[llvm] draft: Enable libc++ hardening mode for LLVM_ENABLE_ASSERTIONS (PR #130243)

[Brian Cain via llvm-commits]

androm3da wrote:

It's very plausible that I have misunderstood the functionality here.  But it looks to me like the behavior here on the baseline is undesirable.

https://github.com/llvm/llvm-project/pull/130243