src: fix build on freebsd

src: fix build on freebsd

BUG=
R=danno

Committed: https://crrev.com/e8b9f2d70b8bfd24a69a5a4390a26e8ed945d8e0
Cr-Commit-Position: refs/heads/master@{#26057}

[indutny, 2015-01-13 17:54:06]

Right now build on FreeBSD fails with:

In file included from ../deps/v8/src/api.cc:16:
In file included from ../deps/v8/src/background-parsing-task.h:11:
In file included from ../deps/v8/src/parser.h:13:
../deps/v8/src/preparser.h:470:29: error: reinterpret_cast from 'nullptr_t' to
'const char *' is not allowed
                            reinterpret_cast<const char*>(NULL),
                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

And various other errors (all fixed here).

[danno, 2015-01-14 14:07:22]

lgtm

[danno, 2015-01-14 14:07:26]

The CQ bit was checked by danno@chromium.org

[commit-bot: I haz the power, 2015-01-14 14:08:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/839053004/1

[commit-bot: I haz the power, 2015-01-14 14:35:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-14 14:35:53]

Patchset 1 (id:??) landed as
https://crrev.com/e8b9f2d70b8bfd24a69a5a4390a26e8ed945d8e0
Cr-Commit-Position: refs/heads/master@{#26057}

[indutny, 2015-01-14 14:35:59]

On 2015/01/14 14:35:30, I haz the power (commit-bot) wrote:
> Committed patchset #1 (id:1)

Thank you!

[indutny, 2015-01-18 12:12:32]

Daniel,

Could this be backported to 4.1 branch? We are currently floating similar patch
on top of our deps/v8 folder in io.js.

Cheers,
Fedor.

[danno, 2015-01-19 08:00:43]

Sure, we can port this back, we need to get Canary coverage, first, though.