(1) --prof-cpp: Collects ticks like --prof, but ignores code creation events to reduce distortion (so all JS ticks will be "unaccounted"). Useful for profiling C++ code.
(2) --timed-range flag for tick processor: Ignores ticks before the first and after the last call to Date.now(). Useful for focusing on the timed section of a test.

Review URL: https://codereview.chromium.org/802333002

Cr-Commit-Position: refs/heads/master@{#26168}

BUG=

Review URL: https://codereview.chromium.org/860013002

Cr-Commit-Position: refs/heads/master@{#26167}

Revert of Make clang the default on linux. (patchset #2 id:20001 of https://codereview.chromium.org/781983002/)

Reason for revert:
breaks arm and mips compilation on main waterfall

Original issue's description:
> Make clang the default on linux.
>
> TBR=jochen@chromium.org
>
> Committed: https://crrev.com/006b5c5cfd8517563601f331bc7a57e13bfeb202
> Cr-Commit-Position: refs/heads/master@{#26164}

TBR=machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/861553004

Cr-Commit-Position: refs/heads/master@{#26166}

R=dslomov@chromium.org
TEST=mjsunit/harmony/computed-property-names-classes

Review URL: https://codereview.chromium.org/861713004

Cr-Commit-Position: refs/heads/master@{#26165}

TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/781983002

Cr-Commit-Position: refs/heads/master@{#26164}

Review URL: https://codereview.chromium.org/853703002

Cr-Commit-Position: refs/heads/master@{#26163}

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

Review URL: https://codereview.chromium.org/863683002

Cr-Commit-Position: refs/heads/master@{#26162}

This is a follow-up to https://codereview.chromium.org/859943003.

Review URL: https://codereview.chromium.org/847963004

Cr-Commit-Position: refs/heads/master@{#26161}

BUG=

Review URL: https://codereview.chromium.org/857953002

Cr-Commit-Position: refs/heads/master@{#26160}

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/860003002

Cr-Commit-Position: refs/heads/master@{#26159}

This prevents clang from inlining and returning inconsistent results.

R=bmeurer@chromium.org
BUG=v8:3802
LOG=N

Review URL: https://codereview.chromium.org/831393006

Cr-Commit-Position: refs/heads/master@{#26158}

This method circumvented JS semantics, and should not be used.

BUG=

Review URL: https://codereview.chromium.org/854493004

Cr-Commit-Position: refs/heads/master@{#26157}

BUG=

Review URL: https://codereview.chromium.org/854363003

Cr-Commit-Position: refs/heads/master@{#26156}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/857853004

Cr-Commit-Position: refs/heads/master@{#26155}

This way we stay in sync with what Chromium does and we reduce the
number of bugs caused by 80-to-{32,64}-bit rounding errors. It's also
a requirement for switching to signaling NaN for FixedDoubleArray holes.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/864483002

Cr-Commit-Position: refs/heads/master@{#26154}

BUG=v8:3826
LOG=n
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/859943003

Cr-Commit-Position: refs/heads/master@{#26153}

There is no need to embed function pointer in code.

BUG=v8:3823
LOG=N

Review URL: https://codereview.chromium.org/817483005

Cr-Commit-Position: refs/heads/master@{#26152}

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

Review URL: https://codereview.chromium.org/846743004

Cr-Commit-Position: refs/heads/master@{#26151}

BUG=

Review URL: https://codereview.chromium.org/855993003

Cr-Commit-Position: refs/heads/master@{#26150}

BUG=

Review URL: https://codereview.chromium.org/816053002

Cr-Commit-Position: refs/heads/master@{#26149}

port 8c990d17

original commit message:
  add stub for api function calls with known number of parameters

