Add UseCounters for various RegExp compatibility issues

Add UseCounters for various RegExp compatibility issues

We have compatibility workarounds to return 'undefined' on accessors
to RegExp.prototype. This patch adds two UseCounters for two categories
of this non-spec-compliant path:
- source
- ignorecase, multiline, global

R=yangguo
BUG=chromium:581577
LOG=Y

Committed: https://crrev.com/4ea11ca941fc074fcbacace405ac684d20e34f61
Cr-Commit-Position: refs/heads/master@{#34597}

[Dan Ehrenberg, 2016-03-04 22:33:25]

The CQ bit was checked by littledan@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-03-04 22:33:30]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1762423002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1762423002/1

[commit-bot: I haz the power, 2016-03-04 22:57:10]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-03-04 22:57:11]

Dry run: This issue passed the CQ dry run.

[Yang, 2016-03-07 06:59:30]

On 2016/03/04 22:57:11, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

LGTM.

[Dan Ehrenberg, 2016-03-07 15:37:16]

The CQ bit was checked by littledan@chromium.org

[commit-bot: I haz the power, 2016-03-07 15:37:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1762423002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1762423002/1

[commit-bot: I haz the power, 2016-03-07 17:37:54]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-03-07 17:37:55]

Try jobs failed on following builders:
  v8_win_compile_dbg on tryserver.v8 (JOB_TIMED_OUT, no build URL)

[Dan Ehrenberg, 2016-03-08 18:45:35]

The CQ bit was checked by littledan@chromium.org

[commit-bot: I haz the power, 2016-03-08 18:45:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1762423002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1762423002/1

[commit-bot: I haz the power, 2016-03-08 19:14:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-08 19:14:53]

Description was changed from

==========
Add UseCounters for various RegExp compatibility issues

We have compatibility workarounds to return 'undefined' on accessors
to RegExp.prototype. This patch adds two UseCounters for two categories
of this non-spec-compliant path:
- source
- ignorecase, multiline, global

R=yangguo
BUG=chromium:581577
LOG=Y
==========

to

==========
Add UseCounters for various RegExp compatibility issues

We have compatibility workarounds to return 'undefined' on accessors
to RegExp.prototype. This patch adds two UseCounters for two categories
of this non-spec-compliant path:
- source
- ignorecase, multiline, global

R=yangguo
BUG=chromium:581577
LOG=Y

Committed: https://crrev.com/4ea11ca941fc074fcbacace405ac684d20e34f61
Cr-Commit-Position: refs/heads/master@{#34597}
==========

[commit-bot: I haz the power, 2016-03-08 19:14:54]

Patchset 1 (id:??) landed as
https://crrev.com/4ea11ca941fc074fcbacace405ac684d20e34f61
Cr-Commit-Position: refs/heads/master@{#34597}