The entries contain more than just deoptimization info. Thus rename them
to "entries" and use "EntryBuilder" instead of "DeoptimizationInfo".

Drive-by: Remove the redundant {emitted_} field, just check if
{offset_} was initialized.

R=jkummerow@chromium.org

Bug: v8:12401
Change-Id: Ifedc265dc27dd6817b731d9e24a1d8654edc99de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3291310
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77985}