Reland of [proxies] Make Object.prototype.isPrototypeOf work with proxies.

Reland of [proxies] Make Object.prototype.isPrototypeOf work with proxies. (patchset #1 id:1 of https://codereview.chromium.org/1494283002/ )

Reason for revert:
Did not help...

Original issue's description:
> Revert of [proxies] Make Object.prototype.isPrototypeOf work with proxies. (patchset #2 id:20001 of https://codereview.chromium.org/1492863002/ )
>
> Reason for revert:
> [Sheriff] Speculative revert for:
> https://uberchromegw.corp.google.com/i/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/3225
>
> Can just be relanded if it doesn't get green.
>
> Original issue's description:
> > [proxies] Make Object.prototype.isPrototypeOf step into proxies.
> >
> > R=rossberg, verwaest@chromium.org
> > BUG=v8:1543
> > LOG=n
> >
> > Committed: https://crrev.com/4ca1180d2e7c409312ae0761cb12843989466573
> > Cr-Commit-Position: refs/heads/master@{#32569}
>
> TBR=rossberg@chromium.org,verwaest@chromium.org,neis@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:1543
>
> Committed: https://crrev.com/48fba9439f291edd5929e19951262dc7e8a09609
> Cr-Commit-Position: refs/heads/master@{#32588}

TBR=rossberg@chromium.org,verwaest@chromium.org,neis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:1543
Committed: https://crrev.com/2cb40dc722340035c7d4c57449a420a315b0e7e0
Cr-Commit-Position: refs/heads/master@{#32598}

[Michael Achenbach, 2015-12-04 06:38:26]

Created Reland of [proxies] Make Object.prototype.isPrototypeOf work with
proxies.

[commit-bot: I haz the power, 2015-12-04 06:38:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1491743010/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1491743010/1

[commit-bot: I haz the power, 2015-12-04 06:38:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-04 06:39:25]

Description was changed from

==========
Reland of [proxies] Make Object.prototype.isPrototypeOf work with proxies.
(patchset #1 id:1 of https://codereview.chromium.org/1494283002/ )

Reason for revert:
Did not help...

Original issue's description:
> Revert of [proxies] Make Object.prototype.isPrototypeOf work with proxies.
(patchset #2 id:20001 of https://codereview.chromium.org/1492863002/ )
> 
> Reason for revert:
> [Sheriff] Speculative revert for:
>
https://uberchromegw.corp.google.com/i/client.v8.fyi/builders/V8-Blink%20Linu...
> 
> Can just be relanded if it doesn't get green.
> 
> Original issue's description:
> > [proxies] Make Object.prototype.isPrototypeOf step into proxies.
> >
> > R=rossberg, verwaest@chromium.org
> > BUG=v8:1543
> > LOG=n
> >
> > Committed: https://crrev.com/4ca1180d2e7c409312ae0761cb12843989466573
> > Cr-Commit-Position: refs/heads/master@{#32569}
> 
> TBR=rossberg@chromium.org,verwaest@chromium.org,neis@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:1543
> 
> Committed: https://crrev.com/48fba9439f291edd5929e19951262dc7e8a09609
> Cr-Commit-Position: refs/heads/master@{#32588}

TBR=rossberg@chromium.org,verwaest@chromium.org,neis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:1543
==========

to

==========
Reland of [proxies] Make Object.prototype.isPrototypeOf work with proxies.
(patchset #1 id:1 of https://codereview.chromium.org/1494283002/ )

Reason for revert:
Did not help...

Original issue's description:
> Revert of [proxies] Make Object.prototype.isPrototypeOf work with proxies.
(patchset #2 id:20001 of https://codereview.chromium.org/1492863002/ )
>
> Reason for revert:
> [Sheriff] Speculative revert for:
>
https://uberchromegw.corp.google.com/i/client.v8.fyi/builders/V8-Blink%20Linu...
>
> Can just be relanded if it doesn't get green.
>
> Original issue's description:
> > [proxies] Make Object.prototype.isPrototypeOf step into proxies.
> >
> > R=rossberg, verwaest@chromium.org
> > BUG=v8:1543
> > LOG=n
> >
> > Committed: https://crrev.com/4ca1180d2e7c409312ae0761cb12843989466573
> > Cr-Commit-Position: refs/heads/master@{#32569}
>
> TBR=rossberg@chromium.org,verwaest@chromium.org,neis@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:1543
>
> Committed: https://crrev.com/48fba9439f291edd5929e19951262dc7e8a09609
> Cr-Commit-Position: refs/heads/master@{#32588}

TBR=rossberg@chromium.org,verwaest@chromium.org,neis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:1543

Committed: https://crrev.com/2cb40dc722340035c7d4c57449a420a315b0e7e0
Cr-Commit-Position: refs/heads/master@{#32598}
==========

[commit-bot: I haz the power, 2015-12-04 06:39:26]

Patchset 1 (id:??) landed as
https://crrev.com/2cb40dc722340035c7d4c57449a420a315b0e7e0
Cr-Commit-Position: refs/heads/master@{#32598}