This is a reland of 0909dbe3.
Added missing V8_EXPORT_PRIVATE to AndroidLogStream.

TBR=mstarzinger@chromium.org

Original change's description:
> Introduce StdoutStream which prints to Android log or stdout
>
> The often used construct {OFStream(stdout)} does not work on Android.
> This CL introduces an {StdoutStream} which behaves exactly like
> {OFStream(stdout)} on non-android platforms, and redirects to the
> Android log on appropriate systems and configurations.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:7820
> Change-Id: Ia682fdf6d064e37c605c19b032f5a10b96ac825b
> Reviewed-on: https://chromium-review.googlesource.com/1088911
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53692}

Bug: v8:7820
Change-Id: I8164bad78a401dbe4246c9ffcacd050fe511ed58
Reviewed-on: https://chromium-review.googlesource.com/1100636Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53733}

This reverts commit 0909dbe3.

Reason for revert: Blocks roll:
https://chromium-review.googlesource.com/c/chromium/src/+/1099143

Original change's description:
> Introduce StdoutStream which prints to Android log or stdout
> 
> The often used construct {OFStream(stdout)} does not work on Android.
> This CL introduces an {StdoutStream} which behaves exactly like
> {OFStream(stdout)} on non-android platforms, and redirects to the
> Android log on appropriate systems and configurations.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: v8:7820
> Change-Id: Ia682fdf6d064e37c605c19b032f5a10b96ac825b
> Reviewed-on: https://chromium-review.googlesource.com/1088911
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53692}

TBR=mstarzinger@chromium.org,jarin@chromium.org,jgruber@chromium.org,clemensh@chromium.org,bmeurer@chromium.org

Change-Id: Iadadd9a0df10dca0fad647138a83db50148e864d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7820
Reviewed-on: https://chromium-review.googlesource.com/1100635Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53725}

Lift the declaration of the heap allocation request list and the method
which adds to the list up to AssemblerBase.

Change-Id: I099260425af8cb579144998c71c538f19ba00e65
Reviewed-on: https://chromium-review.googlesource.com/1098959Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53708}

This uses a WebAssembly runtime stub for the out-of-line {DoubleToI}
computation instead of a builtin specific to a certain Isolate. It is
another step towards making {WasmCode} independent of the Isolate.

R=clemensh@chromium.org
BUG=v8:7424

Change-Id: Ifdaa8e2511b67468d75e0e4aaf70010ced04a11a
Reviewed-on: https://chromium-review.googlesource.com/1098672
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53702}

Use DEFINE_FIELD_OFFSET_CONSTANTS to describe AllocationSite fields

Change-Id: I03ae84e1f4720da9da7e2a8a784f56fe6f155e18
Reviewed-on: https://chromium-review.googlesource.com/1095308Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53696}

Replace all uses of Deoptimizer::BailoutType and CodeEventListener::DeoptKind
with DeoptimizeKind from src/globals.h.

Change-Id: I5b9002583a69bc43d995cacc7619b018e5a70727
Reviewed-on: https://chromium-review.googlesource.com/1097331
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53695}

The often used construct {OFStream(stdout)} does not work on Android.
This CL introduces an {StdoutStream} which behaves exactly like
{OFStream(stdout)} on non-android platforms, and redirects to the
Android log on appropriate systems and configurations.

R=mstarzinger@chromium.org

Bug: v8:7820
Change-Id: Ia682fdf6d064e37c605c19b032f5a10b96ac825b
Reviewed-on: https://chromium-review.googlesource.com/1088911Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53692}

This is a necessary cleanup before porting Array[No,Single,N]ArgumentsConstructor
builtins to CSA.

Bug: v8:5269, v8:7703
Change-Id: I40a2dd83faab1f8c3c180d461ef62fa4d8578f5e
Reviewed-on: https://chromium-review.googlesource.com/1097079
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53671}

External references located within the isolate can be loaded as a
fixed offset from the root register. This avoids one load from memory
over the default indirect method (which reads from the external
reference table).

Bug: v8:6666
Change-Id: I569308c03f1a8c3feb1be7ceb072178b5be17b25
Reviewed-on: https://chromium-review.googlesource.com/1092739
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53661}

This new scope allows to avoid emitting calls to {Builtin::kAbort} in
debug code when requested, but still trap when the debug code fails. It
can be used to keep generated code independent of builtins.

