Revert of Fix JSON parser Handle leak (patchset #3 id:40001 of https://codereview.chromium.org/1041483004/)

Reason for revert:
Reverting due to JSOn parser failures

Original issue's description:
> Fix JSON parser Handle leak
>
> R=verwaest@chromium.org
> BUG=v8:3976
> LOG=y
>
> Committed: https://crrev.com/1ec850383bb82f6d8bebc7416e5f50b649d1eeaa
> Cr-Commit-Position: refs/heads/master@{#27512}

TBR=verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3976

Review URL: https://codereview.chromium.org/1052593002

Cr-Commit-Position: refs/heads/master@{#27562}

Revert of Relax assert a little to fix flake on regress-3976 (patchset #1 id:1 of https://codereview.chromium.org/1045763002/)

Reason for revert:
Reverting due to JSOn parser failures

Original issue's description:
> Relax assert a little to fix flake on regress-3976
>
> R=verwaest@chromium.org
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/b20edd7772892ff8b2b280b35e521fbc2cc4a5f6
> Cr-Commit-Position: refs/heads/master@{#27515}

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

Review URL: https://codereview.chromium.org/1050033003

Cr-Commit-Position: refs/heads/master@{#27561}

Cr-Commit-Position: refs/heads/master@{#27560}

This commit is to fix the linking error:
  ../../v8/src/base/platform/platform-posix.cc:418: error: undefined reference to '__android_log_vprint'

Review URL: https://codereview.chromium.org/1037193003

Cr-Commit-Position: refs/heads/master@{#27559}

This reverts commit 992751d0.

The final spec for Object.getPrototypeOf calls ToObject on the
parameter, which means that it should only throw for null and
undefined. For other non object values the prototype of the wrapper
should be used.

Difference from last time: Updated .status and will disable Blink
side tests as needed.

BUG=v8:3964
LOG=N
R=adamk, rossberg@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1051523003

Cr-Commit-Position: refs/heads/master@{#27558}

It triggers once per context that calls observe (or attempts to access
any observation metadata, e.g. through Object.getNotifier).

Review URL: https://codereview.chromium.org/1048213002

Cr-Commit-Position: refs/heads/master@{#27557}

TEST=test-assembler-mips/MIPS16
BUG=

Review URL: https://codereview.chromium.org/1047223002

Cr-Commit-Position: refs/heads/master@{#27556}

Port 7c347c54

BUG=

Review URL: https://codereview.chromium.org/1049793002

Cr-Commit-Position: refs/heads/master@{#27555}

In DevTools we've already used sourceURL in inline scripts.
This CL makes the behavior of the V8 in the same for Error.stack property and v8::StackTrace.

BUG=v8:3920
LOG=Y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1044173002

Cr-Commit-Position: refs/heads/master@{#27554}

Lack of sign extension on simulator builds gives bad value for
RETRY and EXCEPTION codes.

TEST=mjsunit/regexp-stack-overflow, regress-crbug-467047
BUG=v8:3992
LOG=n

Review URL: https://codereview.chromium.org/1040753003

Cr-Commit-Position: refs/heads/master@{#27553}

Port 7c347c54

Original commit message:
A bug allows JSObject literals with elements to have the elements in the
boilerplate modified.

R=mbrandy@us.ibm.com

BUG=466993
LOG=N

Review URL: https://codereview.chromium.org/1046223002

Cr-Commit-Position: refs/heads/master@{#27552}

Add missing parts of the port to MIPS/MIPS64 implementations.

BUG=

Review URL: https://codereview.chromium.org/1047213002

Cr-Commit-Position: refs/heads/master@{#27551}

Embedders should use IdleNotificationDeadline()

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

Review URL: https://codereview.chromium.org/1019793008

Cr-Commit-Position: refs/heads/master@{#27550}

BUG=

Review URL: https://codereview.chromium.org/1050543002

Cr-Commit-Position: refs/heads/master@{#27549}

The spec settled on ToBoolean instead of only using not undefined.

BUG=v8:3827
LOG=N
R=adamk

Review URL: https://codereview.chromium.org/1045113002

Cr-Commit-Position: refs/heads/master@{#27548}

Port 8dad78cd

Original commit message:
This adds the basics necessary to support float32 operations in TurboFan.
The actual functionality required to detect safe float32 operations will
be added based on this later. Therefore this does not affect production
code except for some cleanup/refactoring.

