Revert of Revert of [es6] implement Array.prototype.copyWithin() (patchset #1 id:1 of https://codereview.chromium.org/1084183004/)

Reason for revert:
Check if this CL fails independently of https://chromium.googlesource.com/v8/v8/+/580d66bcda66220d2f3062ac58daf925436df74c

Original issue's description:
> Revert of [es6] implement Array.prototype.copyWithin() (patchset #7 id:120001 of https://codereview.chromium.org/376623004/)
>
> Reason for revert:
> [Sheriff] This causes test failures on mac gc stress:
> http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1027
>
> Original issue's description:
> > [es6] implement Array.prototype.copyWithin()
> >
> > https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin
> >
> > BUG=v8:4039
> > R=adamk@chromium.org
> > LOG=N
>
> TBR=dslomov@chromium.org,rossberg@chromium.org,adamk@chromium.org,caitpotter88@gmail.com
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4039
>
> Committed: https://crrev.com/9283fc89710e59445bdc4479454fba97ab9ebdd7
> Cr-Commit-Position: refs/heads/master@{#27984}

TBR=dslomov@chromium.org,rossberg@chromium.org,adamk@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4039

Review URL: https://codereview.chromium.org/1072193005

Cr-Commit-Position: refs/heads/master@{#27997}

[mjsunit] Import asm.js test case for poppler.

R=hablich@chromium.org

Review URL: https://codereview.chromium.org/1105483002

Cr-Commit-Position: refs/heads/master@{#27996}

Remove the weak list of views from array buffers

Instead, views have to check their array buffer for whether
it's neutered or not.

BUG=v8:3996
R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1094863002

Cr-Commit-Position: refs/heads/master@{#27995}

add StdGlobalValueMap

BUG=

Review URL: https://codereview.chromium.org/1104463002

Cr-Commit-Position: refs/heads/master@{#27994}

Protect the emptiness of Array prototype elements with a PropertyCell.

Not just emptiness, but also a particular structure.

BUG=v8:4044
LOG=N

Review URL: https://codereview.chromium.org/1092043002

Cr-Commit-Position: refs/heads/master@{#27993}

[mjsunit] Skip newly added tests under asan.

TBR=svenpanne@chromium.org, titzer@chromium.org, bmeurer@chromium.org,
NOTRY=true
NOTREECHECKS=true

Review URL: https://codereview.chromium.org/1101653002

Cr-Commit-Position: refs/heads/master@{#27992}

Revert of [strong] checking of this & super in constructors (patchset #7 id:110001 of https://codereview.chromium.org/1024063002/)

Reason for revert:
[Sheriff] Breaks mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1024

Original issue's description:
> [strong] checking of this & super in constructors
>
> R=dslomov@chromium.org, marja@chromium.org
> BUG=v8:3956
> LOG=N
>
> Enforces for constructors that
> - the only use of 'super' is the super constructor call
> - the only use of 'this' is a property assignment
> - both of these must happen at the top-level of the body
> - 'this' may only be assigned after the 'super' call
> - 'return' may only be used after the last assignment to 'this'
>
> Not yet working for arrow functions (there might be deeper bugs with those).
>
> Committed: https://crrev.com/580d66bcda66220d2f3062ac58daf925436df74c
> Cr-Commit-Position: refs/heads/master@{#27977}

TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956

Review URL: https://codereview.chromium.org/1105453002

Cr-Commit-Position: refs/heads/master@{#27991}

Revert of [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions) (patchset #7 id:140001 of https://codereview.chromium.org/1011823003/)

Reason for revert:
[Sheriff] breaks mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1029

Original issue's description:
> [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions)
>
> BUG=v8:3965, v8:3966
> R=arv@chromium.org
> LOG=N
>
> Committed: https://crrev.com/b09c048f693d280052ac63c7d6b3baf27b3bf271
> Cr-Commit-Position: refs/heads/master@{#27985}

TBR=arv@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3965, v8:3966

Review URL: https://codereview.chromium.org/1103473003

Cr-Commit-Position: refs/heads/master@{#27990}

[mjsunit] Add custom tests based on SQLite 3.8.9.

