Reland "[es6] Fix Function and GeneratorFunction built-ins subclassing."

Reland "[es6] Fix Function and GeneratorFunction built-ins subclassing."

Original issue's description:
> [es6] Fix Function and GeneratorFunction built-ins subclassing.
>
> BUG=v8:3101, v8:3330
> LOG=Y
>
> Committed: https://crrev.com/99e7f872d3d0a5fb799dcbafb05537cda491314a
> Cr-Commit-Position: refs/heads/master@{#31708}

The problem was in another CL, this is a clean reland with improved tests.

BUG=v8:3101, v8:3330
LOG=Y

Committed: https://crrev.com/babe50f083baf0cf1afa3106f616729f3ae940d7
Cr-Commit-Position: refs/heads/master@{#31756}

[Igor Sheludko, 2015-11-02 19:52:36]

The CQ bit was checked by ishell@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-11-02 19:52:44]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1415683007/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1415683007/20001

[Igor Sheludko, 2015-11-02 19:53:42]

ishell@chromium.org changed reviewers:
+ verwaest@chromium.org

[Igor Sheludko, 2015-11-02 19:53:42]

PTAL

The problem that caused issues with this CL is addressed here:
https://codereview.chromium.org/1431593003/

[Igor Sheludko, 2015-11-02 19:54:30]

PTAL
 
The problem that caused issues with this CL is addressed here:
https://codereview.chromium.org/1431593003/

This is a clean reland, I just updated tests a bit.

[commit-bot: I haz the power, 2015-11-02 20:14:16]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-11-02 20:14:17]

Dry run: Try jobs failed on following builders:
  v8_linux_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_rel/builds/11278)

[Toon Verwaest, 2015-11-03 11:59:40]

lgtm

[Igor Sheludko, 2015-11-03 14:30:31]

Patchset #3 (id:40001) has been deleted

[Igor Sheludko, 2015-11-03 16:23:02]

The CQ bit was checked by ishell@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-11-03 16:23:06]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1415683007/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1415683007/20001

[commit-bot: I haz the power, 2015-11-03 16:40:10]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-11-03 16:40:10]

Dry run: This issue passed the CQ dry run.

[Igor Sheludko, 2015-11-03 16:40:43]

The CQ bit was checked by ishell@chromium.org

[commit-bot: I haz the power, 2015-11-03 16:40:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1415683007/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1415683007/20001

[commit-bot: I haz the power, 2015-11-03 16:42:26]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-03 16:42:51]

Patchset 2 (id:??) landed as
https://crrev.com/babe50f083baf0cf1afa3106f616729f3ae940d7
Cr-Commit-Position: refs/heads/master@{#31756}