Eagerly set arguments_, new_target_ and ths_function_ in Scope

Eagerly set arguments_, new_target_ and ths_function_ Scope, and unset if we don't need to allocate them.

This probably slightly speeds up AllocateParameterLocals, but more importantly it removes ast_value_factory_ uses. If we get rid of ast_value_factory from Scope it's easier to lazily allocate it later from within a ScopeState object.

BUG=v8:5209
Committed: https://crrev.com/3442519d566889055f7113a76e36f7ea98c01855
Cr-Commit-Position: refs/heads/master@{#37868}

[Toon Verwaest, 2016-07-19 11:03:56]

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

[Toon Verwaest, 2016-07-19 11:03:56]

ptal

[marja, 2016-07-19 11:09:00]

lgtm

[Toon Verwaest, 2016-07-19 11:18:54]

Description was changed from

==========
Eagerly set arguments_ in Scope, and unset it if we don't need to allocate the
arguments object.

This probably slightly speeds up AllocateParameterLocals, but more
importantly it removes ast_value_factory_ uses. If we get rid of
ast_value_factory from Scope it's easier to lazily allocate it later
from within a ScopeState object.

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

to

==========
Eagerly set arguments_, new_target_ and ths_function_ Scope, and unset if we
don't need to allocate them.

This probably slightly speeds up AllocateParameterLocals, but more importantly
it removes ast_value_factory_ uses. If we get rid of ast_value_factory from
Scope it's easier to lazily allocate it later from within a ScopeState object.

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

[marja, 2016-07-19 11:21:30]

still lgtm

[Toon Verwaest, 2016-07-19 11:53:44]

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

[commit-bot: I haz the power, 2016-07-19 11:53:59]

Dry run: 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, 2016-07-19 12:17:37]

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

[commit-bot: I haz the power, 2016-07-19 12:17:37]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-07-19 12:56:05]

LGTM.

[Toon Verwaest, 2016-07-19 12:58:40]

The CQ bit was checked by verwaest@chromium.org

[commit-bot: I haz the power, 2016-07-19 12:58:45]

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, 2016-07-19 13:00:45]

Description was changed from

==========
Eagerly set arguments_, new_target_ and ths_function_ Scope, and unset if we
don't need to allocate them.

This probably slightly speeds up AllocateParameterLocals, but more importantly
it removes ast_value_factory_ uses. If we get rid of ast_value_factory from
Scope it's easier to lazily allocate it later from within a ScopeState object.

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

to

==========
Eagerly set arguments_, new_target_ and ths_function_ Scope, and unset if we
don't need to allocate them.

This probably slightly speeds up AllocateParameterLocals, but more importantly
it removes ast_value_factory_ uses. If we get rid of ast_value_factory from
Scope it's easier to lazily allocate it later from within a ScopeState object.

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

[commit-bot: I haz the power, 2016-07-19 13:00:46]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-07-19 13:01:55]

Description was changed from

==========
Eagerly set arguments_, new_target_ and ths_function_ Scope, and unset if we
don't need to allocate them.

This probably slightly speeds up AllocateParameterLocals, but more importantly
it removes ast_value_factory_ uses. If we get rid of ast_value_factory from
Scope it's easier to lazily allocate it later from within a ScopeState object.

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

to

==========
Eagerly set arguments_, new_target_ and ths_function_ Scope, and unset if we
don't need to allocate them.

This probably slightly speeds up AllocateParameterLocals, but more importantly
it removes ast_value_factory_ uses. If we get rid of ast_value_factory from
Scope it's easier to lazily allocate it later from within a ScopeState object.

BUG=v8:5209

Committed: https://crrev.com/3442519d566889055f7113a76e36f7ea98c01855
Cr-Commit-Position: refs/heads/master@{#37868}
==========

[commit-bot: I haz the power, 2016-07-19 13:01:56]

Patchset 2 (id:??) landed as
https://crrev.com/3442519d566889055f7113a76e36f7ea98c01855
Cr-Commit-Position: refs/heads/master@{#37868}