Revert of VariableProxy: when cloning, don't even think about creating dangling references.

Revert of VariableProxy: when cloning, don't even think about creating dangling references. (patchset #1 id:1 of https://codereview.chromium.org/2368253002/ )

Reason for revert:
Needed for  https://codereview.chromium.org/2373443003/

Original issue's description:
> VariableProxy: when cloning, don't even think about creating dangling references.
>
> The code path for cloning resolved VariableProxys (into a different
> Zone) was never hit, but if it was, it would create a dangling
> reference, since the Variable would stay in the original Zone.
>
> Kudos to verwaest@ for finding this!
>
> R=verwaest@chromium.org
> BUG=
>
> Committed: https://crrev.com/fd429bdb9e70cb8c4f8a4bbef0806e008c60440c
> Cr-Commit-Position: refs/heads/master@{#39723}

TBR=verwaest@chromium.org,marja@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/8edf2905693a2b486a97a0547ec53bb552f7db15
Cr-Commit-Position: refs/heads/master@{#39726}

[Michael Hablich, 2016-09-26 13:56:18]

The CQ bit was checked by hablich@chromium.org

[Michael Hablich, 2016-09-26 13:56:18]

Created Revert of VariableProxy: when cloning, don't even think about creating
dangling references.

[commit-bot: I haz the power, 2016-09-26 13:56:26]

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, 2016-09-26 13:56:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-26 13:56:51]

Description was changed from

==========
Revert of VariableProxy: when cloning, don't even think about creating dangling
references. (patchset #1 id:1 of https://codereview.chromium.org/2368253002/ )

Reason for revert:
Needed for  https://codereview.chromium.org/2373443003/

Original issue's description:
> VariableProxy: when cloning, don't even think about creating dangling
references.
> 
> The code path for cloning resolved VariableProxys (into a different
> Zone) was never hit, but if it was, it would create a dangling
> reference, since the Variable would stay in the original Zone.
> 
> Kudos to verwaest@ for finding this!
> 
> R=verwaest@chromium.org
> BUG=
> 
> Committed: https://crrev.com/fd429bdb9e70cb8c4f8a4bbef0806e008c60440c
> Cr-Commit-Position: refs/heads/master@{#39723}

TBR=verwaest@chromium.org,marja@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of VariableProxy: when cloning, don't even think about creating dangling
references. (patchset #1 id:1 of https://codereview.chromium.org/2368253002/ )

Reason for revert:
Needed for  https://codereview.chromium.org/2373443003/

Original issue's description:
> VariableProxy: when cloning, don't even think about creating dangling
references.
>
> The code path for cloning resolved VariableProxys (into a different
> Zone) was never hit, but if it was, it would create a dangling
> reference, since the Variable would stay in the original Zone.
>
> Kudos to verwaest@ for finding this!
>
> R=verwaest@chromium.org
> BUG=
>
> Committed: https://crrev.com/fd429bdb9e70cb8c4f8a4bbef0806e008c60440c
> Cr-Commit-Position: refs/heads/master@{#39723}

TBR=verwaest@chromium.org,marja@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/8edf2905693a2b486a97a0547ec53bb552f7db15
Cr-Commit-Position: refs/heads/master@{#39726}
==========

[commit-bot: I haz the power, 2016-09-26 13:56:52]

Patchset 1 (id:??) landed as
https://crrev.com/8edf2905693a2b486a97a0547ec53bb552f7db15
Cr-Commit-Position: refs/heads/master@{#39726}

[Michael Hablich, 2016-09-26 14:01:33]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2366373002/ by hablich@chromium.org.

The reason for reverting is: wrong CL.