Implement %TypedArray%.prototype.{toString,toLocaleString,join}

Implement %TypedArray%.prototype.{toString,toLocaleString,join}

Implementations factored out from Array. Tests are derived from
normal array toString tests.

BUG=v8:3578
LOG=Y
R=adamk

Committed: https://crrev.com/4f9df26b09b997d40910eeaad1e6d627f11f591d
Cr-Commit-Position: refs/heads/master@{#28766}

[dehrenberg, 2015-06-02 17:10:31]

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

[commit-bot: I haz the power, 2015-06-02 17:11:04]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1166623004/1

[commit-bot: I haz the power, 2015-06-02 17:11:05]

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

[commit-bot: I haz the power, 2015-06-02 17:11:06]

Dry run: No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[adamk, 2015-06-02 17:18:20]

https://codereview.chromium.org/1166623004/diff/1/src/harmony-typedarray.js
File src/harmony-typedarray.js (right):

https://codereview.chromium.org/1166623004/diff/1/src/harmony-typedarray.js#n...
src/harmony-typedarray.js:270: function TypedArrayToString() {
According to the spec this function doesn't exist: just install ArrayToString on
%TypedArray%.prototype (and add a test for that).

[dehrenberg, 2015-06-02 18:21:09]

On 2015/06/02 at 17:18:20, adamk wrote:
> https://codereview.chromium.org/1166623004/diff/1/src/harmony-typedarray.js
> File src/harmony-typedarray.js (right):
> 
>
https://codereview.chromium.org/1166623004/diff/1/src/harmony-typedarray.js#n...
> src/harmony-typedarray.js:270: function TypedArrayToString() {
> According to the spec this function doesn't exist: just install ArrayToString
on %TypedArray%.prototype (and add a test for that).

Did something like that, except that caused a bootstrap failure, so I just made
another function that calls that (and added a TODO).

[adamk, 2015-06-02 18:23:37]

lgtm

[adamk, 2015-06-02 18:23:41]

The CQ bit was checked by adamk@chromium.org

[commit-bot: I haz the power, 2015-06-02 18:24:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1166623004/20001

[commit-bot: I haz the power, 2015-06-02 18:58:16]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-02 18:58:36]

Patchset 2 (id:??) landed as
https://crrev.com/4f9df26b09b997d40910eeaad1e6d627f11f591d
Cr-Commit-Position: refs/heads/master@{#28766}