This reapplies https://codereview.chromium.org/1136073002, along with
the followups:

  Remove Scope::scope_uses_this_ flag
  https://codereview.chromium.org/1128963005

and

  PPC: Resolve references to "this" the same way as normal variables
  https://codereview.chromium.org/1134073003

R=yangguo@chromium.org, rossberg@chromium.org
LOG=N
BUG=

Review URL: https://codereview.chromium.org/1136883006

Cr-Commit-Position: refs/heads/master@{#28458}

R=arv@chromium.org,rossberg@chromium.org
BUG=v8:811
LOG=N

Review URL: https://codereview.chromium.org/1139773005

Cr-Commit-Position: refs/heads/master@{#28457}

This function creates a new way to make TypedArrays based on existing
iterable or Array-like objects, analogous to Array.from. The patch
implements the function and adds tests.

R=arv@chromium.org
BUG=v8:3578
LOG=Y

Review URL: https://codereview.chromium.org/1132163011

Cr-Commit-Position: refs/heads/master@{#28456}

BUG=chromium:489290
LOG=Y

Review URL: https://codereview.chromium.org/1145653004

Cr-Commit-Position: refs/heads/master@{#28455}

BUG=v8:4107, v8:2159
LOG=N
R=arv@chromium.org

Review URL: https://codereview.chromium.org/1141223002

Cr-Commit-Position: refs/heads/master@{#28454}

BUG=chromium:487974
LOG=N

Review URL: https://codereview.chromium.org/1145703002

Cr-Commit-Position: refs/heads/master@{#28453}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1132353004

Cr-Commit-Position: refs/heads/master@{#28452}

BUG=484208
LOG=n
TBR=kjellander@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1139833003

Cr-Commit-Position: refs/heads/master@{#28451}

NOTRY=true

Review URL: https://codereview.chromium.org/1140603005

Cr-Commit-Position: refs/heads/master@{#28450}

Revert of [V8] Added Script::is_opaque flag for embedders (patchset #5 id:80001 of https://codereview.chromium.org/1140673002/)

Reason for revert:
[Sheriff] Breaks chromium win compilation:
http://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Win/builds/96

Original issue's description:
> [V8] Added Script::is_opaque flag for embedders
>
> When the page is controlled by a ServiceWorker, the ServiceWorker can return an opaque (non-CORS cross origin) resource response.
> We need to treat the messages from such script resource as opaque.
>
> Committed: https://crrev.com/7a599c5e1242d3c5ab7515ee149623da90ae69ec
> Cr-Commit-Position: refs/heads/master@{#28445}

TBR=mkwst@chromium.org,jochen@chromium.org,yangguo@chromium.org,horo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1135343005

Cr-Commit-Position: refs/heads/master@{#28449}

This will send automatic email notifications about reliable
failures from the respective jobs.

NOTRY=true

Review URL: https://codereview.chromium.org/1147713002

Cr-Commit-Position: refs/heads/master@{#28448}

The functions of strong classes are born non extensible. But, when
the class is created we need to add an own private symbol representing
the [[HomeObject]] slot in the spec.

Like for the hidden_string property, we allow adding private own
symbols to non extensible objects.

BUG=v8:4077
LOG=N
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/1138603003

Cr-Commit-Position: refs/heads/master@{#28447}

The simd.js benchmarks reside in the same repository
that holds the compliance tests.

Adding an option to run-test.py to download test data
and exit, so that a recipe to run the simd.js
benchmarks can call run-test.py with this option
to fetch the test data.

BUG=https://code.google.com/p/v8/issues/detail?id=4124
LOG=N
TEST=manual verification it works.
NOTRY=true
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1140353002

Cr-Commit-Position: refs/heads/master@{#28446}

When the page is controlled by a ServiceWorker, the ServiceWorker can return an opaque (non-CORS cross origin) resource response.
We need to treat the messages from such script resource as opaque.

Review URL: https://codereview.chromium.org/1140673002

Cr-Commit-Position: refs/heads/master@{#28445}

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

Review URL: https://codereview.chromium.org/1134333005

Cr-Commit-Position: refs/heads/master@{#28444}

BUG=

Review URL: https://codereview.chromium.org/1145693002

Cr-Commit-Position: refs/heads/master@{#28443}

This reverts commit ac5336ba.

