message: Fix -Wunused-function warning by preprocessor conditionalizing the function the same way as the caller
diff: @@ -21,6 +21,7 @@ void AppendFaultAddr(std::string &str, lldb::addr_t addr) {
  str += ss.str();
  }
  +#if defined(si_lower) && defined(si_upper)
  void AppendBounds(std::string &str, lldb::addr_t lower_bound,
  lldb::addr_t upper_bound, lldb::addr_t addr) {
  llvm::raw_string_ostream stream(str);
  @@ -37,6 +38,7 @@ void AppendBounds(std::string &str, lldb::addr_t lower_bound,
  stream << ")";
  stream.flush();
  }
  +#endif
  CrashReason GetCrashReasonForSIGSEGV(const siginfo_t &info) {
  assert(info.si_signo == SIGSEGV);
  