Introduce NewScriptScope that creates a top-level scope

Introduce NewScriptScope that creates a top-level scope

It's the only Scope type that has outer scope nullptr; and it always has outer scope nullptr.

BUG=v8:5209
Committed: https://crrev.com/d6a38645eff128562a302b885164199292a7dce0
Cr-Commit-Position: refs/heads/master@{#37907}

[Toon Verwaest, 2016-07-20 08:30:14]

verwaest@chromium.org changed reviewers:
+ marja@chromium.org

[Toon Verwaest, 2016-07-20 08:30:14]

ptal

[marja, 2016-07-20 08:51:25]

lgtm

[Toon Verwaest, 2016-07-20 11:14:56]

The CQ bit was checked by verwaest@chromium.org

[commit-bot: I haz the power, 2016-07-20 11:14:59]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-20 11:16:30]

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

[commit-bot: I haz the power, 2016-07-20 11:16:31]

Try jobs failed on following builders:
  v8_mac_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_mac_rel_ng/builds/5339)

[Toon Verwaest, 2016-07-20 12:24:32]

The CQ bit was checked by verwaest@chromium.org

[commit-bot: I haz the power, 2016-07-20 12:24:40]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-20 12:54:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-20 12:56:10]

Description was changed from

==========
Introduce NewScriptScope that creates a top-level scope

It's the only Scope type that has outer scope nullptr; and it always has outer
scope nullptr.

BUG=v8:5209
==========

to

==========
Introduce NewScriptScope that creates a top-level scope

It's the only Scope type that has outer scope nullptr; and it always has outer
scope nullptr.

BUG=v8:5209

Committed: https://crrev.com/d6a38645eff128562a302b885164199292a7dce0
Cr-Commit-Position: refs/heads/master@{#37907}
==========

[commit-bot: I haz the power, 2016-07-20 12:56:10]

Patchset 1 (id:??) landed as
https://crrev.com/d6a38645eff128562a302b885164199292a7dce0
Cr-Commit-Position: refs/heads/master@{#37907}