Also adjust the test runner to remove --always-opt for FAST_VARIANTS.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1056423004

Cr-Commit-Position: refs/heads/master@{#27989}

Compact weak fixed arrays before serializing.

R=ulan@chromium.org
BUG=v8:4050
LOG=N

Review URL: https://codereview.chromium.org/1099103003

Cr-Commit-Position: refs/heads/master@{#27988}

Revert "[test] Initial import of an emscripten test suite."

This reverts commit bb346227dbff1a2281032878b21d4a4164d87480 because it
adds a lot of overhead without significantly increasing our test
coverage. We need a different approach to deal with this.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1099813007

Cr-Commit-Position: refs/heads/master@{#27987}

Update V8 DEPS.

Rolling v8/tools/clang to 442f528de2269272de9610e9c7186047ce4aaadb

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1065783004

Cr-Commit-Position: refs/heads/master@{#27986}

[es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions)

BUG=v8:3965, v8:3966
R=arv@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1011823003

Cr-Commit-Position: refs/heads/master@{#27985}

Revert of [es6] implement Array.prototype.copyWithin() (patchset #7 id:120001 of https://codereview.chromium.org/376623004/)

Reason for revert:
[Sheriff] This causes test failures on mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1027

Original issue's description:
> [es6] implement Array.prototype.copyWithin()
>
> https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin
>
> BUG=v8:4039
> R=adamk@chromium.org
> LOG=N

TBR=dslomov@chromium.org,rossberg@chromium.org,adamk@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4039

Review URL: https://codereview.chromium.org/1084183004

Cr-Commit-Position: refs/heads/master@{#27984}

[es6] implement Array.prototype.copyWithin()

https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin

BUG=v8:4039
R=adamk@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/376623004

Cr-Commit-Position: refs/heads/master@{#27983}

Revert of track global accesses to constant types (patchset #15 id:280001 of https://codereview.chromium.org/1062163005/)

Reason for revert:
[Sheriff] Speculative revert for maybe breaking layout tests, e.g.
http://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2032/builds/2589

Will reland if it doesn't help.

Original issue's description:
> track global accesses to constant types
>
> BUG=

TBR=verwaest@chromium.org,dcarney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1094313003

Cr-Commit-Position: refs/heads/master@{#27982}

Revert of fix bad rebase in r27966 (patchset #1 id:1 of https://codereview.chromium.org/1083923005/)

Reason for revert:
Needed to revert https://chromium.googlesource.com/v8/v8/+/7bcc3d10835105fadc8ecf42a877dec479f0f80d

Original issue's description:
> fix bad rebase in r27966
>
> TBR=verwaest@chromium.org
>
> BUG=

TBR=verwaest@chromium.org,dcarney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1093043003

Cr-Commit-Position: refs/heads/master@{#27981}

[es6] stage harmony_spreadcalls

BUG=v8:3018
R=dslomov@chromium.org, arv@chromium.org, rossberg@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1096363002

Cr-Commit-Position: refs/heads/master@{#27980}

[turbofan] --turbo implies --turbo-type-feedback and disable fast properties.

Note: can't be landed until LoadProperty => LoadNamed is fixed.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1101473004

Cr-Commit-Position: refs/heads/master@{#27979}

[es6] stage harmony_rest_parameters

BUG=v8:2159
R=arv@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1099813005

Cr-Commit-Position: refs/heads/master@{#27978}

[strong] checking of this & super in constructors

R=dslomov@chromium.org, marja@chromium.org
BUG=v8:3956
LOG=N

Enforces for constructors that
- the only use of 'super' is the super constructor call
- the only use of 'this' is a property assignment
- both of these must happen at the top-level of the body
- 'this' may only be assigned after the 'super' call
- 'return' may only be used after the last assignment to 'this'

Not yet working for arrow functions (there might be deeper bugs with those).

Review URL: https://codereview.chromium.org/1024063002

Cr-Commit-Position: refs/heads/master@{#27977}

VectorICs: support converting keyed loads into named loads in crankshaft.

