Revert "[Parse] ParseInfo owns the parsing Zone."

Revert "[Parse] ParseInfo owns the parsing Zone."

Speculative reason for issue 684481.

BUG=chromium:684481
TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org, 

Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203, v8:5215
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42562}
> Committed: https://chromium.googlesource.com/v8/v8/+/4b0101d369af121a6daf5e5c731cb939c026d526

Review-Url: https://codereview.chromium.org/2648383005
Cr-Commit-Position: refs/heads/master@{#42633}
Committed: https://chromium.googlesource.com/v8/v8/+/7524e523d7d64dd63ae6d9a3f3e13bb46398606d

[rmcilroy, 2017-01-24 14:03:44]

Description was changed from

==========
Revert "[Parse] ParseInfo owns the parsing Zone."

Speculative reason for issue 684481.

BUG=chromium:684481


Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203, v8:5215
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42562}
> Committed:
https://chromium.googlesource.com/v8/v8/+/4b0101d369af121a6daf5e5c731cb939c02...
==========

to

==========
Revert "[Parse] ParseInfo owns the parsing Zone."

Speculative reason for issue 684481.

BUG=chromium:684481
TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@c...,


Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203, v8:5215
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42562}
> Committed:
https://chromium.googlesource.com/v8/v8/+/4b0101d369af121a6daf5e5c731cb939c02...
==========

[rmcilroy, 2017-01-24 14:03:44]

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

[rmcilroy, 2017-01-24 14:03:57]

The CQ bit was checked by rmcilroy@chromium.org

[commit-bot: I haz the power, 2017-01-24 14:03:59]

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, 2017-01-24 14:38:14]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485266637693970, "parent_rev":
"f9367847b0e97e7238b4bfefbec79c8fbbc11056", "commit_rev":
"7524e523d7d64dd63ae6d9a3f3e13bb46398606d"}

[commit-bot: I haz the power, 2017-01-24 14:38:22]

Description was changed from

==========
Revert "[Parse] ParseInfo owns the parsing Zone."

Speculative reason for issue 684481.

BUG=chromium:684481
TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@c...,


Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203, v8:5215
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42562}
> Committed:
https://chromium.googlesource.com/v8/v8/+/4b0101d369af121a6daf5e5c731cb939c02...
==========

to

==========
Revert "[Parse] ParseInfo owns the parsing Zone."

Speculative reason for issue 684481.

BUG=chromium:684481
TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@c...,


Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203, v8:5215
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42562}
> Committed:
https://chromium.googlesource.com/v8/v8/+/4b0101d369af121a6daf5e5c731cb939c02...

Review-Url: https://codereview.chromium.org/2648383005
Cr-Commit-Position: refs/heads/master@{#42633}
Committed:
https://chromium.googlesource.com/v8/v8/+/7524e523d7d64dd63ae6d9a3f3e13bb4639...
==========

[commit-bot: I haz the power, 2017-01-24 14:38:23]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/7524e523d7d64dd63ae6d9a3f3e13bb4639...