Roll V8 from f98488781889 to 78e70311aecf (5 revisions)

https://chromium.googlesource.com/v8/v8.git/+log/f98488781889..78e70311aecf

2023-11-30 v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Version 12.1.271
2023-11-30 dinfuehr@chromium.org Revert "[heap] Remove compaction spaces"
2023-11-30 sroettger@google.com [CET] emit endbr64 landing pad instructions
2023-11-30 dmercadier@chromium.org [turboshaft] ISEL: Use correct type in MarkAsRepresentation for LoadOp
2023-11-30 nicohartmann@chromium.org [turboshaft] Merge BigIntEqualOp into BigIntComparisonOp

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/v8-chromium-autoroll
Please CC liviurau@google.com,machenbach@google.com,v8-waterfall-sheriff@grotations.appspotmail.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:linux-blink-rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:dawn-linux-x64-deps-rel
Change-Id: I4cd6b06138c4f7195f8defe6ee72ef989dcab95e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5076290
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Cr-Commit-Position: refs/heads/main@{#1231553}