[MC] Deprecate createMCObjectStreamer with 3 unused trailing bool

Author: MaskRay

llvm/include/llvm/MC/TargetRegistry.h

@@ -23,6 +23,7 @@
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/MC/MCObjectFileInfo.h"
 #include "llvm/Support/CodeGen.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/TargetParser/Triple.h"
@@ -530,6 +531,7 @@ class Target {
                                      std::unique_ptr<MCObjectWriter> OW,
                                      std::unique_ptr<MCCodeEmitter> Emitter,
                                      const MCSubtargetInfo &STI) const;
+  LLVM_DEPRECATED("Use the overload without the 3 trailing bool", "")
   MCStreamer *createMCObjectStreamer(const Triple &T, MCContext &Ctx,
                                      std::unique_ptr<MCAsmBackend> &&TAB,
                                      std::unique_ptr<MCObjectWriter> &&OW,