Revert of [builtins] Migrate String.prototype.charCodeAt and String.prototype.charAt to TurboFan.

Revert of [builtins] Migrate String.prototype.charCodeAt and String.prototype.charAt to TurboFan. (patchset #2 id:20001 of https://codereview.chromium.org/1868963002/ )

Reason for revert:
Needed to revert https://codereview.chromium.org/1838283003/

Original issue's description:
> [builtins] Migrate String.prototype.charCodeAt and String.prototype.charAt to TurboFan.
>
> Make these builtins fast by default w/o relying on the
> %_StringCharCodeAt and %_StringCharAt intrinsics, which we cannot deal
> with well in TurboFan (and ignition).
>
> R=epertoso@chromium.org
>
> Committed: https://crrev.com/43d3331d87f68ea7efa1b58f559f33f60e5dacfb
> Cr-Commit-Position: refs/heads/master@{#35350}

TBR=epertoso@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/d1ec440f5d4df32f4deee1712633f1d565df2ff1
Cr-Commit-Position: refs/heads/master@{#35351}

[Michael Hablich, 2016-04-08 11:24:06]

Created Revert of [builtins] Migrate String.prototype.charCodeAt and
String.prototype.charAt to TurboFan.

[commit-bot: I haz the power, 2016-04-08 11:24:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1870993002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1870993002/1

[commit-bot: I haz the power, 2016-04-08 11:24:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-08 11:26:12]

Description was changed from

==========
Revert of [builtins] Migrate String.prototype.charCodeAt and
String.prototype.charAt to TurboFan. (patchset #2 id:20001 of
https://codereview.chromium.org/1868963002/ )

Reason for revert:
Needed to revert https://codereview.chromium.org/1838283003/

Original issue's description:
> [builtins] Migrate String.prototype.charCodeAt and String.prototype.charAt to
TurboFan.
> 
> Make these builtins fast by default w/o relying on the
> %_StringCharCodeAt and %_StringCharAt intrinsics, which we cannot deal
> with well in TurboFan (and ignition).
> 
> R=epertoso@chromium.org
> 
> Committed: https://crrev.com/43d3331d87f68ea7efa1b58f559f33f60e5dacfb
> Cr-Commit-Position: refs/heads/master@{#35350}

TBR=epertoso@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of [builtins] Migrate String.prototype.charCodeAt and
String.prototype.charAt to TurboFan. (patchset #2 id:20001 of
https://codereview.chromium.org/1868963002/ )

Reason for revert:
Needed to revert https://codereview.chromium.org/1838283003/

Original issue's description:
> [builtins] Migrate String.prototype.charCodeAt and String.prototype.charAt to
TurboFan.
>
> Make these builtins fast by default w/o relying on the
> %_StringCharCodeAt and %_StringCharAt intrinsics, which we cannot deal
> with well in TurboFan (and ignition).
>
> R=epertoso@chromium.org
>
> Committed: https://crrev.com/43d3331d87f68ea7efa1b58f559f33f60e5dacfb
> Cr-Commit-Position: refs/heads/master@{#35350}

TBR=epertoso@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/d1ec440f5d4df32f4deee1712633f1d565df2ff1
Cr-Commit-Position: refs/heads/master@{#35351}
==========

[commit-bot: I haz the power, 2016-04-08 11:26:13]

Patchset 1 (id:??) landed as
https://crrev.com/d1ec440f5d4df32f4deee1712633f1d565df2ff1
Cr-Commit-Position: refs/heads/master@{#35351}