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/852263004

Cr-Commit-Position: refs/heads/master@{#26148}

Port 79ed8f17

BUG=
R=akos.palfi@imgtec.com

Review URL: https://codereview.chromium.org/858893002

Cr-Commit-Position: refs/heads/master@{#26147}

PropertyKind:
  DATA -> kData
  ACCESSOR -> kAccessor

PropertyType:
  FIELD -> DATA
  CONSTANT -> DATA_CONSTANT
  ACCESSOR_FIELD -> ACCESSOR
  CALLBACKS -> ACCESSOR_CONSTANT

PropertyLocation:
  IN_OBJECT -> kField
  IN_DESCRIPTOR -> kDescriptor

StoreMode:
  FORCE_IN_OBJECT -> FORCE_FIELD

FieldDescriptor -> DataDescriptor
ConstantDescriptor -> DataConstantDescriptor
CallbacksDescriptor -> AccessorConstantDescriptor

Review URL: https://codereview.chromium.org/856503002

Cr-Commit-Position: refs/heads/master@{#26146}

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/804713006

Cr-Commit-Position: refs/heads/master@{#26145}

This relands parts of
https://codereview.chromium.org/843913009

It prepares for using this script outside of v8, e.g. in a
chromium hook.

The script is intended to run as a hook and will create
version_gen.cc if the content has changed.

Changes to gyp and gn files can land as a follow up, once
calling the hook on the chromium side has landed.

BUG=chromium:446166
LOG=n

Review URL: https://codereview.chromium.org/830093003

Cr-Commit-Position: refs/heads/master@{#26144}

TBR=titzer@chromium.org
TEST=mjsunit/compiler/opt-next-call-turbo

Review URL: https://codereview.chromium.org/862533002

Cr-Commit-Position: refs/heads/master@{#26143}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/863443003

Cr-Commit-Position: refs/heads/master@{#26142}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/863513002

Cr-Commit-Position: refs/heads/master@{#26141}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/855653002

Cr-Commit-Position: refs/heads/master@{#26140}

Use simple HAS-A relationship instead of obscure multiple inheritance.
In theory, UBSan should be totally happy with this, but it still isn't.
This seems to be a bug in UBSan, see e.g.
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2014-December/040225.html

BUG=chromium:448102
LOG=y

Review URL: https://codereview.chromium.org/859773002

Cr-Commit-Position: refs/heads/master@{#26139}

See CompileTopLevel for similar logic which suppresses producing parser cache
when the debugger is active.

BUG=441130
LOG=n

Review URL: https://codereview.chromium.org/845643005

Cr-Commit-Position: refs/heads/master@{#26138}

BUG=449930
LOG=N

Review URL: https://codereview.chromium.org/859783002

Cr-Commit-Position: refs/heads/master@{#26137}

BUG=3215
LOG=N

Review URL: https://codereview.chromium.org/855333002

Cr-Commit-Position: refs/heads/master@{#26136}

R=verwaest@chromium.org
TEST=mjsunit/harmony/computed-property-names

Review URL: https://codereview.chromium.org/862513002

Cr-Commit-Position: refs/heads/master@{#26135}

Revert of Temporarily restore make dependencies (patchset #1 id:1 of https://codereview.chromium.org/733203008/)

Reason for revert:
make dependencies is stale now, and everybody should have switched over

Original issue's description:
> Temporarily restore make dependencies
>
> We will remove dependencies in about a week again.
>
> BUG=none
> R=machenbach@chromium.org
> LOG=y

TBR=machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review URL: https://codereview.chromium.org/791813007

Cr-Commit-Position: refs/heads/master@{#26134}

R=mvstanton@chromium.org
BUG=chromium:449937
LOG=N

Review URL: https://codereview.chromium.org/861583002

Cr-Commit-Position: refs/heads/master@{#26133}

BUG=v8:3820, v8:3821
LOG=N
R=arv@chromium.org, dslomov@chromium.org, marja@chromium.org

Review URL: https://codereview.chromium.org/857433004

Cr-Commit-Position: refs/heads/master@{#26132}

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/855873002

Cr-Commit-Position: refs/heads/master@{#26131}

LOG=N
R=dpino@igalia.com, arv@chromium.org, dslomov@chromium.org
BUG=

Review URL: https://codereview.chromium.org/851163007

Cr-Commit-Position: refs/heads/master@{#26130}

BUG=

Review URL: https://codereview.chromium.org/855903002

Cr-Commit-Position: refs/heads/master@{#26129}