Revert of [regexp] implement /ui to mirror the implementation for /i.

Revert of [regexp] implement /ui to mirror the implementation for /i. (patchset #2 id:20001 of https://codereview.chromium.org/1641613002/ )

Reason for revert:
This test fails:

assertEquals(["as"], /^a[\u017F]/ui.exec("as"));

The reason is that we end up with a character class that is not stand alone, so we do not perform case folding on it correctly (with unicode flag).

Original issue's description:
> [regexp] implement /ui to mirror the implementation for /i.
>
> R=erik.corry@gmail.com, erikcorry@chromium.org
>
> Committed: https://crrev.com/eea1a4c003c559c99bcc9f08aa7eadf931975aad
> Cr-Commit-Position: refs/heads/master@{#33655}

TBR=erik.corry@gmail.com,erikcorry@chromium.org,erikcorry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/d77d657731342fb0d504c9de95d9b399f50ca02a
Cr-Commit-Position: refs/heads/master@{#33676}

[Yang, 2016-02-02 11:34:30]

Created Revert of [regexp] implement /ui to mirror the implementation for /i.

[Yang, 2016-02-02 11:35:14]

The CQ bit was unchecked by yangguo@chromium.org

[erikcorry, 2016-02-02 11:38:21]

lgtm

[Yang, 2016-02-02 11:41:35]

The CQ bit was checked by yangguo@chromium.org

[Yang, 2016-02-02 11:41:35]

The patchset sent to the CQ was uploaded after l-g-t-m from erikcorry@google.com
Link to the patchset: https://codereview.chromium.org/1661483002/#ps160001
(title: "add cause of revert as test case")

[commit-bot: I haz the power, 2016-02-02 11:41:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1661483002/160001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1661483002/160001

[commit-bot: I haz the power, 2016-02-02 11:44:11]

Description was changed from

==========
Revert of [regexp] implement /ui to mirror the implementation for /i. (patchset
#2 id:20001 of https://codereview.chromium.org/1641613002/ )

Reason for revert:
This test fails:

assertEquals(["as"], /^a[\u017F]/ui.exec("as"));

The reason is that we end up with a character class that is not stand alone, so
we do not perform case folding on it correctly (with unicode flag).

Original issue's description:
> [regexp] implement /ui to mirror the implementation for /i.
> 
> R=erik.corry@gmail.com, erikcorry@chromium.org
> 
> Committed: https://crrev.com/eea1a4c003c559c99bcc9f08aa7eadf931975aad
> Cr-Commit-Position: refs/heads/master@{#33655}

TBR=erik.corry@gmail.com,erikcorry@chromium.org,erikcorry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of [regexp] implement /ui to mirror the implementation for /i. (patchset
#2 id:20001 of https://codereview.chromium.org/1641613002/ )

Reason for revert:
This test fails:

assertEquals(["as"], /^a[\u017F]/ui.exec("as"));

The reason is that we end up with a character class that is not stand alone, so
we do not perform case folding on it correctly (with unicode flag).

Original issue's description:
> [regexp] implement /ui to mirror the implementation for /i.
> 
> R=erik.corry@gmail.com, erikcorry@chromium.org
> 
> Committed: https://crrev.com/eea1a4c003c559c99bcc9f08aa7eadf931975aad
> Cr-Commit-Position: refs/heads/master@{#33655}

TBR=erik.corry@gmail.com,erikcorry@chromium.org,erikcorry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

[commit-bot: I haz the power, 2016-02-02 11:44:11]

Committed patchset #2 (id:160001)

[commit-bot: I haz the power, 2016-02-02 11:44:58]

Description was changed from

==========
Revert of [regexp] implement /ui to mirror the implementation for /i. (patchset
#2 id:20001 of https://codereview.chromium.org/1641613002/ )

Reason for revert:
This test fails:

assertEquals(["as"], /^a[\u017F]/ui.exec("as"));

The reason is that we end up with a character class that is not stand alone, so
we do not perform case folding on it correctly (with unicode flag).

Original issue's description:
> [regexp] implement /ui to mirror the implementation for /i.
> 
> R=erik.corry@gmail.com, erikcorry@chromium.org
> 
> Committed: https://crrev.com/eea1a4c003c559c99bcc9f08aa7eadf931975aad
> Cr-Commit-Position: refs/heads/master@{#33655}

TBR=erik.corry@gmail.com,erikcorry@chromium.org,erikcorry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of [regexp] implement /ui to mirror the implementation for /i. (patchset
#2 id:20001 of https://codereview.chromium.org/1641613002/ )

Reason for revert:
This test fails:

assertEquals(["as"], /^a[\u017F]/ui.exec("as"));

The reason is that we end up with a character class that is not stand alone, so
we do not perform case folding on it correctly (with unicode flag).

Original issue's description:
> [regexp] implement /ui to mirror the implementation for /i.
>
> R=erik.corry@gmail.com, erikcorry@chromium.org
>
> Committed: https://crrev.com/eea1a4c003c559c99bcc9f08aa7eadf931975aad
> Cr-Commit-Position: refs/heads/master@{#33655}

TBR=erik.corry@gmail.com,erikcorry@chromium.org,erikcorry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/d77d657731342fb0d504c9de95d9b399f50ca02a
Cr-Commit-Position: refs/heads/master@{#33676}
==========

[commit-bot: I haz the power, 2016-02-02 11:44:59]

Patchset 2 (id:??) landed as
https://crrev.com/d77d657731342fb0d504c9de95d9b399f50ca02a
Cr-Commit-Position: refs/heads/master@{#33676}