[es6] Function.prototype.name should be the empty string

[es6] Function.prototype.name should be the empty string

ES6 specifies the function name property (it was not part of ES5) and
it specifies the name of Function.prototype to the empty string ("" and
not "Empty"). This makes us match Firefox, Safari and IE developer
preview.

BUG=v8:4033
LOG=N
R=adamk@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel

Committed: https://crrev.com/d0db1c39cab264339ed32ea63912b7e814a24993
Cr-Commit-Position: refs/heads/master@{#28021}

[arv (Not doing code reviews), 2015-04-21 19:57:20]

PTAL

[adamk, 2015-04-21 20:02:54]

lgtm

Did you find any history of how this happened?

[arv (Not doing code reviews), 2015-04-21 20:25:57]

On 2015/04/21 20:02:54, adamk wrote:
> lgtm
> 
> Did you find any history of how this happened?

AFAICT we always used Empty. (I checked 0.1.5)

[arv (Not doing code reviews), 2015-04-21 20:26:01]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-04-21 20:26:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1080393004/1

[adamk, 2015-04-21 23:15:48]

Sigh, looks like Blink tests encode this, as the __proto__ of functions that get
pretty-printed.

[adamk, 2015-04-21 23:15:52]

The CQ bit was unchecked by adamk@chromium.org

[arv (Not doing code reviews), 2015-04-21 23:17:25]

On 2015/04/21 23:15:48, adamk wrote:
> Sigh, looks like Blink tests encode this, as the __proto__ of functions that
get
> pretty-printed.

That is why I added that bot :-)

[arv (Not doing code reviews), 2015-04-22 16:56:37]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-04-22 16:57:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1080393004/1

[arv (Not doing code reviews), 2015-04-22 19:42:58]

The CQ bit was unchecked by arv@chromium.org

[arv (Not doing code reviews), 2015-04-22 23:03:21]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-04-22 23:04:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1080393004/1

[commit-bot: I haz the power, 2015-04-23 00:29:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-23 00:30:02]

Patchset 1 (id:??) landed as
https://crrev.com/d0db1c39cab264339ed32ea63912b7e814a24993
Cr-Commit-Position: refs/heads/master@{#28021}