Adds a cast to V8 external snapshot code for Windows.

BUG=421063, 439661
LOG=N

Review URL: https://codereview.chromium.org/842573004

Cr-Commit-Position: refs/heads/master@{#26024}

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

Review URL: https://codereview.chromium.org/844283002

Cr-Commit-Position: refs/heads/master@{#26023}

R=dcarney@chromium.org
BUG=

Review URL: https://codereview.chromium.org/842153004

Cr-Commit-Position: refs/heads/master@{#26022}

R=bmeurer@chromium.org
BUG=chromium:447756
LOG=Y

Review URL: https://codereview.chromium.org/790813005

Cr-Commit-Position: refs/heads/master@{#26021}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/809333002

Cr-Commit-Position: refs/heads/master@{#26020}

All builders that used level 1 should meanwhile define
v8_enable_slow_dchecks, and so they can use level 2 without losing
coverage. Level 2, however, is considerably faster, so we want to use it
on those builders as well. The make optdebug setting is not affected by
this change.

BUG=none
R=machenbach@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/847753002

Cr-Commit-Position: refs/heads/master@{#26019}

Allows \u{xxxxx} in regexps. Behind the --harmony-unicode flag.

Part 1 is here: https://codereview.chromium.org/716423002

BUG=v8:3648
LOG=N

Review URL: https://codereview.chromium.org/788043005

Cr-Commit-Position: refs/heads/master@{#26018}

Rolling v8/third_party/icu to 4e3266f32c62d30a3f9e2232a753c60129d1e670

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/843313002

Cr-Commit-Position: refs/heads/master@{#26017}

Improper use of immediate constraint is slightly non-optimal
with gcc/gnu-as but causes breakage with clang.

BUG=

Review URL: https://codereview.chromium.org/841263002

Cr-Commit-Position: refs/heads/master@{#26016}

The default for the various debug modes doesn't change.

In a follow-up, OptDebug1 and OptDebug2 will be merged

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

Review URL: https://codereview.chromium.org/846653002

Cr-Commit-Position: refs/heads/master@{#26015}

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/843043002

Cr-Commit-Position: refs/heads/master@{#26014}

BUG=none
LOG=n
R=machenbach@chromium.org,glider@chromium.org

Review URL: https://codereview.chromium.org/838383005

Cr-Commit-Position: refs/heads/master@{#26013}

Since we have a special guard page at the beginning of the code range on
win64, we need to make sure to adjust the size of the free list
accordingly when creating it.

BUG=chromium:447555
R=hpayer@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/843973002

Cr-Commit-Position: refs/heads/master@{#26012}

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

Review URL: https://codereview.chromium.org/809803007

Cr-Commit-Position: refs/heads/master@{#26011}

BUG=403113
LOG=n

Review URL: https://codereview.chromium.org/831893003

Cr-Commit-Position: refs/heads/master@{#26010}

R=jarin@chromium.org
BUG=chromium:447526

Review URL: https://codereview.chromium.org/828823006

Cr-Commit-Position: refs/heads/master@{#26009}

This is to ensure that chromium:443798 is caused by a random memory
corruption.

Review URL: https://codereview.chromium.org/846613002

Cr-Commit-Position: refs/heads/master@{#26008}

Review URL: https://codereview.chromium.org/845713002

Cr-Commit-Position: refs/heads/master@{#26007}

(Debug builds have --enable-slow-asserts, and with slow asserts each
assignment to the array in the prepare function will trigger a check
over the entire array. This turns it into n^2 work, for reasonably
large n.)

BUG=

Review URL: https://codereview.chromium.org/831953003

Cr-Commit-Position: refs/heads/master@{#26006}

R=marja@chromium.org

Review URL: https://codereview.chromium.org/840253002

Cr-Commit-Position: refs/heads/master@{#26005}

Rolling v8/buildtools to 451dcd05a5b34936f5be67b2472cd63aaa508401

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/834243003

Cr-Commit-Position: refs/heads/master@{#26004}

BUG=

Review URL: https://codereview.chromium.org/831193004

Cr-Commit-Position: refs/heads/master@{#26003}

BUG=

Review URL: https://codereview.chromium.org/804603006

Cr-Commit-Position: refs/heads/master@{#26002}

Instead, just use DCHECKs. The builders that want them in release mode
should already be useding dcheck_always_on anyways

