[turbofan] Add mjsunit tests for try-catch-finally and OSR.

[turbofan] Add mjsunit tests for try-catch-finally and OSR.

This adds some basic tests of the interaction between try-catch and
try-finally statements and OSR in TurboFan. The try-osr test suite
follows the structure of try-deopt closely.

R=titzer@chromium.org
TEST=mjsunit/compiler/try-osr

Committed: https://crrev.com/74c730a08d3832571d57bed76d974a0fa793dfff
Cr-Commit-Position: refs/heads/master@{#28855}

[titzer, 2015-06-08 17:00:57]

lgtm

[Michael Starzinger, 2015-06-09 07:50:10]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2015-06-09 07:50:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1165103003/1

[Michael Starzinger, 2015-06-09 07:51:41]

The CQ bit was unchecked by mstarzinger@chromium.org

[Michael Starzinger, 2015-06-09 07:53:14]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2015-06-09 07:53:15]

The patchset sent to the CQ was uploaded after l-g-t-m from titzer@chromium.org
Link to the patchset: https://codereview.chromium.org/1165103003/#ps20001
(title: "Tiny cleanup.")

[commit-bot: I haz the power, 2015-06-09 07:53:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1165103003/20001

[commit-bot: I haz the power, 2015-06-09 08:16:38]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-09 08:16:54]

Patchset 2 (id:??) landed as
https://crrev.com/74c730a08d3832571d57bed76d974a0fa793dfff
Cr-Commit-Position: refs/heads/master@{#28855}