In detail, this patchset contains the following features:
- Add support for float32 operations to arm, arm64, ia32 and x64
  backends.
- Add float32 machine operators.
- Add support for float32 constants to simplified lowering.
- Handle float32 representation for phis in simplified lowering.

In addition, contains the following (related) cleanups:
- Fix/unify naming of backend instructions.
- Use AVX comparisons when available.
- Extend ArchOpcodeField to 9 bits (required for arm64).
- Refactor some code duplication in instruction selectors.

BUG=v8:3589
LOG=N

R=mbrandy@us.ibm.com

Review URL: https://codereview.chromium.org/1049253004

Cr-Commit-Position: refs/heads/master@{#27547}

This ensures that all expressions that throw actually mark the current
environment as dead in the AstGraphBuilder. This prevents live ranges
from being unnecessarily increased by paths that don't fall-through.
Note that we can do that because Runtime::kThrowFoo never returns.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/1049203002

Cr-Commit-Position: refs/heads/master@{#27546}

We have been shipping harmony numeric literals since M41

R=rossberg@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/1024603002

Cr-Commit-Position: refs/heads/master@{#27545}

BUG=chromium:450824
LOG=NO
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1048013003

Cr-Commit-Position: refs/heads/master@{#27544}

Second try. Disabled the tests that were failing due to
https://github.com/tc39/test262/issues/215

This updates test262 to revision d24fd10 (2015/03/11).

The files moved around in the test repo and a lot of new tests are
failing.

BUG=None
LOG=N
R=adamk, rossberg

Review URL: https://codereview.chromium.org/1040093003

Cr-Commit-Position: refs/heads/master@{#27543}

BUG=chromium:472078
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1047173002

Cr-Commit-Position: refs/heads/master@{#27542}

This changes the IrOpcode::kThrow operator to have kNoThrow property,
which sounds unintuitive, but holds for our graphs. The operators is
used to indicate exceptional control flow out of the function, but in
itself does not throw, the throwing is done by a runtime call.

R=titzer@chromium.org
TEST=unittests/CommonOperatorTest/CommonSharedOperatorTest.Properties

Review URL: https://codereview.chromium.org/1046173002

Cr-Commit-Position: refs/heads/master@{#27541}

Currently this only sets branch hints, so we get unlikely code "out of
the way", but in the long run the register allocator needs some love
to treat the unlikely code as, well, unlikely. :-)

Review URL: https://codereview.chromium.org/1048063002

Cr-Commit-Position: refs/heads/master@{#27540}

BUG=chromium:471554
LOG=y
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1050493002

Cr-Commit-Position: refs/heads/master@{#27539}

R=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1041163002

Cr-Commit-Position: refs/heads/master@{#27538}

TEST=cctest/test-run-jsexceptions

Review URL: https://codereview.chromium.org/989123003

Cr-Commit-Position: refs/heads/master@{#27537}

BUG=

Review URL: https://codereview.chromium.org/1040183004

Cr-Commit-Position: refs/heads/master@{#27536}

The libdl library is already included on target builds of Android and needs
to be added to the build command line with a particular order to avoid
undefined references in other libraries. Fix this by only explicitly including
it in host builds and relying on the implicit inclusion on target builds.

Also remove the librt hack which is not longer necessary due to the AOSP build
bot having been removed.

BUG=chromium:469973
LOG=Y

Review URL: https://codereview.chromium.org/1036133005

Cr-Commit-Position: refs/heads/master@{#27535}

Port 8dad78cd

Original commit message:
This adds the basics necessary to support float32 operations in TurboFan.
The actual functionality required to detect safe float32 operations will
be added based on this later. Therefore this does not affect production
code except for some cleanup/refactoring.

In detail, this patchset contains the following features:
- Add support for float32 operations to arm, arm64, ia32 and x64
  backends.
- Add float32 machine operators.
- Add support for float32 constants to simplified lowering.
- Handle float32 representation for phis in simplified lowering.

In addition, contains the following (related) cleanups:
- Fix/unify naming of backend instructions.
- Use AVX comparisons when available.
- Extend ArchOpcodeField to 9 bits (required for arm64).
- Refactor some code duplication in instruction selectors.

