[libc++][hardening] Introduce a dylib function to log hardening errors.#148266

var-const merged 13 commits intollvm:mainllvm/llvm-project:mainfrom

var-const:varconst/hardening-semantics-log_fatal_errorvar-const/llvm-project:varconst/hardening-semantics-log_fatal_errorCopy head branch name to clipboard