Add @@iterator, .entries(), .values(), .keys() support to typed arrays

Add @@iterator, .entries(), .values(), .keys() support to typed arrays

R=arv@chromium.org, rossberg@chromium.org
BUG=

Committed: https://code.google.com/p/v8/source/detail?r=21999

[wingo, 2014-06-17 14:15:52]

Depends on the Array.prototype[Symbol.iterator] patch here:
  https://codereview.chromium.org/338323003/

[arv (Not doing code reviews), 2014-06-17 15:41:26]

LGTM

[rossberg, 2014-06-18 09:38:02]

lgtm

https://codereview.chromium.org/336403002/diff/1/src/array-iterator.js
File src/array-iterator.js (right):

https://codereview.chromium.org/336403002/diff/1/src/array-iterator.js#newcod...
src/array-iterator.js:150: %SetProperty(global.NAME.prototype, 'entries',
ArrayEntries, DONT_ENUM);
Why do you need. 'global.' here?

[wingo, 2014-06-25 07:52:01]

>
https://codereview.chromium.org/336403002/diff/1/src/array-iterator.js#newcod...
> src/array-iterator.js:150: %SetProperty(global.NAME.prototype, 'entries',
> ArrayEntries, DONT_ENUM);
> Why do you need. 'global.' here?

Thinko.  It's better as $NAME.  Good catch.

[wingo, 2014-06-25 08:47:01]

Committed patchset #1 manually as r21999 (presubmit successful).