`SwisstableDebugEnabled()` is also true for release builds with hardening
enabled. To minimize their impact in those builds:
 - use `ABSL_PREDICT_FALSE()` to provide a compiler hint for code layout
 - use `ABSL_RAW_LOG()` with a format string to reduce code size and improve
   the chances that the hot paths will be inlined.

PiperOrigin-RevId: 567102494
Change-Id: I6734bd491d7b2e1fb9df0e86f4e29e6ad0a03102