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

Review URL: https://codereview.chromium.org/841083002

Cr-Commit-Position: refs/heads/master@{#26001}

R=rossberg@chromium.org
BUG=v8:3330

Review URL: https://codereview.chromium.org/836393003

Cr-Commit-Position: refs/heads/master@{#26000}

BUG=

Review URL: https://codereview.chromium.org/823583010

Cr-Commit-Position: refs/heads/master@{#25999}

Revert of Revert of Revert of Turn on job-based recompilation (patchset #1 id:1 of https://codereview.chromium.org/840023002/)

Reason for revert:
still doesn't work

Original issue's description:
> Revert of Revert of Turn on job-based recompilation (patchset #1 id:1 of https://codereview.chromium.org/791033007/)
>
> Reason for revert:
> attempt reland after landing a fix
>
> Original issue's description:
> > Revert of Turn on job-based recompilation (patchset #2 id:20001 of https://codereview.chromium.org/832183004/)
> >
> > Reason for revert:
> > revert
> >
> > Original issue's description:
> > > Turn on job-based recompilation
> > >
> > > BUG=v8:3608
> > > LOG=y
> > > R=yangguo@chromium.org
> > >
> > > Committed: https://crrev.com/715552409b4a08504301cf1ad4cb2e45a815f01b
> > > Cr-Commit-Position: refs/heads/master@{#25972}
> >
> > TBR=yangguo@chromium.org
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=v8:3608
> >
> > Committed: https://crrev.com/28a5a4865183769cbed9d42ad3fdc1b1d8bae3a3
> > Cr-Commit-Position: refs/heads/master@{#25975}
>
> TBR=yangguo@chromium.org
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3608
>
> Committed: https://crrev.com/b4bc9c1a3a7d03dee0b3dd6460414085f79cd36e
> Cr-Commit-Position: refs/heads/master@{#25994}

TBR=yangguo@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=v8:3608

Review URL: https://codereview.chromium.org/832103003

Cr-Commit-Position: refs/heads/master@{#25998}

- Use C++11 range based for loops.
- Remove duplicated virtual register set in unittests.
- Don't expose implementation details of InstructionSelector.

TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/837423002

Cr-Commit-Position: refs/heads/master@{#25997}

Revert of Revert of Add d8 target to the GN build. (patchset #1 id:1 of https://codereview.chromium.org/838983002/)

Reason for revert:
Relanding because this is not actually blocking the roll.

Original issue's description:
> Revert of Add d8 target to the GN build. (patchset #2 id:40001 of https://codereview.chromium.org/834113005/)
>
> Reason for revert:
> V8 roll fails due to this change. (see https://codereview.chromium.org/843673003/)
>
> Original issue's description:
> > Add d8 target to the GN build.
> >
> > Also formats the rest of the file with "gn format". This accounts for all the changes except for the "d8" target additions.
> >
> > Committed: https://crrev.com/36383f08c1f692ea797d54a27d7c6b3d3d53b440
> > Cr-Commit-Position: refs/heads/master@{#25984}
>
> TBR=jochen@chromium.org,machenbach@chromium.org,brettw@chromium.org
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://crrev.com/ef50fdfdb05e1a3a3822962f5235b804218a5f4e
> Cr-Commit-Position: refs/heads/master@{#25985}

TBR=jochen@chromium.org,machenbach@chromium.org,brettw@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/833563004

Cr-Commit-Position: refs/heads/master@{#25996}

R=svenpanne@chromium.org
BUG=v8:3771
LOG=N

Review URL: https://codereview.chromium.org/841943002

Cr-Commit-Position: refs/heads/master@{#25995}

Revert of Revert of Turn on job-based recompilation (patchset #1 id:1 of https://codereview.chromium.org/791033007/)

