Unreachable should call V8_Fatal on release builds instead of silently ignoring the error.

Unreachable should call V8_Fatal on release builds instead of silently ignoring the error.

BUG=

Committed: https://crrev.com/148e51b3f353563543294e57e92b3f58db588a07
Cr-Commit-Position: refs/heads/master@{#31397}

[Benedikt Meurer, 2015-10-20 05:34:05]

bmeurer@chromium.org changed reviewers:
+ bmeurer@chromium.org, jochen@chromium.org

[Benedikt Meurer, 2015-10-20 05:34:05]

bmeurer@chromium.org changed required reviewers:
+ jochen@chromium.org

[Benedikt Meurer, 2015-10-20 05:34:06]

LGTM from my side, I prefer fail on error over self healing code. Adding jochen
for second opinion tho.

[jochen (gone - plz use gerrit), 2015-10-20 06:06:16]

lgtm

[Hannes Payer (out of office), 2015-10-20 07:13:40]

The CQ bit was checked by hpayer@chromium.org

[commit-bot: I haz the power, 2015-10-20 07:13:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1410713006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1410713006/1

[commit-bot: I haz the power, 2015-10-20 07:15:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-20 07:15:32]

Patchset 1 (id:??) landed as
https://crrev.com/148e51b3f353563543294e57e92b3f58db588a07
Cr-Commit-Position: refs/heads/master@{#31397}