[Interpreter] Fixes VisitNewLocalBlockContext to reserve consecutive registers.

[Interpreter] Fixes VisitNewLocalBlockContext to reserve consecutive registers.

VisitNewLocalBlockContext funciton was allocating two registers and checking
if they are consecutive. This cl changes it to reserve consecutive registers.
The earlier code breaks this test mjsunit/regress/regress-542099.js.

BUG=v8:4280
LOG=N

Committed: https://crrev.com/f7be4de9bc84ab899e008a90c7d2774498284990
Cr-Commit-Position: refs/heads/master@{#33086}

[mythria, 2016-01-04 13:36:17]

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

[mythria, 2016-01-04 13:36:17]

I did not update mjsunit.status because, this still does not fix the test. The
test fails at a different place.

[rmcilroy, 2016-01-04 14:58:45]

LGTM, thanks!

[mythria, 2016-01-04 15:52:09]

The CQ bit was checked by mythria@chromium.org

[commit-bot: I haz the power, 2016-01-04 15:52:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1545003003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1545003003/1

[commit-bot: I haz the power, 2016-01-04 15:53:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-04 15:54:04]

Description was changed from

==========
[Interpreter] Fixes VisitNewLocalBlockContext to reserve consecutive registers.

VisitNewLocalBlockContext funciton was allocating two registers and checking
if they are consecutive. This cl changes it to reserve consecutive registers.
The earlier code breaks this test mjsunit/regress/regress-542099.js.

BUG=v8:4280
LOG=N
==========

to

==========
[Interpreter] Fixes VisitNewLocalBlockContext to reserve consecutive registers.

VisitNewLocalBlockContext funciton was allocating two registers and checking
if they are consecutive. This cl changes it to reserve consecutive registers.
The earlier code breaks this test mjsunit/regress/regress-542099.js.

BUG=v8:4280
LOG=N

Committed: https://crrev.com/f7be4de9bc84ab899e008a90c7d2774498284990
Cr-Commit-Position: refs/heads/master@{#33086}
==========

[commit-bot: I haz the power, 2016-01-04 15:54:04]

Patchset 1 (id:??) landed as
https://crrev.com/f7be4de9bc84ab899e008a90c7d2774498284990
Cr-Commit-Position: refs/heads/master@{#33086}