This was a TODO for a while in crankshaft, now ready to address.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1093413002

Cr-Commit-Position: refs/heads/master@{#27976}

Revert of Reland "LayoutDescriptor should inherit from JSTypedArray" (patchset #3 id:40001 of https://codereview.chromium.org/1094333002/)

Reason for revert:
Breaks gbemu

Original issue's description:
> Reland "LayoutDescriptor should inherit from JSTypedArray"
>
> Original issue's description:
> > LayoutDescriptor should inherit from JSTypedArray
> >
> > It can't just inherit from a FixedTypedArray-like type, as we soon
> > assume that a FixedTypedArray-like type is always held by an
> > ArrayBufferView-like type
> >
> > BUG=v8:3996
> > R=ishell@chromium.org,verwaest@chromium.org
> > LOG=n
>
> BUG=v8:3996
> R=ishell@chromium.org,verwaest@chromium.org
> LOG=n

TBR=ishell@chromium.org,verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3996

Review URL: https://codereview.chromium.org/1080403004

Cr-Commit-Position: refs/heads/master@{#27975}

[turbofan] Use FastCloneShallow[Array|Object]Stub if possible.

This allows the JSIntrinsicLowering to optimize the cloning of literal
boilerplate objects using either the FastCloneShallowArrayStub or the
FastCloneShallowObjectStub when applicable.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1097963002

Cr-Commit-Position: refs/heads/master@{#27974}

Reland "LayoutDescriptor should inherit from JSTypedArray"

Original issue's description:
> LayoutDescriptor should inherit from JSTypedArray
>
> It can't just inherit from a FixedTypedArray-like type, as we soon
> assume that a FixedTypedArray-like type is always held by an
> ArrayBufferView-like type
>
> BUG=v8:3996
> R=ishell@chromium.org,verwaest@chromium.org
> LOG=n

BUG=v8:3996
R=ishell@chromium.org,verwaest@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1094333002

Cr-Commit-Position: refs/heads/master@{#27973}

[turbofan] Fix reduction of LoadProperty/StoreProperty to LoadNamed/StoreNamed.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1095313002

Cr-Commit-Position: refs/heads/master@{#27972}

Allow eval/arguments in arrow functions

Originally landed in https://codereview.chromium.org/1061983004;
re-landing after re-landing formal parameter parsing refactors.

R=marja@chromium.org
BUG=v8:4020
LOG=N

Review URL: https://codereview.chromium.org/1077153005

Cr-Commit-Position: refs/heads/master@{#27971}

fix bad rebase in r27966

TBR=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1083923005

Cr-Commit-Position: refs/heads/master@{#27970}

Wrap promise implementation in a function.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1054763003

Cr-Commit-Position: refs/heads/master@{#27969}

Revert of LayoutDescriptor should inherit from JSTypedArray (patchset #1 id:1 of https://codereview.chromium.org/1084793004/)

Reason for revert:
breaks mjsunit on debug bots

Original issue's description:
> LayoutDescriptor should inherit from JSTypedArray
>
> It can't just inherit from a FixedTypedArray-like type, as we soon
> assume that a FixedTypedArray-like type is always held by an
> ArrayBufferView-like type
>
> BUG=v8:3996
> R=ishell@chromium.org,verwaest@chromium.org
> LOG=n

TBR=ishell@chromium.org,verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3996

Review URL: https://codereview.chromium.org/1073053006

Cr-Commit-Position: refs/heads/master@{#27968}

Reintroduce %GetRootNaN to fix MIPS.

R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/1101503003

Cr-Commit-Position: refs/heads/master@{#27967}

track global accesses to constant types

BUG=

Review URL: https://codereview.chromium.org/1062163005

Cr-Commit-Position: refs/heads/master@{#27966}

Drop unused field from PrototypeInfo

Review URL: https://codereview.chromium.org/1097313002

Cr-Commit-Position: refs/heads/master@{#27965}

LayoutDescriptor should inherit from JSTypedArray

It can't just inherit from a FixedTypedArray-like type, as we soon
assume that a FixedTypedArray-like type is always held by an
ArrayBufferView-like type

BUG=v8:3996
R=ishell@chromium.org,verwaest@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1084793004

Cr-Commit-Position: refs/heads/master@{#27964}

[turbofan] split all functions off of LinearScanAllocator which are unrelated to LinearScan

this is in preparation for landing the GreedyAllocator

BUG=

Review URL: https://codereview.chromium.org/1100713003

Cr-Commit-Position: refs/heads/master@{#27963}

[test] Initial import of an emscripten test suite.

