[llvm] [M68k] Fix ODR violation in GISel code (PR #72797)

[Min-Yih Hsu via llvm-commits]

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@@ -64,8 +64,8 @@ struct M68kIncomingValueHandler : public CallLowering::IncomingValueHandler {
                            ISD::ArgFlagsTy Flags) override;
 };
 
-struct FormalArgHandler : public M68kIncomingValueHandler {
-  FormalArgHandler(MachineIRBuilder &MIRBuilder, MachineRegisterInfo &MRI)
+struct M68kFormalArgHandler : public M68kIncomingValueHandler {
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mshockwave wrote:

In addition to renaming to M68kFormalArgHandler, could we also move this to M68kCallLowering.cpp? I don't think it is exposed to other part of the backend.

https://github.com/llvm/llvm-project/pull/72797