Reason for revert:
attempt reland after landing a fix

Original issue's description:
> Revert of Turn on job-based recompilation (patchset #2 id:20001 of https://codereview.chromium.org/832183004/)
>
> Reason for revert:
> revert
>
> Original issue's description:
> > Turn on job-based recompilation
> >
> > BUG=v8:3608
> > LOG=y
> > R=yangguo@chromium.org
> >
> > Committed: https://crrev.com/715552409b4a08504301cf1ad4cb2e45a815f01b
> > Cr-Commit-Position: refs/heads/master@{#25972}
>
> TBR=yangguo@chromium.org
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3608
>
> Committed: https://crrev.com/28a5a4865183769cbed9d42ad3fdc1b1d8bae3a3
> Cr-Commit-Position: refs/heads/master@{#25975}

TBR=yangguo@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=v8:3608

Review URL: https://codereview.chromium.org/840023002

Cr-Commit-Position: refs/heads/master@{#25994}

Otherwise, the isolate that is referenced by the scope might already be
gone

BUG=v8:3608
R=yangguo@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/836413005

Cr-Commit-Position: refs/heads/master@{#25993}

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/821553003

Patch from Ben Noordhuis <ben@strongloop.com>.

Cr-Commit-Position: refs/heads/master@{#25992}

Revert of Hack around broken snapshot generation in the GN build on Android. (patchset #1 id:1 of https://codereview.chromium.org/832413005/)

Reason for revert:
Suspected to block the current v8 roll:
https://codereview.chromium.org/842783003/

Original issue's description:
> Hack around broken snapshot generation in the GN build on Android.
>
> The generated snapshot just crashes on the device, but
> disabling snapshots allows us to run V8 just fine which
> is sufficient for our purposes at this point.
>
> Mojo/Sky are GN-only so we depend on the V8 GN build even if
> it's not considered production for Chromium yet.
>
> R=jochen@chromium.org
>
> Committed: https://crrev.com/3e97df1ee8b8bfdddd63ad3c7b79960d24c83b74
> Cr-Commit-Position: refs/heads/master@{#25982}

TBR=jochen@chromium.org,eseidel@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/841043002

Cr-Commit-Position: refs/heads/master@{#25991}

Revert of Run "gn format" on v8's BUILD.gn file. (patchset #1 id:1 of https://codereview.chromium.org/787873003/)

Reason for revert:
Need to revert in order to revert
https://codereview.chromium.org/832413005/

Original issue's description:
> Run "gn format" on v8's BUILD.gn file.
>
> There should be no functional change.
>
> This is a reland of a portion of https://codereview.chromium.org/834113005/
>
> Committed: https://crrev.com/e1d957268d154e7fb7abd5a6cad54f602badc9b8
> Cr-Commit-Position: refs/heads/master@{#25986}

TBR=jochen@chromium.org,brettw@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/793613003

Cr-Commit-Position: refs/heads/master@{#25990}

Instead of using only \n as line terminator, we now use the definition
in http://www.ecma-international.org/ecma-262/5.1/#sec-7.3

R=marja@chromium.org
BUG=v8:2825
LOG=Y

Review URL: https://codereview.chromium.org/821383009

Cr-Commit-Position: refs/heads/master@{#25989}

Removed a superfluous space on the way.

BUG=v8:3679
LOG=y

Review URL: https://codereview.chromium.org/843673004

Cr-Commit-Position: refs/heads/master@{#25988}

TEST=cctest/test-representation-change,unittests,mjsunit/compiler/regress-bit-number-constant
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/840953003

Cr-Commit-Position: refs/heads/master@{#25987}

There should be no functional change.

This is a reland of a portion of https://codereview.chromium.org/834113005/

Review URL: https://codereview.chromium.org/787873003

Cr-Commit-Position: refs/heads/master@{#25986}

Revert of Add d8 target to the GN build. (patchset #2 id:40001 of https://codereview.chromium.org/834113005/)

Reason for revert:
V8 roll fails due to this change. (see https://codereview.chromium.org/843673003/)

Original issue's description:
> Add d8 target to the GN build.
>
> Also formats the rest of the file with "gn format". This accounts for all the changes except for the "d8" target additions.
>
> Committed: https://crrev.com/36383f08c1f692ea797d54a27d7c6b3d3d53b440
> Cr-Commit-Position: refs/heads/master@{#25984}

TBR=jochen@chromium.org,machenbach@chromium.org,brettw@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/838983002

Cr-Commit-Position: refs/heads/master@{#25985}