Revert of Refactor script position calculation

Revert of Refactor script position calculation (patchset #3 id:40001 of https://codereview.chromium.org/2003483002/ )

Reason for revert:
Crashes gc stress with custom snapshot:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/builds/5763

Original issue's description:
> Refactor script position calculation
>
> Script position calculation logic (i.e. line & column numbers for a
> given code position) is now based on a single method
> Script::GetPositionInfo(). Refactored related code in isolate.cc and
> js/messages.js to use the new method. The line_ends accessor is still
> in use by chromium and thus cannot be removed yet.
>
> R=yangguo@chromium.org
> BUG=
>
> Committed: https://crrev.com/2f3879d54633c4076d38e9fc85b6e2e157c61548
> Cr-Commit-Position: refs/heads/master@{#36398}

TBR=yangguo@chromium.org,jgruber@chromium.org,jgruber@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/2f8a0077ae838e9eab9a2f44e49970bf7e73254a
Cr-Commit-Position: refs/heads/master@{#36403}

[Michael Achenbach, 2016-05-20 10:48:39]

Created Revert of Refactor script position calculation

[commit-bot: I haz the power, 2016-05-20 10:48:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1995323002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1995323002/1

[commit-bot: I haz the power, 2016-05-20 10:49:02]

Description was changed from

==========
Revert of Refactor script position calculation (patchset #3 id:40001 of
https://codereview.chromium.org/2003483002/ )

Reason for revert:
Crashes gc stress with custom snapshot:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20...

Original issue's description:
> Refactor script position calculation
> 
> Script position calculation logic (i.e. line & column numbers for a
> given code position) is now based on a single method
> Script::GetPositionInfo(). Refactored related code in isolate.cc and
> js/messages.js to use the new method. The line_ends accessor is still
> in use by chromium and thus cannot be removed yet.
> 
> R=yangguo@chromium.org
> BUG=
> 
> Committed: https://crrev.com/2f3879d54633c4076d38e9fc85b6e2e157c61548
> Cr-Commit-Position: refs/heads/master@{#36398}

TBR=yangguo@chromium.org,jgruber@chromium.org,jgruber@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of Refactor script position calculation (patchset #3 id:40001 of
https://codereview.chromium.org/2003483002/ )

Reason for revert:
Crashes gc stress with custom snapshot:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20...

Original issue's description:
> Refactor script position calculation
> 
> Script position calculation logic (i.e. line & column numbers for a
> given code position) is now based on a single method
> Script::GetPositionInfo(). Refactored related code in isolate.cc and
> js/messages.js to use the new method. The line_ends accessor is still
> in use by chromium and thus cannot be removed yet.
> 
> R=yangguo@chromium.org
> BUG=
> 
> Committed: https://crrev.com/2f3879d54633c4076d38e9fc85b6e2e157c61548
> Cr-Commit-Position: refs/heads/master@{#36398}

TBR=yangguo@chromium.org,jgruber@chromium.org,jgruber@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

[commit-bot: I haz the power, 2016-05-20 10:49:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-20 10:49:49]

Description was changed from

==========
Revert of Refactor script position calculation (patchset #3 id:40001 of
https://codereview.chromium.org/2003483002/ )

Reason for revert:
Crashes gc stress with custom snapshot:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20...

Original issue's description:
> Refactor script position calculation
> 
> Script position calculation logic (i.e. line & column numbers for a
> given code position) is now based on a single method
> Script::GetPositionInfo(). Refactored related code in isolate.cc and
> js/messages.js to use the new method. The line_ends accessor is still
> in use by chromium and thus cannot be removed yet.
> 
> R=yangguo@chromium.org
> BUG=
> 
> Committed: https://crrev.com/2f3879d54633c4076d38e9fc85b6e2e157c61548
> Cr-Commit-Position: refs/heads/master@{#36398}

TBR=yangguo@chromium.org,jgruber@chromium.org,jgruber@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of Refactor script position calculation (patchset #3 id:40001 of
https://codereview.chromium.org/2003483002/ )

Reason for revert:
Crashes gc stress with custom snapshot:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20...

Original issue's description:
> Refactor script position calculation
>
> Script position calculation logic (i.e. line & column numbers for a
> given code position) is now based on a single method
> Script::GetPositionInfo(). Refactored related code in isolate.cc and
> js/messages.js to use the new method. The line_ends accessor is still
> in use by chromium and thus cannot be removed yet.
>
> R=yangguo@chromium.org
> BUG=
>
> Committed: https://crrev.com/2f3879d54633c4076d38e9fc85b6e2e157c61548
> Cr-Commit-Position: refs/heads/master@{#36398}

TBR=yangguo@chromium.org,jgruber@chromium.org,jgruber@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/2f8a0077ae838e9eab9a2f44e49970bf7e73254a
Cr-Commit-Position: refs/heads/master@{#36403}
==========

[commit-bot: I haz the power, 2016-05-20 10:49:50]

Patchset 1 (id:??) landed as
https://crrev.com/2f8a0077ae838e9eab9a2f44e49970bf7e73254a
Cr-Commit-Position: refs/heads/master@{#36403}