Plus some driveby cleanup.

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

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

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}

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

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

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

Baby steps towards saner #includes...

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

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

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

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

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

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}

R=jkummerow@chromium.org

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

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

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

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

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}

BUG=

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

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

R=svenpanne@chromium.org

BUG=

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

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

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

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

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

R=jkummerow@chromium.org

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

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

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}

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

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

R=titzer@chromium.org

BUG=

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

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

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}

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}

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}

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

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

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

R=jkummerow@chromium.org

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

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

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}

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}

R=jochen@chromium.org

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

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

TBR=bmeurer@chromium.org
NOTRY=true

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

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

R=mvstanton@chromium.org
BUG=

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

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

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

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

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

R=mvstanton@chromium.org
NOTRY=true

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

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

R=mvstanton@chromium.org
NOTRY=true

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

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

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}

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}

BUG=

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

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

Rolling v8/tools/clang to d3e6123fdadc4bf98b8c676173f77f8f8eed363f

TBR=machenbach@chromium.org

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

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

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}

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}

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}

BUG=478082
NOTRY=true
LOG=n

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

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

Port 80982535

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}

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

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