Make Error.prototype.toString spec compliant; and fix various side-effect-free error printing methods

R=yangguo@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1507273002

Cr-Commit-Position: refs/heads/master@{#32695}

  port 7a22fdff(r32690)

  original commit message:
  This only introduces the basic support for both SOFT and EAGER deopts in
  TurboFan, but doesn't make use of SOFT deopts anywhere yet (there are
  some other issues blocking that). Basically every Deoptimize operator
  now has a DeoptimizeKind, which can be either kSoft or kEager.

BUG=

Review URL: https://codereview.chromium.org/1508323002

Cr-Commit-Position: refs/heads/master@{#32694}

It's cumbersome to maintain IC profiler statistics all the time.
Let's just do it as needed.

BUG=

Review URL: https://codereview.chromium.org/1507903004

Cr-Commit-Position: refs/heads/master@{#32693}

BUG=v8:3900, v8:3931, v8:1543, v8:3330, v8:4002
LOG=n

Review URL: https://codereview.chromium.org/1496333002

Cr-Commit-Position: refs/heads/master@{#32692}

Revert of [CQ] Temporarily switch off pure swarming bots. (patchset #1 id:1 of https://codereview.chromium.org/1502143005/ )

Reason for revert:
Switched swarming back on.

Original issue's description:
> [CQ] Temporarily switch off pure swarming bots.
>
> NOTRY=true
> NOTREECHECKS=true
> NOPRESUBMIT=true
>
> Committed: https://crrev.com/cd96d74124d9c4f4c713fd17205becf30d510edb
> Cr-Commit-Position: refs/heads/master@{#32674}

TBR=tandrii@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1511123002

Cr-Commit-Position: refs/heads/master@{#32691}

This only introduces the basic support for both SOFT and EAGER deopts in
TurboFan, but doesn't make use of SOFT deopts anywhere yet (there are
some other issues blocking that). Basically every Deoptimize operator
now has a DeoptimizeKind, which can be either kSoft or kEager.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1511883002

Cr-Commit-Position: refs/heads/master@{#32690}

R=littledan@chromium.org
BUG=v8:4342
LOG=N

Review URL: https://codereview.chromium.org/1506173002

Cr-Commit-Position: refs/heads/master@{#32689}

I noticed that using --print-opt-code was producing output unreliably.
Upon investigation, it turns out OFStream's destructor was not marked
virtual. Fixing this fixes the problem, as ostream flushes at destruction.

BUG=

Review URL: https://codereview.chromium.org/1503383003

Cr-Commit-Position: refs/heads/master@{#32688}

Reconstructing which stdlib object is used within an asm.js
module seems wasteful, given the typer has already checked this.
Preserving this information in a form that can be queried in
the asm-wasm-builder which generating code.

BUG= https://code.google.com/p/v8/issues/detail?id=4203
TEST=test-asm-validator, test-parsing
R=titzer@chromium.org,marja@chromium.org,aseemgarg@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1508003002

Cr-Commit-Position: refs/heads/master@{#32687}

  port 72994124(r32675)

  original commit message:

BUG=

Review URL: https://codereview.chromium.org/1502343009

Cr-Commit-Position: refs/heads/master@{#32686}

TEST=
BUG=

Review URL: https://codereview.chromium.org/1503053002

Cr-Commit-Position: refs/heads/master@{#32685}

Instead of iterating the whole map space to find dead transitions,
look in weak cell list and transition array list.

Simple transitions are in the weak cell list.

Full transitions are in the transitions array list.

BUG=chromium:554488
LOG=NO

Review URL: https://codereview.chromium.org/1488593003

Cr-Commit-Position: refs/heads/master@{#32684}

NOTRY=true
TBR=rmcilroy, Hablich

Review URL: https://codereview.chromium.org/1510003002

Cr-Commit-Position: refs/heads/master@{#32683}

BUG=v8:3983
LOG=N
R=wingo@igalia.com, littledan@chromium.org

Review URL: https://codereview.chromium.org/1437803004

Cr-Commit-Position: refs/heads/master@{#32682}

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1506953003

Cr-Commit-Position: refs/heads/master@{#32681}

BUG=

Review URL: https://codereview.chromium.org/1501413005

Cr-Commit-Position: refs/heads/master@{#32680}

This was introduced due to a false positive by the linter script. We
have blacklisted the "build/include_what_you_use" linter bucket in our
presubmit.py wrapper for that reason.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1509843002

Cr-Commit-Position: refs/heads/master@{#32679}

BUG=v8:4134
R=vogelheim@chromium.org
LOG=n
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1505173002

Cr-Commit-Position: refs/heads/master@{#32678}

BUG=v8:4134
R=vogelheim@chromium.org
LOG=n
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1504093003

Cr-Commit-Position: refs/heads/master@{#32677}

BUG=v8:4341
R=vogelheim@chromium.org
LOG=y
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1502353004

Cr-Commit-Position: refs/heads/master@{#32676}

BUG=v8:1543
LOG=N

Review URL: https://codereview.chromium.org/1499593003

Cr-Commit-Position: refs/heads/master@{#32675}

NOTRY=true
NOTREECHECKS=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1502143005

Cr-Commit-Position: refs/heads/master@{#32674}

Use %DeleteProperty_Strict instead.

