MIPS64: [regexp] do not assume short external strings have a minimum size.

MIPS64: [regexp] do not assume short external strings have a minimum size.

Port 3518e492c0939759ae1a2623bbd606646ee172f1

Original commit message:
    Short external strings do not cache the resource data, and may be used
    for compressible strings. The assumptions about their lengths is
    invalid and may lead to oob reads.

R=bmeurer@chromium.org
BUG=v8:4923, chromium:604897
LOG=N

Committed: https://crrev.com/b4697727e946e8d96d5345a4db7ff72842d60466
Cr-Commit-Position: refs/heads/master@{#35683}

[Benedikt Meurer, 2016-04-21 05:35:08]

lgtm

[Benedikt Meurer, 2016-04-21 05:35:13]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-04-21 05:35:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1902393004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1902393004/1

[commit-bot: I haz the power, 2016-04-21 05:58:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-22 19:14:01]

Description was changed from

==========
MIPS64: [regexp] do not assume short external strings have a minimum size.

Port 3518e492c0939759ae1a2623bbd606646ee172f1

Original commit message:
    Short external strings do not cache the resource data, and may be used
    for compressible strings. The assumptions about their lengths is
    invalid and may lead to oob reads.

R=bmeurer@chromium.org
BUG=v8:4923,chromium:604897
LOG=N
==========

to

==========
MIPS64: [regexp] do not assume short external strings have a minimum size.

Port 3518e492c0939759ae1a2623bbd606646ee172f1

Original commit message:
    Short external strings do not cache the resource data, and may be used
    for compressible strings. The assumptions about their lengths is
    invalid and may lead to oob reads.

R=bmeurer@chromium.org
BUG=v8:4923,chromium:604897
LOG=N

Committed: https://crrev.com/b4697727e946e8d96d5345a4db7ff72842d60466
Cr-Commit-Position: refs/heads/master@{#35683}
==========

[commit-bot: I haz the power, 2016-04-22 19:14:01]

Patchset 1 (id:??) landed as
https://crrev.com/b4697727e946e8d96d5345a4db7ff72842d60466
Cr-Commit-Position: refs/heads/master@{#35683}