BUG=

Review URL: https://codereview.chromium.org/1045203003

Cr-Commit-Position: refs/heads/master@{#27534}

Because simulators have a seperate JavaScript and C++ stack, and
because they try to avoid calling the runtime StackCheck function
on entry to every function, it can happen in recursive calls that
the C++ stack overflows while the JavaScript stack is okay. The
runtime StackCheck function would catch this, but as an optimization,
generated code only looks at the JavaScript stack pointer to
determine if it should make that runtime call.

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1050433002

Cr-Commit-Position: refs/heads/master@{#27533}

Rolling v8/third_party/icu to 46be516de5c83aa0b7b3b75be669b48e7a803290

Rolling v8/tools/clang to 6aa9a498bf4c1567efe9b78da82678ed1e8e3298

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1046053003

Cr-Commit-Position: refs/heads/master@{#27532}

Port 8dad78cd

Original commit message:
This adds the basics necessary to support float32 operations in TurboFan.
The actual functionality required to detect safe float32 operations will
be added based on this later. Therefore this does not affect production
code except for some cleanup/refactoring.

In detail, this patchset contains the following features:
- Add support for float32 operations to arm, arm64, ia32 and x64
  backends.
- Add float32 machine operators.
- Add support for float32 constants to simplified lowering.
- Handle float32 representation for phis in simplified lowering.

In addition, contains the following (related) cleanups:
- Fix/unify naming of backend instructions.
- Use AVX comparisons when available.
- Extend ArchOpcodeField to 9 bits (required for arm64).
- Refactor some code duplication in instruction selectors.

BUG=v8:3589
LOG=n

Review URL: https://codereview.chromium.org/1046953004

Cr-Commit-Position: refs/heads/master@{#27531}

TEST=
BUG=

Review URL: https://codereview.chromium.org/1046873004

Cr-Commit-Position: refs/heads/master@{#27530}

The V8::IdleNotification will only return 'True' when the gc idle time handler
thinks there is no more GC which can be done. However, the gc idle task handler
can end up repeatedly making no progress (e.g., if it can't finalize a sweep)
which causes idle tasks to be repeatedly scheduled in Chrome which do nothing
but wake up Chrome. Fix this by returning Done if we can't make any progress
within an Idle Round.

BUG=chromium:470615
LOG=Y

Review URL: https://codereview.chromium.org/1042483002

Cr-Commit-Position: refs/heads/master@{#27529}

BUG=chromium:470804
LOG=Y

Review URL: https://codereview.chromium.org/1033273005

Cr-Commit-Position: refs/heads/master@{#27528}

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1033033002

Cr-Commit-Position: refs/heads/master@{#27527}

We only report the usages when full parse is happening, i.e. only when the function that declares a legacy const is compiled. This is an approximation that is easy to implement, but still should reflect the real-world usage.

BUG=v8:3942
LOG=N

Review URL: https://codereview.chromium.org/1041863002

Cr-Commit-Position: refs/heads/master@{#27526}

Revert of [es6] Update test262 tests (patchset #4 id:60001 of https://codereview.chromium.org/1025043002/)

Reason for revert:
Bot failed to include verifyNotEnumerable function for some screwed up reason.

Original issue's description:
> [es6] Update test262 tests
>
> This updates test262 to revision d24fd10 (2015/03/11).
>
> The files moved around in the test repo and a lot of new tests are
> failing.
>
> BUG=None
> LOG=N
> R=rossberg
>
> Committed: https://crrev.com/4f2fb3835feff3663146f12be42b01a226d0065e
> Cr-Commit-Position: refs/heads/master@{#27522}

TBR=rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=None

Review URL: https://codereview.chromium.org/1047713002

Cr-Commit-Position: refs/heads/master@{#27525}

This test will fail once we optimize top-level code, because the
aforementioned intrinsic doesn't perform a NumberToUint32 conversion.

R=titzer@chromium.org
TEST=mjsunit/asm/math-clz32

Review URL: https://codereview.chromium.org/1041173002

Cr-Commit-Position: refs/heads/master@{#27524}

This prepares for re-landing crrev.com/956373002

This pulls all decision about the snapshot [no|internal|external] into one rule. Previously, this logic was in separate places and not /quite/ the same, which causes build problems.

BUG=

Review URL: https://codereview.chromium.org/1016603004

Cr-Commit-Position: refs/heads/master@{#27523}