Use a slot that is located on a heap page when removing invalid entries from the SlotsBuffer.

Use a slot that is located on a heap page when removing invalid entries from the SlotsBuffer.

BUG=chromium:470801
LOG=Y

Committed: https://crrev.com/2f3a42f9a1d66ffc9d260d9700ff831c3aa1cd41
Cr-Commit-Position: refs/heads/master@{#27467}

[Igor Sheludko, 2015-03-26 08:44:20]

ishell@chromium.org changed reviewers:
+ hpayer@chromium.org

[Igor Sheludko, 2015-03-26 08:44:21]

PTAL

[Hannes Payer (out of office), 2015-03-26 08:52:11]

lgtm

[Igor Sheludko, 2015-03-26 08:52:36]

The CQ bit was checked by ishell@chromium.org

[commit-bot: I haz the power, 2015-03-26 08:52:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1020853022/1

[commit-bot: I haz the power, 2015-03-26 09:00:21]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-26 09:00:33]

Patchset 1 (id:??) landed as
https://crrev.com/2f3a42f9a1d66ffc9d260d9700ff831c3aa1cd41
Cr-Commit-Position: refs/heads/master@{#27467}

[Igor Sheludko, 2015-03-27 06:34:16]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1033163002/ by ishell@chromium.org.

The reason for reverting is: Reverting risky GC changes that block v8 roll..