Reland of [keys] Simplify KeyAccumulator

Reland of [keys] Simplify KeyAccumulator (patchset #1 id:1 of https://codereview.chromium.org/2010593002/ )

Reason for revert:
relanding, fixed handle dereferencing

Original issue's description:
> Revert of [keys] Simplify KeyAccumulator (patchset #15 id:280001 of https://codereview.chromium.org/1995263002/ )
>
> Reason for revert:
> https://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/6248
>
> Original issue's description:
> > [keys] Simplify KeyAccumulator
> >
> > - Use KeyAccumulator::GetKeys directly instead of JSReceiver::GetKeys
> > - Revert KeyAccumulator to single OrderedHashSet implementation.
> > - Convert the OrderedHashSet in-place to a FixedArray
> > - IndexedInterceptor indices are no longer combined and sorted with the object indices
> >
> > BUG=
> >
> > Committed: https://crrev.com/d3324df017046bcde247a5aef6d1b59bfae5908f
> > Cr-Commit-Position: refs/heads/master@{#36485}
>
> TBR=jkummerow@chromium.org,verwaest@chromium.org,cbruni@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/893524b53d43df63bca6cb9b7244d21771fadb0b
> Cr-Commit-Position: refs/heads/master@{#36486}

TBR=jkummerow@chromium.org,verwaest@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/667188b1a782b26b71f80320c92b86fedcd382bc
Cr-Commit-Position: refs/heads/master@{#36502}

[Camillo Bruni, 2016-05-25 09:11:53]

Created Reland of [keys] Simplify KeyAccumulator

[Camillo Bruni, 2016-05-25 09:13:11]

The CQ bit was checked by cbruni@chromium.org

[commit-bot: I haz the power, 2016-05-25 09:13:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2014523002/270001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2014523002/270001

[commit-bot: I haz the power, 2016-05-25 09:13:39]

Committed patchset #2 (id:270001)

[commit-bot: I haz the power, 2016-05-25 09:14:00]

Description was changed from

==========
Reland of [keys] Simplify KeyAccumulator (patchset #1 id:1 of
https://codereview.chromium.org/2010593002/ )

Reason for revert:
relanding, fixed handle dereferencing

Original issue's description:
> Revert of [keys] Simplify KeyAccumulator (patchset #15 id:280001 of
https://codereview.chromium.org/1995263002/ )
> 
> Reason for revert:
>
https://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds...
> 
> Original issue's description:
> > [keys] Simplify KeyAccumulator
> >
> > - Use KeyAccumulator::GetKeys directly instead of JSReceiver::GetKeys
> > - Revert KeyAccumulator to single OrderedHashSet implementation.
> > - Convert the OrderedHashSet in-place to a FixedArray
> > - IndexedInterceptor indices are no longer combined and sorted with the
object indices
> >
> > BUG=
> >
> > Committed: https://crrev.com/d3324df017046bcde247a5aef6d1b59bfae5908f
> > Cr-Commit-Position: refs/heads/master@{#36485}
> 
> TBR=jkummerow@chromium.org,verwaest@chromium.org,cbruni@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
> 
> Committed: https://crrev.com/893524b53d43df63bca6cb9b7244d21771fadb0b
> Cr-Commit-Position: refs/heads/master@{#36486}

TBR=jkummerow@chromium.org,verwaest@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Reland of [keys] Simplify KeyAccumulator (patchset #1 id:1 of
https://codereview.chromium.org/2010593002/ )

Reason for revert:
relanding, fixed handle dereferencing

Original issue's description:
> Revert of [keys] Simplify KeyAccumulator (patchset #15 id:280001 of
https://codereview.chromium.org/1995263002/ )
>
> Reason for revert:
>
https://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds...
>
> Original issue's description:
> > [keys] Simplify KeyAccumulator
> >
> > - Use KeyAccumulator::GetKeys directly instead of JSReceiver::GetKeys
> > - Revert KeyAccumulator to single OrderedHashSet implementation.
> > - Convert the OrderedHashSet in-place to a FixedArray
> > - IndexedInterceptor indices are no longer combined and sorted with the
object indices
> >
> > BUG=
> >
> > Committed: https://crrev.com/d3324df017046bcde247a5aef6d1b59bfae5908f
> > Cr-Commit-Position: refs/heads/master@{#36485}
>
> TBR=jkummerow@chromium.org,verwaest@chromium.org,cbruni@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/893524b53d43df63bca6cb9b7244d21771fadb0b
> Cr-Commit-Position: refs/heads/master@{#36486}

TBR=jkummerow@chromium.org,verwaest@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/667188b1a782b26b71f80320c92b86fedcd382bc
Cr-Commit-Position: refs/heads/master@{#36502}
==========

[commit-bot: I haz the power, 2016-05-25 09:14:01]

Patchset 2 (id:??) landed as
https://crrev.com/667188b1a782b26b71f80320c92b86fedcd382bc
Cr-Commit-Position: refs/heads/master@{#36502}

[Jakob Kummerow, 2016-05-25 09:55:48]

LGTM. Please remember to clean up the auto-generated CL description next time
;-)