Fix for v8:4380 introduced a regression in Octane crypto.

Fix for v8:4380 introduced a regression in Octane crypto.

Narrowed the scope of the fix, to make a best effort to avoid DEOPT in
case the hole is loaded, but not to permute the choice of a consolidated
load in case that effort fails.

BUG=chromium:530005
LOG=N

Committed: https://crrev.com/ebd16fd89d5a8881e28dbda81ab536c876e783f2
Cr-Commit-Position: refs/heads/master@{#30677}

[mvstanton, 2015-09-10 10:01:58]

mvstanton@chromium.org changed reviewers:
+ jkummerow@chromium.org

[mvstanton, 2015-09-10 10:01:58]

Hi Jakob,
Implementing your insightful off-the-cuff comment yesterday proves to be the
right thing. :) Thanks for the look,
--Michael

[Jakob Kummerow, 2015-09-10 10:55:06]

lgtm

[Jakob Kummerow, 2015-09-10 10:56:26]

Reminder: bugdroid wants "chromium:" on the BUG= line. Fixed that for ya.

[mvstanton, 2015-09-10 11:36:02]

The CQ bit was checked by mvstanton@chromium.org

[commit-bot: I haz the power, 2015-09-10 11:36:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1330233004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1330233004/1

[commit-bot: I haz the power, 2015-09-10 11:38:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-10 11:38:30]

Patchset 1 (id:??) landed as
https://crrev.com/ebd16fd89d5a8881e28dbda81ab536c876e783f2
Cr-Commit-Position: refs/heads/master@{#30677}