BUG=

Review URL: https://codereview.chromium.org/1138483005

Cr-Commit-Position: refs/heads/master@{#28442}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1136413002

Cr-Commit-Position: refs/heads/master@{#28441}

TEST=cctest/test-assembler-mips/MIPS11
BUG=

Review URL: https://codereview.chromium.org/1133663007

Cr-Commit-Position: refs/heads/master@{#28440}

Review URL: https://codereview.chromium.org/1130133003

Cr-Commit-Position: refs/heads/master@{#28439}

Rolling v8/tools/clang to 26185eb8de21f4755350a246d30bca8cd5a12deb

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1132373004

Cr-Commit-Position: refs/heads/master@{#28438}

Revert of Mark internal AccessorInfo properties as "special data properties" (patchset #2 id:20001 of https://codereview.chromium.org/1123163005/)

Reason for revert:
[Sheriff] Blocks current roll:
https://codereview.chromium.org/1124403007/

Bisection (https://codereview.chromium.org/1142753002/) points to this CL.

Original issue's description:
> Mark internal AccessorInfo properties as "special data properties" to ensure correct strict-mode handling.
>
> BUG=
>
> Committed: https://crrev.com/188297160d2b82a4e2a206ebbddfc21dd99a9d8d
> Cr-Commit-Position: refs/heads/master@{#28369}

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

Review URL: https://codereview.chromium.org/1142763002

Cr-Commit-Position: refs/heads/master@{#28437}

Revert of Debugger: preserve stepping state after evaluating breakpoint condition. (patchset #1 id:1 of https://codereview.chromium.org/1132643004/)

Reason for revert:
[Sheriff] This breaks TSAN (makes some tests marked as flaky permanently fail):
http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/3882

Original issue's description:
> Debugger: preserve stepping state after evaluating breakpoint condition.
>
> R=ulan@chromium.org, yurys@chromium.org
> BUG=chromium:467180
> LOG=N

TBR=ulan@chromium.org,yurys@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:467180

Review URL: https://codereview.chromium.org/1130123007

Cr-Commit-Position: refs/heads/master@{#28436}

BUG=
TBR=machenbach@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1123393006

Cr-Commit-Position: refs/heads/master@{#28435}

Rolling v8/tools/clang to ec43def7c912c4a6bfadaf9e500bfb05da263f6f

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1139293002

Cr-Commit-Position: refs/heads/master@{#28434}

Rolling v8/third_party/icu to 5788e2736b3bc642994b6351a6096124895afa01

Rolling v8/tools/clang to e11ef3ee3eecde207b8a38916b34fde40352f466

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1138003006

Cr-Commit-Position: refs/heads/master@{#28433}

R=ulan@chromium.org, yurys@chromium.org
BUG=chromium:467180
LOG=N

Review URL: https://codereview.chromium.org/1132643004

Cr-Commit-Position: refs/heads/master@{#28432}

PPC: Now that vector ics are established for load, keyed load and call ics, let's remove dead code behind the flag.

Port 323ced9e

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

Review URL: https://codereview.chromium.org/1132513007

Cr-Commit-Position: refs/heads/master@{#28431}

BUG=

Review URL: https://codereview.chromium.org/1138643005

Cr-Commit-Position: refs/heads/master@{#28430}

BUG=chromium:483147
LOG=n

Review URL: https://codereview.chromium.org/1140693003

Cr-Commit-Position: refs/heads/master@{#28429}

BUG=

Review URL: https://codereview.chromium.org/1138643003

Cr-Commit-Position: refs/heads/master@{#28428}

570fca61 introduced a regression that caused minification etc. to be
applied to V8 extras.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1125103003

Cr-Commit-Position: refs/heads/master@{#28427}

All the builtin iterators as well as the generator objects have an
object called %IteratorPrototype% in the spec between them and
%ObjectPrototype%.

BUG=v8:3568
LOG=N

Review URL: https://codereview.chromium.org/1128233008

Cr-Commit-Position: refs/heads/master@{#28426}

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1127333004

Cr-Commit-Position: refs/heads/master@{#28425}

R=hablich@chromium.org
BUG=chromium:487289
LOG=N

Review URL: https://codereview.chromium.org/1137293002

Cr-Commit-Position: refs/heads/master@{#28424}

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1140053002

Cr-Commit-Position: refs/heads/master@{#28423}

Now that vector ics are established for load, keyed load and call ics, let's remove dead code behind the flag.

BUG=

Review URL: https://codereview.chromium.org/1129853002

Cr-Commit-Position: refs/heads/master@{#28422}

Unnecessary, and unhandled as well.

BUG=488398
R=jarin@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1141163004

Cr-Commit-Position: refs/heads/master@{#28421}

This slightly reduces the initial context size.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/1146523002

Cr-Commit-Position: refs/heads/master@{#28420}

First step towards support for inlining based on SharedFunctionInfo
instead of JSFunction.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1134713004

Cr-Commit-Position: refs/heads/master@{#28419}