[clang] [lldb] [llvm] [mlir] [Support] Validate number of arguments passed to formatv() (PR #105745)

[Mehdi Amini via cfe-commits]

joker-eph wrote:

Having this enabled guarded by NDEBUG seems like a good option. There is already some things already like this isn't there? I kind of remember that using imbalanced `{` / `}` pair of something like that was checked only in assert builds?

https://github.com/llvm/llvm-project/pull/105745