This CL adds a test where we evaluate a variable that is context
allocated (through the use of 'eval'), but not used by the closure.
This did not work with the previous whitelist approach, but works now
with the new blacklist approach (see https://crrev.com/c/1795354)

Bug: v8:9482
Change-Id: I1e453dec0b624bf7e0312100e119d86c9c481ba9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796543
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63671}

From verwaest@ work on the Json's parser, we know that removing the allocation type argument when creating objects using the factory class increases performance. This will also allow us to optimise these functions in a latter CL.

Change-Id: If78f62a63fe41453f4def8bea77b6eddc2ab7f36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792168Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@google.com>
Cr-Commit-Position: refs/heads/master@{#63670}

functionality is:
If rhs_is_smi is true, we are sure that rhs is a Smi.
If rhs_is_smi is false, rhs might or not be a Smi.

Therefore, rhs_known_smi fits better.

Change-Id: Ie6dd0446ef85ba0730189e2012a21c24d1731b74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796551Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63669}

Notry: true
Notreechecks: true
Change-Id: Ie15006dfd812a26486c7e2a5d09c713b92456ebe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796555
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63668}

Bug: v8:6949, v8:9396
Change-Id: If9fa66de4aecfe72c30ac81c563216fd5e057eb3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792903
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63667}

This CL changes how variables are resolved during debug evaluate.
We now re-parse the whole script when creating a ScopeIterator.
This gives us accurate scope information for all parent scopes of the
closure in which we stopped. Using this information, we build
blacklists of stack-allocated variables. Each context on the chain
in between the closure context up to the original native context is
wrapped in a debug-evaluate context with such a blacklist attached.
Variable lookup for debug-evalute contexts then works as follows:

  1) Look up in the materialized stack variables (stayed the same).
  2) Check the blacklist to find out whether to abort further lookup.
  3) Look up in the original context.

Steps 1-3 is repeated for each debug-evaluate context, since they
mirror the original context chain.

R=ulan@chromium.org, yangguo@chromium.org

Change-Id: Ied8e5786772c70566da9627ee3b7eff066fba2b4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795354Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63666}

Fix build errors introduced by

commit af063685

and not fully fixed by

commit db3cc4a2

Change-Id: Ifdc92f5d55061670127999058d374914985df762
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795643Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Mu Tao <pamilty@gmail.com>
Auto-Submit: Mu Tao <pamilty@gmail.com>
Cr-Commit-Position: refs/heads/master@{#63665}

Port ab0f9710

Original Commit Message:

    - Eliminates non-const reference parameters in test/cctest.

Change-Id: I038314e0cc2b28e70e7ebcbd2d076ef62893285e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795646
Commit-Queue: Mu Tao <pamilty@gmail.com>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Auto-Submit: Mu Tao <pamilty@gmail.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63664}

Change-Id: I14103a02fa96f66f220559780e9d8ee116ff3e10
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796548Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63663}

This reverts commit d72ae9ab.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Android%20Arm%20-%20builder/27990

Original change's description:
> Update V8 DEPS.
> 
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/2d9fa32..0f7adef
> 
> Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/74cfb57..cd73d21
> 
> Rolling v8/buildtools/linux64: git_revision:152c5144ceed9592c20f0c8fd55769646077569b..git_revision:ad9e442d92dcd9ee73a557428cfc336b55cbd533
> 
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/884c81e..050abd8
> 
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/e5641be..d207f49
> 
> Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3a45039..33a0d4f
> 
> TBR=machenbach@chromium.org,tmrts@chromium.org
> 
> Change-Id: I465ba35dd9e70e02c684687b656c34c5bd53ff23
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796705
> Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/master@{#63661}

TBR=machenbach@chromium.org,v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com,tmrts@chromium.org

Change-Id: I0ffabeb2df5a2949adf5ebb319bec20513a04c55
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796545Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63662}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/2d9fa32..0f7adef

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/74cfb57..cd73d21

Rolling v8/buildtools/linux64: git_revision:152c5144ceed9592c20f0c8fd55769646077569b..git_revision:ad9e442d92dcd9ee73a557428cfc336b55cbd533

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/884c81e..050abd8

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/e5641be..d207f49

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3a45039..33a0d4f

TBR=machenbach@chromium.org,tmrts@chromium.org

Change-Id: I465ba35dd9e70e02c684687b656c34c5bd53ff23
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796705Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#63661}

Bug: chromium:997401
Change-Id: I7a78f4ad1fd05ab2bb2dbcd343060b2647aef4e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1771954
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63660}

Reuse the existing builtin and extension infrastructure to provide a
garbage collection mechanism that allows for asynchronous execution.

