[llvm] [MC][NFC] Allow MCInstrAnalysis to store state (PR #65479)

[James Henderson via llvm-commits]

https://github.com/jh7370 approved this pull request.

The code formatter check seems to have failed. Might need to run clang-format?

No objections from me - the solution seems reasonably neat. Please give it a few more days to let @MaskRay chime in as he has a better understanding of the MC disassembly stuff than I do and he was away recently, so might still be catching up.

https://github.com/llvm/llvm-project/pull/65479