If --liftoff-only is on, we should not execute Turbofan compilation, no
matter what the result of Liftoff compilation was. Right now, decoding
errors are considered bailouts, which make us fall back to Turbofan and
trigger a DCHECK.

Change-Id: Ic12591da256d92fb79578603d4778a3d2aa460ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3574555Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79865}