R=jgruber@chromium.org

Change-Id: I77864a1a10ec5b52bccfd76981ab5f4ff33bc727
Reviewed-on: https://chromium-review.googlesource.com/1095179
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53635}

This class can contain members and functions common across all
platforms.

Bug: v8:6666
Change-Id: I8f232f806457164a2401f74c7140fd035ad05096
Reviewed-on: https://chromium-review.googlesource.com/1086940
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53609}

This makes sure that reloc entries with WASM_STUB_CALL mode can be
shared within the constant pool. Call sites to such stubs never need to
be patched individually and absolute addresses of such call targets can
be shared when they are put into constant pools.

This applies to ARM, ARM64 and PPC architectures only.

R=clemensh@chromium.org
BUG=chromium:850413

Change-Id: I657248f61f122f1a3d6d30ebd14326df45f67540
Reviewed-on: https://chromium-review.googlesource.com/1091055Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53603}

This CL introduces CSA::TailCallJSCode() for tail calling code objects
with JSCall linkage.

Bug: v8:5269, v8:7703
Change-Id: I97370dc4355dc658a9cd62166efcbe7f03d6daca
Reviewed-on: https://chromium-review.googlesource.com/1087459
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53590}

Struct fields should not end in an underscore according to the style
guide.

Drive-by: Add {TurboAssembler} constructor which receives an
{IsolateData} directly, to allow creating a {TurboAssembler} in a
background thread.

R=mstarzinger@chromium.org

Change-Id: I32800476690f4c8619059519b7d27b06f5d4be95
Reviewed-on: https://chromium-review.googlesource.com/1090278
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53582}

This makes all runtime calls compiled by Liftoff load the respective
CEntry builtin from the instance object instead of embedding it into the
instruction stream. Another step towards making the code independent of
the originating Isolate.

As a drive-by this also changes one implicit runtime call in the stack
check in the TurboFan backend in a similar fashion.

R=clemensh@chromium.org
BUG=v8:7424

Change-Id: Ifab5995aa95250d6fae60ef5debb98aee2b6fc0c
Reviewed-on: https://chromium-review.googlesource.com/1089067
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53578}

The builtins table is an array of pointers to builtin code objects. It
used to be located within the Builtins class, which itself was part of
the Isolate.

To enable faster isolate-independent access to builtin code objects,
this CL moves the builtins table into the heap, at a constant known
offset from the roots table. With this change, builtins can be accessed
through the root pointer with a single instruction:

 mov reg, [kRootPointer, <offset to builtin>]

TurboAssembler::LookupConstant is also extended in this CL to
potentially shortcut the slow-ish constants table lookup: root
constants are loaded through the root list, and builtin constants
through the builtins table.

Bug: v8:6666
Change-Id: I8e83c2a8783c01ebece89483274f42ab4c8872f2
Reviewed-on: https://chromium-review.googlesource.com/1075275
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53528}

This CL introduces a new gn argument: v8_enable_pointer_compression which is
false by default. All the changes done in this CL are made under this flag.

Upper half-word of a Smi word must be properly sign-extended according to the
sign of the lower-half containing the actual Smi value.

Bug: v8:7703
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2b52ab49cd18c7c613130705de445fef44c30ac5
Reviewed-on: https://chromium-review.googlesource.com/1061175Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53519}

R=clemensh@chromium.org

Change-Id: I0ea2e8db0e2b52a2edbd485d0cd52e94eea84d9e
Reviewed-on: https://chromium-review.googlesource.com/1084487
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53499}

This makes stack checks in WasmCode independent of the underlying
Isolate by loading the limit address from the WasmInstanceObject instead
of embedding it into the instruction stream. It hence removes the last
use of the Isolate field from WasmGraphBuilder.

Additionally this introduces the notion of a "runtime stub" which
represents stub code global to the NativeModule that can be directly
called from each WasmCode in the same module. These stubs can act as
trampolines via which Isolate-independent WasmCode can enter other V8
builtins or runtime functions that remain Isolate-dependent. They will
eventually replace the current "trampoline" in a NativeModule.

