[interpreter] Fix lookup of overlapping handler ranges.

[interpreter] Fix lookup of overlapping handler ranges.

This fixes corner cases where the start offsets of exception handler
regions within the handler table fall together. This assumption was
based on full-codegen code and no longer holds with the interpreter.
The tables however are still well nested and code has been added to
verify that in debug mode.

R=rmcilroy@chromium.org
BUG=v8:4674
LOG=n

Committed: https://crrev.com/21b6e077fadc7edb27ee0d947cef4bfd47020cab
Cr-Commit-Position: refs/heads/master@{#33495}

[rmcilroy, 2016-01-25 14:47:32]

LGTM, thanks.

[Michael Starzinger, 2016-01-25 16:11:35]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2016-01-25 16:11:36]

The patchset sent to the CQ was uploaded after l-g-t-m from
rmcilroy@chromium.org
Link to the patchset: https://codereview.chromium.org/1633573002/#ps20001
(title: "Rebased.")

[commit-bot: I haz the power, 2016-01-25 16:11:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1633573002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1633573002/20001

[commit-bot: I haz the power, 2016-01-25 16:18:16]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-01-25 16:19:02]

Description was changed from

==========
[interpreter] Fix lookup of overlapping handler ranges.

This fixes corner cases where the start offsets of exception handler
regions within the handler table fall together. This assumption was
based on full-codegen code and no longer holds with the interpreter.
The tables however are still well nested and code has been added to
verify that in debug mode.

R=rmcilroy@chromium.org
BUG=v8:4674
LOG=n
==========

to

==========
[interpreter] Fix lookup of overlapping handler ranges.

This fixes corner cases where the start offsets of exception handler
regions within the handler table fall together. This assumption was
based on full-codegen code and no longer holds with the interpreter.
The tables however are still well nested and code has been added to
verify that in debug mode.

R=rmcilroy@chromium.org
BUG=v8:4674
LOG=n

Committed: https://crrev.com/21b6e077fadc7edb27ee0d947cef4bfd47020cab
Cr-Commit-Position: refs/heads/master@{#33495}
==========

[commit-bot: I haz the power, 2016-01-25 16:19:02]

Patchset 2 (id:??) landed as
https://crrev.com/21b6e077fadc7edb27ee0d947cef4bfd47020cab
Cr-Commit-Position: refs/heads/master@{#33495}