Revert of Remove the weak list of array buffers

Revert of Remove the weak list of array buffers (patchset #8 id:140001 of https://codereview.chromium.org/1114563002/)

Reason for revert:
[Sheriff] Crashes in layout tests:
https://chromegw.corp.google.com/i/client.v8/builders/V8-Blink%20Linux%2064%20%28dbg%29/builds/2668

Original issue's description:
> Remove the weak list of array buffers
>
> Instead, collect live array buffers during marking and free pointers we
> no longer found.
>
> BUG=v8:3996
> R=hpayer@chromium.org
> LOG=n
>
> Committed: https://crrev.com/2d39709cf5ee17637f6f2d75380a9e61ae0b342b
> Cr-Commit-Position: refs/heads/master@{#28132}

TBR=dslomov@chromium.org,hpayer@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3996
Committed: https://crrev.com/3e25666c79373789bf020a2f9ef4be5e8d96dc6c
Cr-Commit-Position: refs/heads/master@{#28148}

[Michael Achenbach, 2015-04-30 08:38:02]

Created Revert of Remove the weak list of array buffers

[commit-bot: I haz the power, 2015-04-30 08:38:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1115043005/1

[commit-bot: I haz the power, 2015-04-30 08:38:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-30 08:38:35]

Patchset 1 (id:??) landed as
https://crrev.com/3e25666c79373789bf020a2f9ef4be5e8d96dc6c
Cr-Commit-Position: refs/heads/master@{#28148}