This makes usages less verbose, and is consistent with other existing
enums.
Also, we can use brace initialization to avoid boilerplate when creating
a DynamicTiering value.

Drive-by: Rename a 'kIncludeLiftoff' variable to 'include_liftoff'
because it is not a static constant.

R=jkummerow@chromium.org

Bug: v8:12281
Change-Id: Ie45fdb550241a8b9ca4e2a31b7c27500939fa247
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585566Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79993}

This improves the experience over an SSH connection.

No-Try: true
Change-Id: Id6971f2ad2c75c85f91bea71f7215ce7a948ee71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586987
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79992}

- Start moving profiler scripts to tools/profiling
- Add linux-perf-d8.py wrapper script that runs `perf record` and
  `perf inject`
- Improve waiting for the d8/chrome process and allow for early
  termination if --timeout is provided
- Allow fractional seconds for --timeout
- Delete run-perf.sh and provide equivalent functionality in
  linux-perf-d8.py

Change-Id: Iac1d6cf895aa7159a9bbb387aca7632df27a0ca3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585951Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79991}

- Rename CodeEventDispatcher to LogEventDispatcher
- Use std::vector instead of std::unordered_set, dispatching speed is
  more important than addition/removal of listeners
- Changing the LogEventDispatcher code to be more code-search friendly
- Use a raw pointer for the LogEventDispatcher instance on the isolate
  it's a single-owned entity

Bug: v8:12795
Change-Id: I139f05431519c18cba33d1506467be918f52658c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582125Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79990}

This allows to turn two field in the LiftoffAssembler into constants.

R=thibaudm@chromium.org

Bug: v8:12425
Change-Id: Ie39ca73d6bb704b42bd449eed984f426e69deeb5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585956Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79989}

No-Try: true
Bug: v8:11428
Change-Id: Ia06f5a99f851325103ad1860bf44a7313ea541f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3581723Reviewed-by: Almothana Athamneh <almuthanna@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79988}

We don't actually ever need the MaglevCompiler instance.

Bug: v8:7700
Change-Id: I876353310cf34971b72b08d2113d87caaa255e13
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585957
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79987}

Change-Id: Idb40d6a544cebbdd127eb3c8d71f11adf6ac6a97
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586227Reviewed-by: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79986}

Change-Id: I0dbb0e800908d02a783393c3e329d306316b03c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585949
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79985}

Bug: chromium:1315901
Change-Id: I99ed1562356676f54e69a832c8e862c1cf74fb07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585948Reviewed-by: Samuel Groß <saelo@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79984}

Bug: v8:12161
Change-Id: Idb393836d787f348462c263c7f61e1a8b02b6729
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582390
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79983}

..., this.x(), this.?x and this?.x(). For common
case like these, it's not necessary to store the
source position for the ThisExpression. And we
could use the cached kNoSourcePosition ThisExpression
for these.

Bug: v8:10914
Change-Id: I02e2bc1633f6da036535d7a76bdabeac0d22f4d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585490Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#79982}

.. instead of through urgency. Whenever we target a specific JumpLoop,
the install target should be used instead of the generic urgency
mechanism.

Bug: v8:12161
Change-Id: I2e5cb604ce237bcc788dfc4288150881510bf6af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3578800Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79981}

This is a reland of commit a4216b7b

Original change's description:
> [osr] Extract extended OSR checks to BaselineOnStackReplacement builtin
>
> .. to reduce Sparkplug code size.
>
> Bug: v8:12161
> Change-Id: I4029a75dfa37f716c285ce27153c077a0a82a341
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3576119
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79962}

Bug: v8:12161
Change-Id: I69afd0832d7ca447b5481651ef47ebaa8d023ded
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585943
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79980}

Change-Id: I95a5768af19174275e2828136ce3ff772886e84f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585499Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79979}

 Update the size to kTierupBudgetOffset.