On --expose-gc, this changes the gc call to parse parameters the
following:
(1) Parse options when encountering an options object with known properties.
(2) No parameters is parsed as
    {type: 'major', execution: 'sync'}.
(3) Truthy parameter that is not setting options is parsed as
    {type: 'minor', execution: 'sync'}.

(2) and (3) preserve backwards compatibility for existing callers as this may be
used widely across various test and benchmarking infrastructures.

Valid options:
- type: 'major' or 'minor' for full GC and Scavenge, respectively.
- execution: 'sync' or 'async' for synchronous and asynchronous
  execution respectively.

Returns a Promise that resolves when GC is done when asynchronous execution
is requested, and undefined otherwise.

Note: This is implemented as builtin to avoid having any stack at all. This
information is also passed to the embedder to allow skipping stack scanning.

Change-Id: Ie5c9b6f0d55238abfeb9051ffa1837501d474934
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1793143
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63659}

Bug: v8:6949, v8:9396
Change-Id: I4c9382079190379661a26fbe6e1f4f6040a56d08
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792902
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63658}

Bug: v8:9553
Change-Id: I376d4bd3d1554e1ed0bdeea79c47bd2a45e643d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795886
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63657}

Bug: v8:8976
Change-Id: I281dc72dcdf03a1d05fdc632c9e9228d62bd85b8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1783099
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63656}

Port f72c844a

Original Commit Message:

    Port f5ab7d38

    Port 65f3861e

    Original Commit Message:

        In a new test suite: "wasm-api-tests", using a new binary "wasm_api_tests",
        powered by gtest/gmock (like unittests).
        Also fix a bunch of issues that these tests uncovered, mostly to ensure
        that the stack is walkable.

R=miladfar@ca.ibm.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: Id52e771fee79210d6c295cecf56a322657cf2b8f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795864
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#63655}

This reverts commit d7d25d2a.

Reason for revert: crashes win32-debug: https://ci.chromium.org/p/v8/builders/ci/V8%20Win32%20-%20debug/21970

Original change's description:
> [wasm] Patch jump tables in all code spaces
> 
> If there are multiple code spaces, make sure to patch the jump tables
> in all of them.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: v8:9477
> Change-Id: I2ec3d3de913b99623fd310004555337329588da0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1789289
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63651}

TBR=mstarzinger@chromium.org,clemensh@chromium.org

Change-Id: I4bdeb7394ebf002e3a84fececb0defba8bc9065d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9477
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1796064Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63654}

This reverts commit 05d83a0e.

Reason for revert: We passed the M78 branch point and should proceed testing
the new elements kinds support.

Original change's description:
> Temporarily disable frozen/sealed elements kinds
>
> ... to prepare for merging this back to stable channel.
>
> Bug: chromium:992914
> Change-Id: Icbb257b5c02417d9222e60346575567360376264
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762021
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Auto-Submit: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63277}

TBR=leszeks@chromium.org,ishell@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: chromium:992914, v8:996176
Change-Id: Iaa36c140c0c9c72ca0e58f5c3e7d4cad67027085
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795342Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63653}

Rather than duplicating code paths for in- and out-of-object stores,
have one code path which checks whether it needs to load the property
store (and change the storage location to the HeapNumber value for
unboxed doubles).

As a drive-by, change the representation dispatch into a switch, and
inline the representation checks into that switch, to make explicit
what checks for what and which paths transform the value. Also, TNodify
some of the surrounding functions.

Change-Id: Ia1bf698b4cec3ffce9aaa5732cda2e3be9efd8e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795345Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63652}

If there are multiple code spaces, make sure to patch the jump tables
in all of them.

R=mstarzinger@chromium.org

Bug: v8:9477
Change-Id: I2ec3d3de913b99623fd310004555337329588da0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1789289Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63651}

- Eliminates non-const reference parameters in src/objects.

Bug: v8:9429
Change-Id: Ic39a59d54bda26c622db29f07143055c3cc6c7a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1794683Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63650}

NOTRY=true
TBR=mslekova@chromium.org

Change-Id: I3793426aaebd400ac93015b85ef11db5aecef52f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795357Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63649}

This CL changes how we handle the case when both --regexp-tier-up and
--regexp-interpret-all flags are on. Previously, we had a CHECK that would
crash if both flags were turned on, now we turn off the tier-up flag and
print a warning message.

Change-Id: I902a59cac9aaf316be05ab2acaee233aa32e023d
Bug: chromium:1002242
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795353Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Ana Pesko <anapesko@google.com>
Cr-Commit-Position: refs/heads/master@{#63648}

After https://crrev.com/c/1793065 the test should be fast enough to
execute it everywhere.

