[llvm] Fix 40056: Prevent outlining of blocks with token type instructions (PR #99759)

[via llvm-commits]

hiraditya wrote:

> Do you see any way to actually do the outlining where it is profitable? It seems that the comment saying it is untested is somewhat misleading unless there's reason to believe it can be beneficial.

Amended the comment. I dont have a good rationale where it might be profitable. If someone finds it profitable, we can always revisit this but yeah there is no reason to indicate that in comment right now.

https://github.com/llvm/llvm-project/pull/99759