Change-Id: Ibe241211ef67148fae3a4a9eed271f9293ca4801
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585492Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79978}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b37c340..67d9897

Rolling v8/buildtools/linux64: git_revision:ae110f8b525009255ba1f9ae96982176d3bfad3d..git_revision:0cbe341c1a28037ee32d21b589030a7df0b9fdab

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/c39fea8..bbcbce9

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/3a1ae18..90316ac

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/3b97fa8..3c6f0eb

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/b5e2f7c..9199dc2

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: I0b4e855b5c28652f425db99a109bfcc26ad9dca3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586225
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79977}

CL also adds TODO items to implement this functionality on
disassembler and the simulator.

The R bit which enables PC-relative capabilities when set is
not being used during codegen at the moment.

Change-Id: I0927d9be37a50beecf9b6a052e378dca7604513b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584535Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79976}

With the switch to primitive ids make sure no profiler can be returned
with the same id.

Bug: chromium:1297283
Change-Id: I9cf944e9a472ea45679feb0f30137dba95a32ca6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582786
Auto-Submit: Corentin Pescheloche <cpescheloche@fb.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79975}

Bug: chromium:1029379
Change-Id: I34e988c0e14441afe821a35505c4ce3f1eee8fc4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584118Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79974}

CacheInitialJSArrayMaps was called in the middle of
JSFunction::SetPrototype even though this only happens during
bootstrapping given that Array.prototype os non-configurable and
non-writable.

Changes:
- Rename CacheInitialArrayMaps to InitializeJSArrayMaps
- Add more explicit checks in InitializeJSArrayMaps to link back
  to the Context indices for better code searching


Change-Id: Iad6d20e3d67d715bfd6429037c75ac35ab7f399f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3571889Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79973}

Change-Id: I205f055af95bd92a84f0a2bc5bbe4d2633e4a8cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584530Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79972}

This is a reland of commit 38767476

Changes since revert: None, original failure was caused by another CL

Original change's description:
> [heap] Skip weak heap objects when sharedness doesn't match
>
> During marking, shared objects should not be marked when not
> marking the shared heap (i.e. when not doing a shared GC).
> Doing so is unsafe, as marking can race with sweeper threads
> sweeping the shared heap. This CL adds the missing check on
> weak object marking.
>
> Bug: v8:12687
> Change-Id: I1e0b8ba6b09bbcf665e5ff0f6242ed88f543c1fa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3583610
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79964}

Bug: v8:12687
Change-Id: Ia24ff5daa4d37daf73391c0e577b086611c5e496
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584600
Owners-Override: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79971}

This CL adds prefixed load scalar and floating point
instructions to the assembler and uses it during code generation
if the processor supports it. They have also been added to the disassembler and the simulator.

Drive-by: emit_prefix is now making sure a trampoline doesn't
get emitted in between prefix and suffix. Assembler needs to
block it using BlockTrampolinePoolScope.
Drive-by: more CHECKs are added to the assembler to make sure
immediate values have the correct length.

Change-Id: Ic5e38926c65364bc97aba0b7638dde5f365ec706
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582479Reviewed-by: Junliang Yan <junyan@redhat.com>
Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79970}

drive-by: Add code comment macros
Change-Id: I1bded0f0e49f9e590cb7a8a5d86e26e8d9d5eea6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585530Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79969}

Bug: chromium:1315901
Change-Id: Ic44bfcae32aba202ba25c5f59fe579214a444584
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584117Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79968}

Change-Id: Ic65f0cccaba6cea2d441540b57689e2c68af3125
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585526Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79967}

This reverts commit a4216b7b.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/43174/overview

Original change's description:
> [osr] Extract extended OSR checks to BaselineOnStackReplacement builtin
>
> .. to reduce Sparkplug code size.
>
> Bug: v8:12161
> Change-Id: I4029a75dfa37f716c285ce27153c077a0a82a341
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3576119
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79962}

Bug: v8:12161
Change-Id: I382609d0b8cd951a3df5c9c834fe7071eb90faa5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584121
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Owners-Override: Tobias Tebbi <tebbi@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79966}

This reverts commit 38767476.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/43174/overview

