Add ObjectTemplate::New() taking FunctionTemplate.

Add ObjectTemplate::New() taking FunctionTemplate.

I know the bug has been closed but this seems like a simple addition that may
be useful in other ways as well.

BUG=v8:2180
LOG=N

Committed: https://crrev.com/6618793e876a20ebe91a87eb20069ef4070280ed
Cr-Commit-Position: refs/heads/master@{#28261}

[bnoordhuis, 2015-05-05 14:08:25]

ben@strongloop.com changed reviewers:
+ jochen@chromium.org

[jochen (gone - plz use gerrit), 2015-05-05 15:13:41]

the test doesn't invoke the ObjectTemplate::New() with two arguments, does it?

[bnoordhuis, 2015-05-05 16:46:07]

On 2015/05/05 15:13:41, jochen wrote:
> the test doesn't invoke the ObjectTemplate::New() with two arguments, does it?

Yikes, that's what I get for submitting right before going out the door. 
Uploaded the intended patch.

[jochen (gone - plz use gerrit), 2015-05-06 12:46:21]

lgtm

[bnoordhuis, 2015-05-06 13:18:33]

The CQ bit was checked by ben@strongloop.com

[commit-bot: I haz the power, 2015-05-06 13:18:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1128553002/20001

[commit-bot: I haz the power, 2015-05-06 14:10:44]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-06 14:10:58]

Patchset 2 (id:??) landed as
https://crrev.com/6618793e876a20ebe91a87eb20069ef4070280ed
Cr-Commit-Position: refs/heads/master@{#28261}