These tests are based on individual tests from the Emscripten benchmark
suite, which are used to test Emscripten itself. We adopt them to test
asm.js code paths in V8.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1101493002

Cr-Commit-Position: refs/heads/master@{#27962}

[turbofan] Split ConstraintBuilder off of LiveRangeBuilder.

Plus some driveby cleanup.

Review URL: https://codereview.chromium.org/1099093002

Cr-Commit-Position: refs/heads/master@{#27961}

Factor formal argument parsing into ParserBase

This commit is a precursor to making lazy arrow function parsing use
similar logic to function(){} argument parsing.

Originally landed in these three CLs:

  https://codereview.chromium.org/1078093002
  https://codereview.chromium.org/1083623002
  https://codereview.chromium.org/1083953002

These were rolled out due to a performance regression on CodeLoad.  This
patchset will fix that by avoiding creation of a DuplicateFinder in the
full parser.

R=marja@chromium.org
BUG=
LOG=N

Review URL: https://codereview.chromium.org/1100713002

Cr-Commit-Position: refs/heads/master@{#27960}

Change hash table capacity heuristics when serializing.

Also extract non-templated parts of HashTable class into HashTableBase.

Review URL: https://codereview.chromium.org/1095273002

Cr-Commit-Position: refs/heads/master@{#27959}

Removed src/{isolate,property-details,utils}-inl.h

Baby steps towards saner #includes...

Review URL: https://codereview.chromium.org/1051393003

Cr-Commit-Position: refs/heads/master@{#27958}

Add myself to include/OWNERS

BUG=none
R=danno@chromium.org
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/1098873002

Cr-Commit-Position: refs/heads/master@{#27957}

Don't assert that no incremental marking happened during a non-incremental GC

If a scavenge is triggered during the GC (via a weak callback or the GC
prologue/epilogue), and another mark-compact is triggered (via the same
unfortunate code path), we end up doing some incremental steps.

BUG=v8:4048
R=dcarney@chromium.org,hpayer@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1096693011

Cr-Commit-Position: refs/heads/master@{#27956}

Wrap harmony implementations in functions.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1100673002

Cr-Commit-Position: refs/heads/master@{#27955}

[turbofan] Cleanup register allocator a little after split.

Review URL: https://codereview.chromium.org/1087983007

Cr-Commit-Position: refs/heads/master@{#27954}

Migrate error messages, part 4 (v8natives.js).

Goal is to reduce native context size.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1099573002

Cr-Commit-Position: refs/heads/master@{#27953}

[test-runner] Add dedicated test mode for tryserver.

BUG=

Review URL: https://codereview.chromium.org/1098883002

Cr-Commit-Position: refs/heads/master@{#27952}

make Handle a synonym of Local

R=svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/679143002

Cr-Commit-Position: refs/heads/master@{#27951}

Avoid having untyped slots for objects embedded into code because it breaks slots filtering.

BUG=chromium:478747,chromium:478811
LOG=N

Review URL: https://codereview.chromium.org/1096053002

Cr-Commit-Position: refs/heads/master@{#27950}

Small polishing changes to the native js.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1096763003

Cr-Commit-Position: refs/heads/master@{#27949}

Disable mjsunit/es7/object-observe on gc-stress, due to flakiness.

TBR=machenbach@chromium.org
CC=adamk@chromium.org
BUG=478788
LOG=N

Review URL: https://codereview.chromium.org/1092323003

Cr-Commit-Position: refs/heads/master@{#27948}

Import Reversed adapter from Chromium and use it in v8.

Review URL: https://codereview.chromium.org/1098863003

Cr-Commit-Position: refs/heads/master@{#27947}

[turbofan] split register allocator into little pieces

R=titzer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1094063002

Cr-Commit-Position: refs/heads/master@{#27946}

Reland "Refactor compilation dependency handling."