R=titzer@chromium.org
BUG=v8:7424

Change-Id: Ie1f5582ee656b1ab7716ea06316d6e21a0268e74
Reviewed-on: https://chromium-review.googlesource.com/1078732
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53487}

Change-Id: I21f88bffb9fcc08c5b4616d77f90565714124082
Reviewed-on: https://chromium-review.googlesource.com/1076607Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/master@{#53486}

Pass heap directly into RelocInfo::set_target_object and its calling
functions to avoid HeapObject::GetHeap().

Bug: v8:7786
Change-Id: I516b8b2d80a86ba5aba70160290e78354bb9a7b8
Reviewed-on: https://chromium-review.googlesource.com/1080548Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53469}

Compress the parameter count (and function length) stored in
SharedFunctionInfo to a uint16_t. This limits us to 2^16 - 1 parameters
per function, minus one for the "don't adapt arguments" sentinel value,
which is one fewer than Code::kMaxArguments was already. Anyway, 65534
arguments should be enough for anyone!

This drops SFI size by 4 bytes.

Bug: chromium:818642
Change-Id: I126bfb24453dcdc5087a104d3a12cf195a56fa9f
Reviewed-on: https://chromium-review.googlesource.com/1076627
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53447}

The MathPowInternal builtin is now only called directly from the
code-generator. Also, this patch takes the opportunity to cleanup the builtin
for arm and arm64 a little.

Change-Id: If53edcecd42b227ef74ee817bc5d7fbbcea8b0e2
Reviewed-on: https://chromium-review.googlesource.com/1076127Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#53442}

The code slot of internal frames seems to be basically unused.
As always, there are exceptions:

1. In elements.cc we check whether the current code object is the apply
builtin. We can use a heap lookup through the frame's pc instead.
2. In isolate.cc we store a reference to the frame's code object to try
and pack it into the minidump. This can safely be skipped.

Remaining use-sites in frames.cc all skip INTERNAL frames by using the
JavaScriptFrameIterator.

Bug: v8:6666
Change-Id: I93c5035812838bbae5109415450915db12497b9c
Reviewed-on: https://chromium-review.googlesource.com/1075047
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53409}

This makes the WasmCompileLazy builtin push a new WASM_COMPILE_LAZY
frame type. We can thereby remove the workaround to return a relocated
instance from the underlying runtime function. It also removes the last
remaining embedded code objects from {WasmCode} objects.

R=titzer@chromium.org

Change-Id: Ic9c3f59339e8d7bed53ea0ed70ef50dfe640f1c6
Reviewed-on: https://chromium-review.googlesource.com/1073455
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53405}

The result of SmiUntag is a sign-extended word-size value.

Bug: v8:7703
Change-Id: I85dc87b541cab78286e47e2147c16c6a0939f509
Reviewed-on: https://chromium-review.googlesource.com/1073232Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53389}

Bug: v8:6666
Change-Id: Ibb5b8b2012041e908ac7f109abf0a724b12c0e72
Reviewed-on: https://chromium-review.googlesource.com/1073447Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53364}

Its contents are now inlined into the one remaining call site.

Bug: v8:6666
Change-Id: Icfcf89013506fec880ffd84eaa88b91e818e28c0
Reviewed-on: https://chromium-review.googlesource.com/1073311Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53363}

Calls from embedded builtins to stubs are expensive due to the
indirection through the builtins constants table. This moves
the InternalArrayConstructorStub to a builtin.

Bug: v8:6666
Change-Id: I8cd801bd9218ca9ef0853ed99c7a69090af5c9f9
Reviewed-on: https://chromium-review.googlesource.com/1072608Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53360}

Calls from embedded builtins to stubs are expensive due to the
indirection through the builtins constants table. This moves
the ArrayConstructorStub to a builtin.

Bug: v8:6666
Change-Id: Iff4bff99cd911a7f5f138819801c7812b75ea969
Reviewed-on: https://chromium-review.googlesource.com/1071519
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53357}

Calls from embedded builtins to stubs are expensive due to the
indirection through the builtins constants table. This moves
the ArrayNArgumentsConstructorStub to a builtin.

Bug: v8:6666
Change-Id: Ied303334874251415a9057abf612d76dd8330aa6
Reviewed-on: https://chromium-review.googlesource.com/1071450
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53356}

Calls from embedded builtins to stubs are expensive due to the
indirection through the builtins constants table. This moves
CallApiGetter and the 0/1 argument case of CallApiCallback to
builtins.

