[interpreter] Unbreak test262 tests using constants.

[interpreter] Unbreak test262 tests using constants.

Fixes a bug in the constant pool padding calculation.

BUG=v8:4680
LOG=N

Committed: https://crrev.com/318a09ea5985139c0984088c55a5d0f5e8c1f183
Cr-Commit-Position: refs/heads/master@{#34403}

[oth, 2016-02-29 18:47:59]

Ross, PTAL. Thanks.

[oth, 2016-02-29 19:21:34]

oth@chromium.org changed reviewers:
+ rmcilroy@chromium.org

[rmcilroy, 2016-03-01 05:00:17]

LGTM, thanks

[oth, 2016-03-01 18:03:18]

The CQ bit was checked by oth@chromium.org

[commit-bot: I haz the power, 2016-03-01 18:03:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1749853002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1749853002/1

[commit-bot: I haz the power, 2016-03-01 18:05:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-01 18:05:45]

Description was changed from

==========
[interpreter] Unbreak test262 tests using constants.

Fixes a bug in the constant pool padding calculation.

BUG=v8:4680
LOG=N
==========

to

==========
[interpreter] Unbreak test262 tests using constants.

Fixes a bug in the constant pool padding calculation.

BUG=v8:4680
LOG=N

Committed: https://crrev.com/318a09ea5985139c0984088c55a5d0f5e8c1f183
Cr-Commit-Position: refs/heads/master@{#34403}
==========

[commit-bot: I haz the power, 2016-03-01 18:05:46]

Patchset 1 (id:??) landed as
https://crrev.com/318a09ea5985139c0984088c55a5d0f5e8c1f183
Cr-Commit-Position: refs/heads/master@{#34403}