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1099473004

Cr-Commit-Position: refs/heads/master@{#27945}

Revert of Fix logic for doing incremental marking steps on tenured allocation. (patchset #4 id:60001 of https://codereview.chromium.org/1040233003/)

Reason for revert:
Suspected of triggering memory corruption issues, e.g. crbug.com/478401.

Original issue's description:
> Fix logic for doing incremental marking steps on tenured allocation.
>
> R=hpayer@chromium.org
> BUG=
>
> Committed: https://crrev.com/9716468ae63500adb74f5188c47de847e195d71b
> Cr-Commit-Position: refs/heads/master@{#27883}

TBR=hpayer@chromium.org,erikcorry@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1099633002

Cr-Commit-Position: refs/heads/master@{#27944}

Make sure builtins preserve guarantees about empty element array prototypes.

We have a bottleneck around storing elements in the array and object prototypes,
but the Push() and Unshift() builtins don't respect them.

Fix this exactly to the level of existing support for stores.

BUG=v8:4043
LOG=N
NOTRY=true

Review URL: https://codereview.chromium.org/1066003003

Cr-Commit-Position: refs/heads/master@{#27943}

Allow for accessing an ArrayBuffer contents without externalizing it

The embedder has to take appropriate steps to ensure that the
ArrayBuffer doesn't die while it's accessing the pointer, e.g. keep a
Local handle to it around

BUG=none
R=dslomov@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/1095083002

Cr-Commit-Position: refs/heads/master@{#27942}

Throw when attaching a stack trace to an object fails.

R=jarin@chromium.org
BUG=chromium:478011
LOG=N

Review URL: https://codereview.chromium.org/1077153003

Cr-Commit-Position: refs/heads/master@{#27941}

Wrap array implementation in a function.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1067523003

Cr-Commit-Position: refs/heads/master@{#27940}

Remove support for externally backed elements from the API

Embedders should use ArrayBuffers instead

BUG=v8:3996
LOG=y
R=verwaest@chromium.org,dslomov@chromium.org,kbr@chromium.org

Review URL: https://codereview.chromium.org/1092923002

Cr-Commit-Position: refs/heads/master@{#27939}

Deprecate 3-args ResourceConstraints::ConfigureDefaults

Embedders should use the 2-args version. Number of cores is just
ignored.

BUG=none
R=dcarney@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/1080633006

Cr-Commit-Position: refs/heads/master@{#27938}

Replace OVERRIDE->override and FINAL->final since we now require C++11.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1088993003

Cr-Commit-Position: refs/heads/master@{#27937}

Temporarily skip slow test.

TBR=bmeurer@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1093143002

Cr-Commit-Position: refs/heads/master@{#27936}

Always wrap AllocationSiteContext::current() in a new handle in Crankshaft.

R=mvstanton@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1086863003

Cr-Commit-Position: refs/heads/master@{#27935}

Indicate that low-memory-notificatin triggered GCs are "forced"

BUG=none
R=hpayer@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/1095043002

Cr-Commit-Position: refs/heads/master@{#27934}

Correctly name header macros for src/snapshot/*.h.

R=mvstanton@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1091983002

Cr-Commit-Position: refs/heads/master@{#27933}

Serializer: assert that we deserialize only one native context.

R=mvstanton@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1097893002

Cr-Commit-Position: refs/heads/master@{#27932}

Fix serialization statistics for external strings.

External strings are serialized as internal strings. The current way
of collecting stats is slightly wrong. We ought to use the map and
size passed to SerializePrologue.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1092253003

Cr-Commit-Position: refs/heads/master@{#27931}

[mjsunit] Import test case based on the Massive/SQLite benchmark.

This adds a stripped down version of the SQLite benchmark (running with
--size 1) to the mjsunit suite. We might want to move that to a
dedicated slow/stress/whatever test suite once an appropriate decision
is made.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1094043002

Cr-Commit-Position: refs/heads/master@{#27930}

Clean up output of heap object tracing

BUG=

Review URL: https://codereview.chromium.org/1097683002

Cr-Commit-Position: refs/heads/master@{#27929}

Update V8 DEPS.

