Revert of Add web compat workarounds for ES2015 RegExp semantics

Revert of Add web compat workarounds for ES2015 RegExp semantics (patchset #3 id:40001 of https://codereview.chromium.org/1543723002/ )

Reason for revert:
Breaks nosnap: http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap/builds/5883

Original issue's description:
> Add web compat workarounds for ES2015 RegExp semantics
>
> Unexpectedly, websites depend on doing feature testing with
> RegExp.prototype.sticky and browser testing with RegExp.prototype.toString().
> ES2015 newly throws exceptions for both of these. In order to enable shipping
> new ES2015 semantics, this patch puts in narrow workarounds for those two
> cases, keeping their old behavior. UseCounters are added for how often
> those particular cases come up, so we can see if it can be deprecated.
>
> R=yangguo
> BUG=v8:4637, v8:4617
> LOG=Y
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/98f819c3e0c92d54a306cdacadda73cf96d21b52
> Cr-Commit-Position: refs/heads/master@{#32997}

TBR=yangguo@google.com,yangguo@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4637, v8:4617
Committed: https://crrev.com/08a1d1a28847caf62a996d93f11da982d2649061
Cr-Commit-Position: refs/heads/master@{#32999}

[Benedikt Meurer, 2015-12-22 07:36:55]

Created Revert of Add web compat workarounds for ES2015 RegExp semantics

[commit-bot: I haz the power, 2015-12-22 07:37:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1546493003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1546493003/1

[commit-bot: I haz the power, 2015-12-22 07:37:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-22 07:38:03]

Description was changed from

==========
Revert of Add web compat workarounds for ES2015 RegExp semantics (patchset #3
id:40001 of https://codereview.chromium.org/1543723002/ )

Reason for revert:
Breaks nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap/builds...

Original issue's description:
> Add web compat workarounds for ES2015 RegExp semantics
> 
> Unexpectedly, websites depend on doing feature testing with
> RegExp.prototype.sticky and browser testing with RegExp.prototype.toString().
> ES2015 newly throws exceptions for both of these. In order to enable shipping
> new ES2015 semantics, this patch puts in narrow workarounds for those two
> cases, keeping their old behavior. UseCounters are added for how often
> those particular cases come up, so we can see if it can be deprecated.
> 
> R=yangguo
> BUG=v8:4637,v8:4617
> LOG=Y
>
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
> 
> Committed: https://crrev.com/98f819c3e0c92d54a306cdacadda73cf96d21b52
> Cr-Commit-Position: refs/heads/master@{#32997}

TBR=yangguo@google.com,yangguo@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4637,v8:4617
==========

to

==========
Revert of Add web compat workarounds for ES2015 RegExp semantics (patchset #3
id:40001 of https://codereview.chromium.org/1543723002/ )

Reason for revert:
Breaks nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap/builds...

Original issue's description:
> Add web compat workarounds for ES2015 RegExp semantics
>
> Unexpectedly, websites depend on doing feature testing with
> RegExp.prototype.sticky and browser testing with RegExp.prototype.toString().
> ES2015 newly throws exceptions for both of these. In order to enable shipping
> new ES2015 semantics, this patch puts in narrow workarounds for those two
> cases, keeping their old behavior. UseCounters are added for how often
> those particular cases come up, so we can see if it can be deprecated.
>
> R=yangguo
> BUG=v8:4637,v8:4617
> LOG=Y
>
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/98f819c3e0c92d54a306cdacadda73cf96d21b52
> Cr-Commit-Position: refs/heads/master@{#32997}

TBR=yangguo@google.com,yangguo@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4637,v8:4617

Committed: https://crrev.com/08a1d1a28847caf62a996d93f11da982d2649061
Cr-Commit-Position: refs/heads/master@{#32999}
==========

[commit-bot: I haz the power, 2015-12-22 07:38:04]

Patchset 1 (id:??) landed as
https://crrev.com/08a1d1a28847caf62a996d93f11da982d2649061
Cr-Commit-Position: refs/heads/master@{#32999}