Original change's description:
> [heap] Skip weak heap objects when sharedness doesn't match
>
> During marking, shared objects should not be marked when not
> marking the shared heap (i.e. when not doing a shared GC).
> Doing so is unsafe, as marking can race with sweeper threads
> sweeping the shared heap. This CL adds the missing check on
> weak object marking.
>
> Bug: v8:12687
> Change-Id: I1e0b8ba6b09bbcf665e5ff0f6242ed88f543c1fa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3583610
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79964}

Bug: v8:12687
Change-Id: If068d31f23a5280667dea1085b3076bb2107d07a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584119
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@google.com>
Owners-Override: Tobias Tebbi <tebbi@google.com>
Cr-Commit-Position: refs/heads/main@{#79965}

During marking, shared objects should not be marked when not
marking the shared heap (i.e. when not doing a shared GC).
Doing so is unsafe, as marking can race with sweeper threads
sweeping the shared heap. This CL adds the missing check on
weak object marking.

Bug: v8:12687
Change-Id: I1e0b8ba6b09bbcf665e5ff0f6242ed88f543c1fa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3583610Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79964}

Change-Id: I8bae34db4d1aa02516dcf4610f77d6e8edaa5775
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3581490Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79963}

.. to reduce Sparkplug code size.

Bug: v8:12161
Change-Id: I4029a75dfa37f716c285ce27153c077a0a82a341
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3576119Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79962}

Computing the length for variable-length TAs is a lot of code and was
regressing microbenchmarks.

Bug: v8:11111
Change-Id: Ia7c3c92bfb43938068aaf539b290f6a30b049c18
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3583898Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79961}

This reduces card granularity from 4096 to 512 bytes with the goal to
improve write barrier filtering.

Bug: chromium:1029379
Change-Id: I22e2a9c61ef4c36c3db65404370213d0a8048e08
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582393Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79960}

For a while, we shipped a version which writes version 13 data with
JSArrayBufferView flags, and then fixed version 13 to not include the
flags.

This CL adds a compatibility mode for parsing the the version 13
data which includes the flags, since it still occurs in the wild.

Bug: chromium:1314833,chromium:1284506
Change-Id: I96cc432c8574a40b11ec0037394feb1853515760
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3583982Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79959}

Bug: v8:12781
Change-Id: I4cf23035a7679efdb4830335b75d8616abfbbe08
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582385Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79958}

Tracer scopes are used in numerous places in src/heap to track time
spent during various phases of the garbage collection. Usually, they
are introduced with the TRACE_GC* family of macros, taking the scope
identifier as a parameter. At most call sites, the scope identifier is
known at compile time.

This CL inlines the constructor and destructor of GCTracer::Scope, in
order to enable the C++ compiler to properly optimize the introduction
of such scopes when the scope identifier is known at compile time,
using constant propagation. This is expected to have a performance
impact for short-lived and frequently used scopes, e.g., in incremental
marking and sweeping steps.

Change-Id: I6f1a2954a437de1fa6dab5e464c20c952d84ffd4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3581774Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79957}

This makes the installation sequence of WebAssembly.Tag slightly
shorter, slightly faster, slightly cleaner in corner-case semantics,
and slightly better documented.

To allow testing this code, Isolate::InstallConditionalFeatures is
exposed as d8.test.installConditionalFeatures().

Fixed: chromium:1314616
Change-Id: I44285e398b8797e0e7d2d8c782cecec3ba68a503
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582382
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79956}

NewSpace and PagedSpace both inherit from SpaceWithLinearArena and
implement allocation logic on top of it. The parts of the allocation
path that deal specifically with the linear allocation area are
equivalent (only minor syntactic differences between them).

This CL refactors the allocation from a linear allocation area out of
NewSpace and PagedSpace and moves it to SpaceWithLinearArea. This
eliminates code duplication and keeps everything generally still working
the same.

This is done as part of an effort to create a stable NewSpace interface
to allow introducing an alternative paged new space.

Bug: v8:12612
Change-Id: Ie24345a2d51f6e67ebe8a1d67e586038f7aec8de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3578547Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79955}

Change-Id: I11ffc3197e78a15e38978724da07e10b62857b3b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582392
Auto-Submit: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79954}