Rolling v8/tools/clang to d3e6123fdadc4bf98b8c676173f77f8f8eed363f

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1096893002

Cr-Commit-Position: refs/heads/master@{#27928}

[modules] Parsing: add ModuleRequests where missing

Two last forms supported in this patch:
  - 'import' ModuleSpecifier
  - 'export' '*' 'from' ModuleSpecifier.

BUG=v8:1569
LOG=n

Review URL: https://codereview.chromium.org/1094963002

Cr-Commit-Position: refs/heads/master@{#27927}

Adding missing V8_EXPORT flag in SpaceStatistics class in v8.h

This class was added in crrev.com/1058253003 and missed V8_EXPORT in
definition.

BUG=466141, 476013
LOG=Y

Review URL: https://codereview.chromium.org/1090333002

Cr-Commit-Position: refs/heads/master@{#27926}

Turn off SupportsFlexibleFloorAndRound for Arm64 due to a bug.

There is a bug with SupportsFlexibleFloorAndRound on Arm64. Turn it off for
now until we figure out a proper solution.

BUG=chromium:476477
LOG=Y

Review URL: https://codereview.chromium.org/1093863002

Cr-Commit-Position: refs/heads/master@{#27925}

Initialize idle old generation allocation limit in constructor.

BUG=478082
NOTRY=true
LOG=n

Review URL: https://codereview.chromium.org/1093853002

Cr-Commit-Position: refs/heads/master@{#27924}

PPC: Reland "Add basic crankshaft support for slow-mode for-in to avoid disabling optimizations"

Port 8098253562c7585405f435145e7acf74ff0123f8

R=verwaest@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1057413003

Cr-Commit-Position: refs/heads/master@{#27923}

[visualizer]: Add types to visualizer output

Review URL: https://codereview.chromium.org/1083083006

Cr-Commit-Position: refs/heads/master@{#27922}

Fix GC-induced DCHECK failure in Runtime_GetWeakMapEntries

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1091253002

Cr-Commit-Position: refs/heads/master@{#27921}

Wrap object observe implementation in a function.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1086813005

Cr-Commit-Position: refs/heads/master@{#27920}

Adding V8 api to get memory statistics of spaces in V8::Heap.

This is first step towards adding V8 heap statistics to the memory
tracing infrastructure. For being able to get useful memory number into
the memory dump, v8 needs to provide an external api needs to obtain
more information about the heap. So, this Cl extends the api to give
information about the memory allocated and used in the spaces.

BUG=466141, 476013
LOG=Y

Review URL: https://codereview.chromium.org/1058253003

Cr-Commit-Position: refs/heads/master@{#27919}

Wrap JSON and generator implementation in functions.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1097703002

Cr-Commit-Position: refs/heads/master@{#27918}

Migrate error messages, part 3 (runtime.js).

Motivation for this is reducing the size of the native context.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1089303003

Cr-Commit-Position: refs/heads/master@{#27917}

Don't use normalized map cache for prototype maps

BUG=chromium:477924
LOG=n
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1090193002

Cr-Commit-Position: refs/heads/master@{#27916}

Bump limit in PushStackTraceAndDie

To increase the chances of minidumps containing enough useful information

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1068783006

Cr-Commit-Position: refs/heads/master@{#27915}

Rename some things around incremental marking triggers

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1094843002

Cr-Commit-Position: refs/heads/master@{#27914}

Whitespace commit to trigger bots.

Cr-Commit-Position: refs/heads/master@{#27913}

Revert "Factor formal argument parsing into ParserBase"

Revert https://codereview.chromium.org/1078093002/ and follow-on parser
patches due to a perf regression.

This reverts commit 53ddccfc33f7052429e3261e15a2bbabb05760b3.
This reverts commit 71d3213a3f9da3f2ade37fe22ad02d8a658172c2.
This reverts commit 0f432ebb76350a69d59edc303c181c8ba1719c96.
This reverts commit 1dbc43272954e8cfdf7be9a57c953a74b2a4d9da.

R=marja@chromium.org

Review URL: https://codereview.chromium.org/1094653002

Cr-Commit-Position: refs/heads/master@{#27912}

[crankshaft] Fix property access with proxies in prototype chain

BUG=

Review URL: https://codereview.chromium.org/1090813003

Cr-Commit-Position: refs/heads/master@{#27911}

Disable always-opt for locker tests.

