[compiler-rt] [sanitizer][asan][msvc] Teach GetInstructionSize about many instructions that appear in MSVC generated code. (PR #69490)

[nicole mazzuca via llvm-commits]

https://github.com/strega-nil approved this pull request.

minor comment thing, but this code needs an overhaul anyways so I'm not too concerned.

https://github.com/llvm/llvm-project/pull/69490