Review URL: https://codereview.chromium.org/1508743002

Cr-Commit-Position: refs/heads/master@{#32673}

Rolling v8/build/gyp to 70ee80e82bacf2d7816a56f792bb33587b04c338

Rolling v8/tools/clang to 247bb6833987bc73051243230a1f3c949a9c9b92

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review URL: https://codereview.chromium.org/1509093002

Cr-Commit-Position: refs/heads/master@{#32672}

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1508653002

Cr-Commit-Position: refs/heads/master@{#32671}

The Promise::Chain logic is moved to a helper function to avoid
a violation of deprecated function usage.

R=rossberg,jochen
BUG=v8:3237
LOG=Y

Review URL: https://codereview.chromium.org/1477023002

Cr-Commit-Position: refs/heads/master@{#32670}

ECMAScript dates act as if the Gregorian changeover happened at the
beginning of time. This patch fixes up internationalized date
formatting to set that changeover properly, as opposed to the ICU
default which is in the 16th century.

BUG=chromium:537382
R=adamk,cira
LOG=Y

Review URL: https://codereview.chromium.org/1501113002

Cr-Commit-Position: refs/heads/master@{#32669}

TEST=unittests/InstructionSlectorTest.CombineChangeFloat64ToInt32WithRoundFloat64
BUG=

Review URL: https://codereview.chromium.org/1510493002

Cr-Commit-Position: refs/heads/master@{#32668}

Fix some minor issues that the linter is complaining about

R=jochen

Review URL: https://codereview.chromium.org/1507823002

Cr-Commit-Position: refs/heads/master@{#32667}

Deoptimization expects the context and function marker on the stack.
To let the register allocator control spilling of the live ranges
corresponding to these 2 operands, we need their use to be represented
accurately.

BUG= v8:4533
LOG=N

Review URL: https://codereview.chromium.org/1506903002

Cr-Commit-Position: refs/heads/master@{#32666}

Port 0ed08780

Original commit message:
    There's no reason to limit the CompareIC to (known) JSObject instances,
    as all JSReceivers behave the same wrt. abstract and strict equality.
    So remove this historical limitation and track JSReceivers instead.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1506903003

Cr-Commit-Position: refs/heads/master@{#32665}

Port 95844d94

Original commit message:
The new operator provides a second output which indicates whether the
conversion from float64 to int64 was successful or not. The second
output returns 0 if the conversion fails. If the conversion succeeds,
then the second output is differs from 0.

The second output can be ignored, which means that the operator can be
used the same way as the original operator.

I implemented the new operator on x64 and arm64. @v8-mips-ports and
@v8-ppc-ports, can you please take care of the mips64 and ppc64
implementation of the second output?

BUG=
TEST=cctest/test-run-machops/RunTryTruncateFloat64ToInt64WithCheck

Review URL: https://codereview.chromium.org/1503173002

Cr-Commit-Position: refs/heads/master@{#32664}

BUG=v8:811
LOG=N
R=adamk@chromium.org

Review URL: https://codereview.chromium.org/1504553003

Cr-Commit-Position: refs/heads/master@{#32663}

Error still to be done, since that's not yet available in the bootstrapper.

BUG=v8:3900, v8:3931, v8:1543, v8:3330
LOG=n

Review URL: https://codereview.chromium.org/1499923002

Cr-Commit-Position: refs/heads/master@{#32662}

Fixes code size multiplier of Arm64 based on generated code size of Octane.

Review URL: https://codereview.chromium.org/1504023002

Cr-Commit-Position: refs/heads/master@{#32661}

R=rossberg
BUG=

Review URL: https://codereview.chromium.org/1502983002

Cr-Commit-Position: refs/heads/master@{#32660}

BUG=v8:4134
R=vogelheim@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1502193002

Cr-Commit-Position: refs/heads/master@{#32659}

Reviving/redoing littledan's previous CL.

R=nikolaos@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1504833002

Cr-Commit-Position: refs/heads/master@{#32658}

This adds a runtime flag that controls whether the WASM object is
exposed to JavaScript. While currently guarded by the V8_WASM build-time
flag, after landing in V8 the build-time flag will be removed, leaving
only this new runtime flag.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1507623002

Cr-Commit-Position: refs/heads/master@{#32657}

This patch improves escape analysis and fixes bugs
triggered by clusterfuzz. Impovements include:
* Handling of LoadElement/StoreElement if index is a
  constant
* Handling of JSStoreProperty: invalidate all information,
  as the store could have altered any field.
* Treat phis that use an allocation as escaping
* Improve resolution of replacements

R=mstarzinger@chromium.org
BUG=v8:4586
LOG=n

Review URL: https://codereview.chromium.org/1499143002

Cr-Commit-Position: refs/heads/master@{#32656}