I replaced the hidden string with hidden_properties_symbol, so we don't
need the extra hash-check anymore. This is slightly faster anyway.

BUG=

Review URL: https://codereview.chromium.org/1707653003

Cr-Commit-Position: refs/heads/master@{#34086}

Port 0d595bb0

Original commit message:
    It's fine to only have the runtime call here, as it's only used in the
    debug mirror.

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

Review URL: https://codereview.chromium.org/1707683002

Cr-Commit-Position: refs/heads/master@{#34085}

This intrinsic was only supported in fullcodegen, and is actually no
longer relevant for SunSpider peak performance it seems, so let's get
rid of it and maybe just implement Array.prototype.join with a fast
path at some point instead.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1708523002

Cr-Commit-Position: refs/heads/master@{#34084}

This CL introduces two new bytecodes TailCall and TailCallWide.

BUG=v8:4698,v8:4687
LOG=N

Review URL: https://codereview.chromium.org/1698273003

Cr-Commit-Position: refs/heads/master@{#34083}

Revert of More simplification and unification of frame handling (patchset #5 id:80001 of https://codereview.chromium.org/1702593002/ )

Reason for revert:
[Sheriff] Breaks nosnap debug:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/5329

Original issue's description:
> More simplification and unification of frame handling
>
> Frame slots indexes numbers are used more consistently for
> computation in both TurboFan and Crankshaft. Specifically,
> Crankshaft now uses frame slot indexes in LChunk, removing
> the need for some special-case maths when building the
> deoptimization translation table.
>
> LOG=N
> R=mstarzinger@chromium.org
>
> Committed: https://crrev.com/81423b84dbb2eaf7e1a57b0f6029fc8e643b4755
> Cr-Commit-Position: refs/heads/master@{#34078}

TBR=mstarzinger@chromium.org,jarin@chromium.org,danno@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1708583002

Cr-Commit-Position: refs/heads/master@{#34082}

This removes the CompilationInfo field from the BytecodeGraphBuilder
class. The intention is to reduce the risk of using uninitialized or
unavailable values from the CompilationInfo (e.g. values that are only
available after parsing).

R=rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/1704913002

Cr-Commit-Position: refs/heads/master@{#34081}

There's no need to have inline platform code for this intrinsic, which
is only used when generating a descriptive string for an error, the
runtime call is just fine here.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1706743002

Cr-Commit-Position: refs/heads/master@{#34080}

BUG=chromium:535160
LOG=n
TBR=tandrii@chromium.org, kjellander@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1706783002

Cr-Commit-Position: refs/heads/master@{#34079}

Frame slots indexes numbers are used more consistently for
computation in both TurboFan and Crankshaft. Specifically,
Crankshaft now uses frame slot indexes in LChunk, removing
the need for some special-case maths when building the
deoptimization translation table.

LOG=N
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1702593002

Cr-Commit-Position: refs/heads/master@{#34078}

It's dead^Wa runtime call Jim!

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1702313002

Cr-Commit-Position: refs/heads/master@{#34077}

R=machenbach@chromium.org
TBR=danno@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1706753002

Cr-Commit-Position: refs/heads/master@{#34076}

BUG=chromium:535160
LOG=n
TBR=tandrii@chromium.org, kjellander@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1703853002

Cr-Commit-Position: refs/heads/master@{#34075}

R=machenbach@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1704963002

Cr-Commit-Position: refs/heads/master@{#34074}

This removes the language mode parameter from all JSCall operators. The
information is no longer used anywhere and is not threaded through the
interpreter bytecode. We should only thread it through the bytecode if
it has a semantic impact on the compilation.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1709493002

Cr-Commit-Position: refs/heads/master@{#34073}

Everything that HCallStub does can easily be done using the more general
HCallWithDescriptor, so there's no need to have this dedicated
instruction around.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1705633004

Cr-Commit-Position: refs/heads/master@{#34072}

If sweeping is in progress then we need to filter out slots in free space after
array trimming, because the sweeper will add the free space into free list.

This CL also fixes a bug in SlotSet::RemoveRange.

BUG=chromium:587004
LOG=NO
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1701963003

Cr-Commit-Position: refs/heads/master@{#34071}

BUG=

Review URL: https://codereview.chromium.org/1705713002

Cr-Commit-Position: refs/heads/master@{#34070}

Also move Object.is implementation to C++ builtin, which is faster
than the current implementation.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1695743003

Cr-Commit-Position: refs/heads/master@{#34069}

There's no point in having the setup or the toString/valueOf methods in
JavaScript. The full setup can be done during bootstrapping when the
Boolean constructor is created, and the prototype methods don't benefit
from JS + %_ at all.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1701273003

Cr-Commit-Position: refs/heads/master@{#34068}

R=rossberg@chromium.org,bmeurer@chromium.org,verwaest@chromium.org
BUG=v8:3956
LOG=n

Review URL: https://codereview.chromium.org/1700993002

Cr-Commit-Position: refs/heads/master@{#34067}

Port fd8fd05c

Original commit message:
This functionality is useful for stubs that need to walk the stack. The new
machine operator, LoadParentFramePointer doesn't force the currently compiling
method to have a frame in contrast to LoadFramePointer. Instead, it adapts
accordingly when frame elision is possible, making efficient stack walks
possible without incurring a performance penalty for small stubs that can
benefit from frame elision.

