Make Date.prototype.toGMTString an alias for Date.prototype.toUTCString

Make Date.prototype.toGMTString an alias for Date.prototype.toUTCString

In ES2015, Date.prototype.toGMTString is simply an alias of
Date.prototype.toUTCString, so it has the same identity as a function and
doesn't have its own name. Firefox has already shipped this behavior.
Previously, we copied JSC behavior by making it a separate function.
This change makes an addition test262 test pass.

BUG=v8:4708
LOG=Y
R=adamk

Committed: https://crrev.com/44f9c6a63874a838e6c9cc2858cdbd34884fd4db
Cr-Commit-Position: refs/heads/master@{#34131}

[Dan Ehrenberg, 2016-02-19 00:54:35]

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

[commit-bot: I haz the power, 2016-02-19 00:54:40]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1709373002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1709373002/1

[Dan Ehrenberg, 2016-02-19 00:55:13]

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

[commit-bot: I haz the power, 2016-02-19 00:55:22]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1709373002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1709373002/20001

[commit-bot: I haz the power, 2016-02-19 01:12:06]

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

[commit-bot: I haz the power, 2016-02-19 01:12:07]

Dry run: Try jobs failed on following builders:
  v8_win64_rel_ng on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_win64_rel_ng/builds/3154)
  v8_win64_rel_ng_triggered on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_win64_rel_ng_triggered/b...)

[Dan Ehrenberg, 2016-02-19 01:25:56]

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

[commit-bot: I haz the power, 2016-02-19 01:26:04]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1709373002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1709373002/40001

[commit-bot: I haz the power, 2016-02-19 02:13:23]

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

[commit-bot: I haz the power, 2016-02-19 02:13:24]

Dry run: This issue passed the CQ dry run.

[adamk, 2016-02-19 02:16:38]

lgtm

For the record, JSC still appears to have the old behavior.

[Dan Ehrenberg, 2016-02-19 02:17:02]

The CQ bit was checked by littledan@chromium.org

[commit-bot: I haz the power, 2016-02-19 02:17:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1709373002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1709373002/40001

[commit-bot: I haz the power, 2016-02-19 02:18:54]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-02-19 02:19:03]

Description was changed from

==========
Make Date.prototype.toGMTString an alias for Date.prototype.toUTCString

In ES2015, Date.prototype.toGMTString is simply an alias of
Date.prototype.toUTCString, so it has the same identity as a function and
doesn't have its own name. Firefox has already shipped this behavior.
Previously, we copied JSC behavior by making it a separate function.
This change makes an addition test262 test pass.

BUG=v8:4708
LOG=Y
R=adamk
==========

to

==========
Make Date.prototype.toGMTString an alias for Date.prototype.toUTCString

In ES2015, Date.prototype.toGMTString is simply an alias of
Date.prototype.toUTCString, so it has the same identity as a function and
doesn't have its own name. Firefox has already shipped this behavior.
Previously, we copied JSC behavior by making it a separate function.
This change makes an addition test262 test pass.

BUG=v8:4708
LOG=Y
R=adamk

Committed: https://crrev.com/44f9c6a63874a838e6c9cc2858cdbd34884fd4db
Cr-Commit-Position: refs/heads/master@{#34131}
==========

[commit-bot: I haz the power, 2016-02-19 02:19:04]

Patchset 3 (id:??) landed as
https://crrev.com/44f9c6a63874a838e6c9cc2858cdbd34884fd4db
Cr-Commit-Position: refs/heads/master@{#34131}

[Benedikt Meurer, 2016-02-19 04:47:40]

bmeurer@chromium.org changed reviewers:
+ bmeurer@chromium.org

[Benedikt Meurer, 2016-02-19 04:47:41]

Nice!