[llvm-branch-commits] [Clang] Make -falloc-token-mode a hidden frontend option (PR #169359)

[Marco Elver via llvm-branch-commits]

melver wrote:

We don't strictly need this anymore, so I'm inclined to drop this PR. Unless we want to make this option more officially supported, which I think is premature as it commits us to never removing some modes, I'd postpone.

https://github.com/llvm/llvm-project/pull/169359