------------------------------===//
 
 #include "VEMCTargetDesc.h"
+#include "TargetInfo/VETargetInfo.h"
 #include "VEInstPrinter.h"
 #include "VEMCAsmInfo.h"
 #include "VETargetStreamer.h"
 #include "llvm/MC/MCInstrInfo.h"
 #include "llvm/MC/MCRegisterInfo.h"
 #include "llvm/MC/MCSubtargetInfo.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/TargetRegistry.h"

llvm/lib/Target/VE/TargetInfo/VETargetInfo.h

+//===-- VETargetInfo.h - VE Target Implementation ---------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_VE_TARGETINFO_VETARGETINFO_H
+#define LLVM_LIB_TARGET_VE_TARGETINFO_VETARGETINFO_H
+
+namespace llvm {
+
+class Target;
+
+Target &getTheVETarget();
+
+} // namespace llvm
+
+#endif // LLVM_LIB_TARGET_VE_TARGETINFO_VETARGETINFO_H

llvm/lib/Target/VE/TargetInfo/VETargetInfo.cpp

 //===-- VETargetInfo.cpp - VE Target Implementation -----------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
-#include "VE.h"
-#include "llvm/IR/Module.h"
+#include "TargetInfo/VETargetInfo.h"
 #include "llvm/Support/TargetRegistry.h"
 
 using namespace llvm;
 
 Target &llvm::getTheVETarget() {
   static Target TheVETarget;
   return TheVETarget;
 }
 
 extern "C" void LLVMInitializeVETargetInfo() {
   RegisterTarget<Triple::ve, /*HasJIT=*/false> X(getTheVETarget(), "ve",
                                                  "VE", "VE");
 }

llvm/lib/Target/VE/VEAsmPrinter.cpp

 //===-- VEAsmPrinter.cpp - VE LLVM assembly writer ------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // This file contains a printer that converts from our internal representation
 // of machine-dependent LLVM code to GAS-format VE assembly language.
 //
 //===----------------------------------------------------------------------===//
 
 #include "MCTargetDesc/VEInstPrinter.h"
 #include "MCTargetDesc/VEMCExpr.h"
 #include "MCTargetDesc/VETargetStreamer.h"
+#include "TargetInfo/VETargetInfo.h"
 #include "VE.h"
 #include "VEInstrInfo.h"
 #include "VETargetMachine.h"
 #include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"

llvm/lib/Target/VE/VETargetMachine.cpp

 //===-- VETargetMachine.cpp - Define TargetMachine for VE -----------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 //
 //===----------------------------------------------------------------------===//
 
 #include "VETargetMachine.h"
+#include "TargetInfo/VETargetInfo.h"
 #include "VE.h"
 #include "VETargetTransformInfo.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/IR/LegacyPassManager.h"
 #include "llvm/Support/TargetRegistry.h"