BUG=

Review URL: https://codereview.chromium.org/1701933003

Cr-Commit-Position: refs/heads/master@{#34066}

BUG=chromium:535160
LOG=n
TBR=tandrii@chromium.org, kjellander@chromium.org

Review URL: https://codereview.chromium.org/1709503002

Cr-Commit-Position: refs/heads/master@{#34065}

  port fd8fd05c (r34014)

  original commit message:
  This functionality is useful for stubs that need to walk the stack. The new
  machine operator, LoadParentFramePointer dosn't force the currently compiling
  method to have a frame in contrast to LoadFramePointer. Instead, it adapts
  accordingly when frame elision is possible, making efficient stack walks
  possible without incurring a performance penalty for small stubs that can
  benefit from frame elision.

BUG=

Review URL: https://codereview.chromium.org/1705673002

Cr-Commit-Position: refs/heads/master@{#34064}

BUG=

Review URL: https://codereview.chromium.org/1702623002

Cr-Commit-Position: refs/heads/master@{#34063}

  port e0129d0f (r33986)

  original commit message:
  Turn the fast case of ArgumentsAccessStub into a new stub
  FastNewSloppyArgumentsStub, which is similar to the existing
  FastNewStrictArgumentsStub, although not polished yet, and the slow
  case always went to the runtime anyway, so we can just directly emit
  a runtime call there.

BUG=

Review URL: https://codereview.chromium.org/1701983004

Cr-Commit-Position: refs/heads/master@{#34062}

CPU profiler probes stack frame to find if it's in a valid
state. Under simulator it might happen the frame is not
initialized and MSAN repors that. That's totally ok.
Suppress the warning.

BUG=v8:4751
LOG=N

Review URL: https://codereview.chromium.org/1700533003

Cr-Commit-Position: refs/heads/master@{#34061}

Minor improvements measured through by https://github.com/kpdecker/six-speed/blob/master/tests/object-assign/object-assign.es6. Mostly due to inlining of NowContains on the FieldType

Review URL: https://codereview.chromium.org/1703513002

Cr-Commit-Position: refs/heads/master@{#34060}

Some parts of the wrapped scripts seem to expect cwd to be
the v8 directory.

BUG=chromium:535160
LOG=n
TBR=tandrii@chromium.org, kjellander@chromium.org, mstarzinger@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1700963003

Cr-Commit-Position: refs/heads/master@{#34059}

BUG=v8:4680
LOG=N

Review URL: https://codereview.chromium.org/1700143002

Cr-Commit-Position: refs/heads/master@{#34058}

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1704833002

Cr-Commit-Position: refs/heads/master@{#34057}

It's fine to only have the runtime call here, as it's only used in the
debug mirror.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1699133002

Cr-Commit-Position: refs/heads/master@{#34056}

  port 09d84535(r33925)

  original commit message:
  The FastNewStrictArgumentsStub is very similar to the recently added
  FastNewRestParameterStub, it's actually almost a copy of it, except that
  it doesn't have the fast case we have for the empty rest parameter. This
  patch improves strict arguments in TurboFan and fullcodegen by up to 10x
  compared to the previous version.

  Also introduce proper JSSloppyArgumentsObject and JSStrictArgumentsObject
  for the in-object properties instead of having them as constants in the
  Heap class.

  Drive-by-fix: Use this stub and the FastNewRestParameterStub in the
  interpreter to avoid the runtime call overhead for strict arguments
  and rest parameter creation.

BUG=

Review URL: https://codereview.chromium.org/1706703002

Cr-Commit-Position: refs/heads/master@{#34055}

  port e519e6fa(r33886)

  original commit message:
  1) Update profiling counters in Full codegen.
  2) Call Runtime::kTraceTailCall when tracing is on

  test/mjsunit/es6/tail-call-simple.js is disabled for now, because Turbofan does not fully support TCO yet.

BUG=

Review URL: https://codereview.chromium.org/1706673002

Cr-Commit-Position: refs/heads/master@{#34054}

Rolling v8/build/gyp to ed163ce233f76a950dce1751ac851dbe4b1c00cc

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

Review URL: https://codereview.chromium.org/1700073004

Cr-Commit-Position: refs/heads/master@{#34053}

BUG=

Review URL: https://codereview.chromium.org/1700043004

Cr-Commit-Position: refs/heads/master@{#34052}

BUG=
LOG=N
R=adamk@chromium.org, littledan@chromium.org

Review URL: https://codereview.chromium.org/1702853002

Cr-Commit-Position: refs/heads/master@{#34051}

BUG=v8:4756
LOG=N
R=adamk@chromium.org, littledan@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/1700123003

Cr-Commit-Position: refs/heads/master@{#34050}

Port fd8fd05c

Original commit message:
    This functionality is useful for stubs that need to walk the stack. The new
    machine operator, LoadParentFramePointer dosn't force the currently compiling
    method to have a frame in contrast to LoadFramePointer. Instead, it adapts
    accordingly when frame elision is possible, making efficient stack walks
    possible without incurring a performance penalty for small stubs that can
    benefit from frame elision.

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

Review URL: https://codereview.chromium.org/1700323002

Cr-Commit-Position: refs/heads/master@{#34049}

The parser can fold together comma separated declarations
into a single block. The AsmWasmBuilder needs to support
this case in order to handle asm.js modules that use this form.

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

Review URL: https://codereview.chromium.org/1697423003

Cr-Commit-Position: refs/heads/master@{#34048}

This avoids spending lots of time in Scope::RemoveUnresolved for very long
variable declaration lists.

BUG=v8:4699
LOG=n

Review URL: https://codereview.chromium.org/1655313003

Cr-Commit-Position: refs/heads/master@{#34047}