[runtime] Simplify handler table lookup semantics.

[runtime] Simplify handler table lookup semantics.

The range-based exception handler table is by now only used for bytecode
arrays. The semantics of the interpreter are that bytecode offsets point
to the beginning of the currently executing bytecode instruction. Uses
hence need to compensate for lookups based on a "retrun address". This
change removes the need for such off-by-one compensations by changing
lookup semantics to be based on "current instruction" offsets.

R=jarin@chromium.org

Committed: https://crrev.com/7a82d8e9e4d7e3ec46d9436262ff13afa0ef2304
Cr-Commit-Position: refs/heads/master@{#41339}

[Michael Starzinger, 2016-11-28 13:14:52]

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

[commit-bot: I haz the power, 2016-11-28 13:15:02]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Jarin, 2016-11-28 13:37:57]

Nice! lgtm.

[commit-bot: I haz the power, 2016-11-28 13:46:30]

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

[commit-bot: I haz the power, 2016-11-28 13:46:31]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-11-28 13:49:10]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-11-28 13:49:20]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Michael Starzinger, 2016-11-28 14:02:22]

The CQ bit was unchecked by mstarzinger@chromium.org

[Michael Starzinger, 2016-11-28 16:00:32]

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

[commit-bot: I haz the power, 2016-11-28 16:00:41]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-28 16:33:29]

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

[commit-bot: I haz the power, 2016-11-28 16:33:30]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-11-29 09:14:58]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2016-11-29 09:14:59]

The patchset sent to the CQ was uploaded after l-g-t-m from jarin@chromium.org
Link to the patchset: https://codereview.chromium.org/2534893002/#ps20001
(title: "Rebased.")

[commit-bot: I haz the power, 2016-11-29 09:15:06]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-29 09:16:41]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1480410898892900,
"parent_rev": "45baa0364606f9d6b96f9ef52d9931a7bc56afca", "commit_rev":
"98ddff971feab13cb0acd8b1c7089dc7ebbc26e0"}

[commit-bot: I haz the power, 2016-11-29 09:16:47]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-29 09:17:14]

Description was changed from

==========
[runtime] Simplify handler table lookup semantics.

The range-based exception handler table is by now only used for bytecode
arrays. The semantics of the interpreter are that bytecode offsets point
to the beginning of the currently executing bytecode instruction. Uses
hence need to compensate for lookups based on a "retrun address". This
change removes the need for such off-by-one compensations by changing
lookup semantics to be based on "current instruction" offsets.

R=jarin@chromium.org
==========

to

==========
[runtime] Simplify handler table lookup semantics.

The range-based exception handler table is by now only used for bytecode
arrays. The semantics of the interpreter are that bytecode offsets point
to the beginning of the currently executing bytecode instruction. Uses
hence need to compensate for lookups based on a "retrun address". This
change removes the need for such off-by-one compensations by changing
lookup semantics to be based on "current instruction" offsets.

R=jarin@chromium.org

Committed: https://crrev.com/7a82d8e9e4d7e3ec46d9436262ff13afa0ef2304
Cr-Commit-Position: refs/heads/master@{#41339}
==========

[commit-bot: I haz the power, 2016-11-29 09:17:15]

Patchset 2 (id:??) landed as
https://crrev.com/7a82d8e9e4d7e3ec46d9436262ff13afa0ef2304
Cr-Commit-Position: refs/heads/master@{#41339}