[Nios2] Update overrides to new virtual method signatures

[cag]

Summary

Enabling Nios2 as an experimental target causes build to break because the overridden methods in Nios2AsmBackend do not have signatures matching the new ones in MCAsmBackend. This patch addresses that.

[craig.topper]

lib/Target/Nios2/MCTargetDesc/Nios2AsmBackend.h

43–44

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59

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[cag]

Wrapped lines at 80 characters

[craig.topper]

LGTM

[craig.topper]

Do you need me to commit this?

[craig.topper]

On second thought. I'm proposing we just nuke this backend all together.

lib/Target/Nios2/MCTargetDesc/Nios2AsmBackend.h

 
   void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
                   const MCValue &Target, MutableArrayRef<char> Data,
-                  uint64_t Value, bool IsResolved) const override;
+                  uint64_t Value, bool IsResolved,
+                  const MCSubtargetInfo *STI) const override;
 
   Optional<MCFixupKind> getFixupKind(StringRef Name) const override;
   const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;

   /// relaxation.
   ///
   /// \param Inst - The instruction to test.
-  bool mayNeedRelaxation(const MCInst &Inst) const override { return false; }
+  /// \param STI - The MCSubtargetInfo in effect when the instruction was
+  /// encoded.
+  bool mayNeedRelaxation(const MCInst &Inst,
+                         const MCSubtargetInfo &STI) const override {
+    return false;
+  }
 
   /// fixupNeedsRelaxation - Target specific predicate for whether a given
   /// fixup requires the associated instruction to be relaxed.

lib/Target/Nios2/MCTargetDesc/Nios2AsmBackend.cpp

 void Nios2AsmBackend::applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
                                  const MCValue &Target,
                                  MutableArrayRef<char> Data, uint64_t Value,
-                                 bool IsResolved) const {
+                                 bool IsResolved,
+                                 const MCSubtargetInfo *STI) const {
   MCFixupKind Kind = Fixup.getKind();
   Value = adjustFixupValue(Fixup, Value);