Bug: v8:6666
Change-Id: I49c4917253f790a3b947f42c50d6308a1ab99d91
Reviewed-on: https://chromium-review.googlesource.com/1070980Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53355}

At runtime, calls to embedded builtins do not need to take the
indirection through the off-heap trampoline. We can simply inline the
trampoline instead.

Bug: v8:6666
Change-Id: Idb7d504fdfee173a0b134fbc74bd5dc6d09629cb
Reviewed-on: https://chromium-review.googlesource.com/1068742Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53354}

This requires changing the way stubs and builtins are encoded in tags, as for
arm64 we only have 26 bits to encode a PC-relative offset. With the previous
encoding scheme the builtin ids were shifted by 16 bits and ended up exceeding
this range.

Change-Id: I0f396390a622ea67b890d2dd47ca12e00092e204
Reviewed-on: https://chromium-review.googlesource.com/1059209
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53262}

Remove cp from cache register list

Bug: v8:6600
Change-Id: If17d4558e4f89dd620c757e2a8288658f1489435
Reviewed-on: https://chromium-review.googlesource.com/1047645Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Vincent Belliard <vincent.belliard@arm.com>
Cr-Commit-Position: refs/heads/master@{#53114}

Stubs and builtins are very similar. The main differences are that
stubs can be parameterized and may be generated at runtime, whereas
builtins are generated at mksnapshot-time and shipped with the snapshot
(or embedded into the binary).

My main motivation for these conversions is that we can generate
faster calls and jumps to (embedded) builtins callees from (embedded)
builtin callers. Instead of going through the builtins constants table
indirection, we can simply do a pc-relative call/jump.

This also unlocks other refactorings, e.g. removal of
CallRuntimeDelayed.

TBR=mlippautz@chromium.org

Bug: v8:6666
Change-Id: I4cd63477f19a330ec70bbf20e2af8a42fb05fabb
Reviewed-on: https://chromium-review.googlesource.com/1044245Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53027}

On arm64, we had {RegisterBase::bit} (defined in assembler.h) and
{CPURegister::bit} (defined in assembler-arm.h). {CPURegister} inherits
from {RegisterBase}. The two methods methods have different
behaviour on the special {no_reg}, which is only relied on in very few
places.
This CL fixes these places to avoid the use of {no_reg}, and removes
the overwritten method.

R=mstarzinger@chromium.org
CC=​rodolph.perfetta@arm.com

Change-Id: I859cc0d4ffc48fae018ee262f3e5403774db87a8
Reviewed-on: https://chromium-review.googlesource.com/1042188Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Rodolph Perfetta <rodolph.perfetta%arm.com@gtempaccount.com>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52977}

Define and use TurboAssembler::AssertUnreachable

Bug: v8:6600
Change-Id: I6901896ea4fd7e0fe24dd76a1afbb409a24a2994
Reviewed-on: https://chromium-review.googlesource.com/1040766
Commit-Queue: Vincent Belliard <vincent.belliard@arm.com>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52963}

There are likely cleanups that can be done after this CL:
- context-related functions in the interpreter and compiler take ScopeInfo as
well as ScopeType and slot-count as input. The latter 2 should be directly
derived from the former. We should be able to drop FunctionContextParameters.
- ContextExtension is probably not needed anymore, since we now always have the
correct scope_info directly in the SCOPE_INFO_INDEX slot.

Bug: v8:7066
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ie1f6134c686a9f2183e54730d9cdd598a9e5ab67
Reviewed-on: https://chromium-review.googlesource.com/785151
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52952}

With the exception of the InterpreterEntryTrampoline, all builtins are
now isolate-independent and can be embedded into the binary.

This CL updates the corresponding list and also contains a few smallish
tweaks to support having these builtins off the heap:

* wasm: copy the off-heap builtin, not its trampoline.
* Code::contains: support off-heap builtins.
* JSFunction::is_compiled: compare builtin index instead of identity
  (this is relevant during mksnapshot when we transition from the
  on-heap builtin to its off-heap representation + the trampoline).
* Remove old DCHECKs.
* A few tweaks in macro-assembler ports that have snuck in recently.

Bug: v8:6666
Change-Id: Iabf5b47ade3826a4da35b6b75a4e61614f0158b0
Reviewed-on: https://chromium-review.googlesource.com/1032777
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52935}