R=mslekova@chromium.org

Bug: v8:9696, v8:7783
Change-Id: I2485d703d6e973217eddde2f2814e31f7fcd8a61
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795343
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63647}

Bug: v8:9463
Change-Id: I49d74c5103f4ee2e09114a609cffe82c838655dc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792782Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Joshua Litt <joshualitt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63646}

An upcoming CL will remove the COLLECT_NON_LOCALS support of the
ScopeIterator. The DebugStackTraceIterator uses the list of non-locals
to restore the receiver for arrow functions.

This CL extracts the relevant logic into a small helper and calls
it directly.

Change-Id: Ia396fd599e41ca65810497d2f5228619cfdf7cc4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795347Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63645}

This CL is necessary for disabling write-barriers that involoves
referencing pages via address arithmetic, which is required from
third-party heap implementation.

Change-Id: I1d3f572d48015e5c8cf691b2dc71a32834621c2f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781008Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63644}

- Eliminates non-const reference parameters in test/unittests.

Bug: v8:9429
Change-Id: Ia7b41482811183324a62859d27fc263e4032219a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1794802Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63643}

Since we switched to C++14 now, we can use {std::make_unique} instead
of our own {base::make_unique} from {template-utils.h}.

R=mstarzinger@chromium.org, yangguo@chromium.org

Bug: v8:9687
No-Try: true
Change-Id: I660eb30038bbb079cee93c7861cd87ccd134f01b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1789300
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63642}

This is meant to check the performance impact of:
https://chromium-review.googlesource.com/c/v8/v8/+/1776085/3

R=neis@chromium.org

Bug: v8:9088
Change-Id: I8aad5272c1427b8bcaca02bdd0e51bf2779f7451
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781054Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63641}

based on dicussion at
docs.google.com/document/d/1UzCOai9H07fYcSaSqvF_H7BS2-sF5q91A4r9O1mRnHc/

Bug: v8:9305
Change-Id: I7464d4267b6465cc02bc27dffb602c8871d846f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1696285
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63640}

We don't handle all cases for stores to typed arrays in the builtins
related to storing a property. Bailout to runtime when storing into
a typed array if the property is not found on the object.

Bug: chromium:996161
Change-Id: I684c7c4f526b15cdfb5bfe3fd23218910486a59e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1789396
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63639}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/6ff11c8..2d9fa32

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/fcd6915..884c81e

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/efce0d1..e5641be

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3f05f65..3a45039

TBR=machenbach@chromium.org,tmrts@chromium.org

Change-Id: I99a0be4d07f3e390d44aa11771d3c0dfc784f51a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1794125Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63638}

No invalidation of slots necessary for String::MakeThin. ThinString
only stores tagged value, so it can't store an untagged value in a
recorded slot. CreateFillerObjectAt takes care of slots in case of
right-trimming objects.

Bug: v8:9454
Change-Id: Id16e8ebceb334a845bdbf77282fbeb2069efce7d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1794682Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63637}

- Eliminates non-const reference parameters in test/cctest.

Bug: v8:9429
Change-Id: I9b3f06d6dda447285673269819bdb405ebac2187
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1793064Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63636}

When analyzing functions scopes with the script_scope as parent, don't
skip migrating unresolved variables upwards if we could still be inside
an arrow head, which means accesses to those variables will be
correctly context allocated.

Bug: v8:8510, chromium:1000094
Change-Id: I684f2f8bc692de420203990f93e5c943b5b769c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1789705Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63635}

Port af063685

R=bbudge@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: Iccbb0a968cd8490cfa1191ea8adb31007739b297
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1790544Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63634}

Fix build errors introduced by

commit af063685

Change-Id: I467ea39f020d07bed00875f69152191b94029dd1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1794327
Auto-Submit: Mu Tao <pamilty@gmail.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63633}

Port 9f01d5c1

Original Commit Message:

    Stack overflow checks are typically implemented as part of the TurboFan
    graph of a function. This means that the stack check code is executed
    after frame construction. When a frame is too big, though, there may not
    be enough space on the stack anymore to throw the stack overflow
    exception after frame construction. With this CL we do an additional
    stack check before frame construction for functions with big frames.

    As discussed offline with mstarzinger, I do this change currently only
    for WebAssembly.

    This CL contains only the changes for arm. I will do the other platforms
    in separate CLs

R=xwafish@gmail.com

Change-Id: I46c6dd8fac1385e5da13e03cfffd9c640a7c2c57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792582
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Auto-Submit: Mu Tao <pamilty@gmail.com>
Cr-Commit-Position: refs/heads/master@{#63632}