Porting Chromium's https://codereview.chromium.org/1142783002/ to fix a division-by-zero bug.

BUG=chromium:488302
LOG=n

Review URL: https://codereview.chromium.org/1135293003

Cr-Commit-Position: refs/heads/master@{#28475}

For dumping the number of objects and size of objects alive after the
last gc into chrome://tracing memory dumps, this CL adds new api to
get these number for each isolate.

Note: Chrome should be run with --js-flags='--track_gc_object_stats
--noincremental-marking' for object tracking.

BUG=476013
LOG=Y

Review URL: https://codereview.chromium.org/1113233002

Cr-Commit-Position: refs/heads/master@{#28474}

Revert of Reapply "Resolve references to "this" the same way as normal variables"" (patchset #2 id:20001 of https://codereview.chromium.org/1136883006/)

Reason for revert:
Something is deserializing "this" declarations as Variable::NORMAL and not Variable::THIS https://codereview.chromium.org/1136123010/

Original issue's description:
> Reapply "Resolve references to "this" the same way as normal variables""
>
> 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=
>
> Committed: https://crrev.com/1efc1e4f7a3d30d5225e9d5cb2585cad7cb17099
> Cr-Commit-Position: refs/heads/master@{#28458}

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

Review URL: https://codereview.chromium.org/1146733002

Cr-Commit-Position: refs/heads/master@{#28473}

Implement assembler, disassembler tests for all instructions for mips32 and mips64. Additionally, add missing single precision float instructions for r2 and r6 architecture variants in assembler, simulator and disassembler with corresponding tests.

Review URL: https://codereview.chromium.org/1147493002

Cr-Commit-Position: refs/heads/master@{#28472}

MIPS64r6 and MIPS32r6 support for min and max and Float64Max machine operators.

BUG=

Review URL: https://codereview.chromium.org/1027193002

Cr-Commit-Position: refs/heads/master@{#28471}

Relying on the polyfill for now.

BUG=v8:4124
LOG=N
R=bbudge@chromium.org,machenbach@chromium.org
TEST=trybots

Review URL: https://codereview.chromium.org/1147743004

Cr-Commit-Position: refs/heads/master@{#28470}

port 1efc1e4f (r28458).

original commit message:

  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

BUG=

Review URL: https://codereview.chromium.org/1135233003

Cr-Commit-Position: refs/heads/master@{#28469}

This in turn allows usage of AdvancedReducer::ReplaceWithValue which
has access to the underlying graph reducer. It will allow us to deal
with exception continuations correctly.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1134303003

Cr-Commit-Position: refs/heads/master@{#28468}

X87: Now that vector ics are established for load, keyed load and call ics, let's remove dead code behind the flag.

port 323ced9e (r28422).

original commit message:

BUG=

Review URL: https://codereview.chromium.org/1142713007

Cr-Commit-Position: refs/heads/master@{#28467}

During inlining we should pay attention to only rewire the outer frame
states of the inlinee, but leave any inner frame states of the inlinee
untouched.  Otherwise we might run into trouble once we start caching
graphs, or do getter/setter inlining.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1134973006

Cr-Commit-Position: refs/heads/master@{#28466}

R=mvstanton@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1133113004

Cr-Commit-Position: refs/heads/master@{#28465}

Revert of [strong] Object literals create strong objects (patchset #4 id:60001 of https://codereview.chromium.org/1134333005/)

Reason for revert:
[Sheriff] Segmentation fault on arm64 with nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%201/builds/1990

Original issue's description:
> [strong] Object literals create strong objects
>
> R=dslomov@chromium.org
> BUG=v8:3956
> LOG=N
>
> Committed: https://crrev.com/fe6598cffb82ec4180dcc2e2310e77d07a803f96
> Cr-Commit-Position: refs/heads/master@{#28444}

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

Review URL: https://codereview.chromium.org/1135493006

Cr-Commit-Position: refs/heads/master@{#28464}

BUG=chromium:487608
LOG=y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1133343003

Cr-Commit-Position: refs/heads/master@{#28463}

Review URL: https://codereview.chromium.org/1142043003

Cr-Commit-Position: refs/heads/master@{#28462}

Clearing stepping was originally introduced in http://codereview.chromium.org/7889039
But DebugEvaluate now also uses a DisableBreak scope, which makes sure we don't step
inside the evaluated code.

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

Review URL: https://codereview.chromium.org/1129363003

Cr-Commit-Position: refs/heads/master@{#28461}

Rolling v8/tools/clang to a01f3daa088378f5ae90e37e5673d963b63d05dc

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1136643007

Cr-Commit-Position: refs/heads/master@{#28460}

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}

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

Cr-Commit-Position: refs/heads/master@{#28459}

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}