In no-snap mode, creating 100 contexts can take a while.
This becomes even worse with always-opt.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1092003002

Cr-Commit-Position: refs/heads/master@{#27910}

Fix DCHECK with unsigned int in zone.cc.

R=svenpanne@chromium.org
BUG=v8:4037
LOG=N

Review URL: https://codereview.chromium.org/1051213005

Cr-Commit-Position: refs/heads/master@{#27909}

Re-enable an UNREACHABLE in JSObject::GetHeaderSize()

Review URL: https://codereview.chromium.org/1091553002

Cr-Commit-Position: refs/heads/master@{#27908}

Reland "Migrate error messages, part 2."

Review URL: https://codereview.chromium.org/1083083004

Cr-Commit-Position: refs/heads/master@{#27907}

X87: Reland "Add basic crankshaft support for slow-mode for-in to avoid disabling optimizations"

port 8098253562c7585405f435145e7acf74ff0123f8 (r27898)

original commit message:

BUG=

Review URL: https://codereview.chromium.org/1086813004

Cr-Commit-Position: refs/heads/master@{#27906}

Let asan imply clang and use_allocator=none.

BUG=

Review URL: https://codereview.chromium.org/1089393004

Cr-Commit-Position: refs/heads/master@{#27905}

Revert of Refactor compilation dependency handling. (patchset #4 id:60001 of https://codereview.chromium.org/1095433002/)

Reason for revert:
[Sheriff] Causes crashes in laout tests:
http://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2064%20%28dbg%29/builds/2543

Extra bisect run:
http://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2064%20%28dbg%29/builds/2548

Original issue's description:
> Refactor compilation dependency handling.
>
> Extract a new data structure CompilationDependencies and move (most) logic there.
>
> R=mstarzinger@chromium.org,verwaest@chromium.org
> BUG=
>
> Committed: https://crrev.com/b882479f1c84a48961b8aec81fa1bb1225034784
> Cr-Commit-Position: refs/heads/master@{#27892}

TBR=mstarzinger@chromium.org,verwaest@chromium.org,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1093783002

Cr-Commit-Position: refs/heads/master@{#27904}

Update V8 DEPS.

Rolling v8/tools/clang to 2afd19d64f7c67c73e2052e87fbe4e1bc2a671c9

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1098623002

Cr-Commit-Position: refs/heads/master@{#27903}

Revert of Revert "Remove early bail-out in VisitWeakList to investigate chrasher." (patchset #1 id:1 of https://codereview.chromium.org/1080303002/)

Reason for revert:
Still doesn't work

Original issue's description:
> Revert "Remove early bail-out in VisitWeakList to investigate chrasher."
>
> >  BUG=468601
> >  LOG=n
> >
> >  Review URL: https://codereview.chromium.org/1016353002
> >
> >  Cr-Commit-Position: refs/heads/master@{#27317}
>
> R=hpayer@chromium.org
> BUG=v8:3996,chromium:468601
> LOG=n
>
> Committed: https://crrev.com/835eeafe32f442d7b43fe175237de2c70ed7ceef
> Cr-Commit-Position: refs/heads/master@{#27814}

TBR=hpayer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3996,chromium:468601

Review URL: https://codereview.chromium.org/1092783002

Cr-Commit-Position: refs/heads/master@{#27902}

Serializer: share executable accessor infos between native contexts.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1081443006

Cr-Commit-Position: refs/heads/master@{#27901}

Properly report OOM when deoptimizer allocation fails

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1052823003

Cr-Commit-Position: refs/heads/master@{#27900}

Don't crash when reporting an access check failure for a detached global proxy

BUG=chromium:475884
LOG=y
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1086403002

Cr-Commit-Position: refs/heads/master@{#27899}

Reland "Add basic crankshaft support for slow-mode for-in to avoid disabling optimizations"

BUG=chromium:476592
LOG=n

Review URL: https://codereview.chromium.org/1086333002

Cr-Commit-Position: refs/heads/master@{#27898}