[V8] Don't ignore sourceURL comment in inline scripts in .stack

[V8] Don't ignore sourceURL comment in inline scripts in .stack

In DevTools we've already used sourceURL in inline scripts.
This CL makes the behavior of the V8 in the same for Error.stack property and v8::StackTrace.

BUG=v8:3920
LOG=Y
R=yangguo@chromium.org

Committed: https://crrev.com/9f6b1333a10ba27cfb59dedc705cd5917ca702cd
Cr-Commit-Position: refs/heads/master@{#27554}

[kozy, 2015-03-31 12:46:01]

Yang, please take a look.

[Yang, 2015-03-31 18:31:26]

On 2015/03/31 12:46:01, kozyatinskiy wrote:
> Yang, please take a look.

Lgtm.

[kozy, 2015-03-31 19:33:24]

The CQ bit was checked by kozyatinskiy@chromium.org

[commit-bot: I haz the power, 2015-03-31 19:34:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1044173002/1

[commit-bot: I haz the power, 2015-03-31 19:36:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-31 19:36:17]

Patchset 1 (id:??) landed as
https://crrev.com/9f6b1333a10ba27cfb59dedc705cd5917ca702cd
Cr-Commit-Position: refs/heads/master@{#27554}