PPC: Remove kind field from StackHandler.

PPC: Remove kind field from StackHandler.

Port 15f8213809a57c2a163b500a732c9ffe5160a41a

Original commit message:
This relands commit 96f79568a926966ebcf0685bf9adc947f4e1fbff.

This makes the Isolate::Throw logic not depend on a prediction of
whether an exception is caught or uncaught. Such a prediction is
inherently undecidable because a finally block can decide between
consuming or re-throwing an exception depending on arbitray control
flow.

There still is a conservative prediction mechanism in place that
components like the debugger or tracing can use for reporting.

With this change we can get rid of the StackHandler::kind field, a
pre-requisite to do table-based lookups of exception handlers.

R=mbrandy@us.ibm.com, yangguo@chromium.org, svenpanne@chromium.org

BUG=

Committed: https://crrev.com/890c0eac21919a08ae10782ec3cc40d1381cbd8b
Cr-Commit-Position: refs/heads/master@{#27381}

[michael_dawson, 2015-03-19 13:52:28]

Port to PPC

[MTBrandyberry, 2015-03-19 15:51:49]

On 2015/03/19 13:52:28, michael_dawson wrote:
> Port to PPC

lgtm

[michael_dawson, 2015-03-23 12:57:08]

michael_dawson@ca.ibm.com changed reviewers:
+ jkummerow@chromium.org

[Jakob Kummerow, 2015-03-23 20:14:16]

lgtm

[michael_dawson, 2015-03-23 21:02:07]

The CQ bit was checked by michael_dawson@ca.ibm.com

[commit-bot: I haz the power, 2015-03-23 21:02:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1016333002/1

[commit-bot: I haz the power, 2015-03-23 21:32:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-23 21:33:10]

Patchset 1 (id:??) landed as
https://crrev.com/890c0eac21919a08ae10782ec3cc40d1381cbd8b
Cr-Commit-Position: refs/heads/master@{#27381}