[interpreter] Add test for OSR from within generators.

[interpreter] Add test for OSR from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764
Committed: https://crrev.com/fcdcff5605901f5320a773d6da727ecf41917d18
Cr-Commit-Position: refs/heads/master@{#38125}

[Michael Starzinger, 2016-07-28 09:11:57]

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

[commit-bot: I haz the power, 2016-07-28 09:12:06]

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

[Michael Starzinger, 2016-07-28 09:13:58]

Note that the tests only actually trigger OSR when generators no longer disable
optimization (for OSR even the %OptimizeOsr does not override ast-numbering).
But I wanted to upload my investigatory tests anyways so that we have them for
when generators are actually enabled for optimization.

[neis, 2016-07-28 09:18:35]

lgtm

[Michael Starzinger, 2016-07-28 09:20:28]

Description was changed from

==========
[interpreter] Add test for OST from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764
==========

to

==========
[interpreter] Add test for OSR from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764
==========

[commit-bot: I haz the power, 2016-07-28 09:47:34]

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

[commit-bot: I haz the power, 2016-07-28 09:47:35]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-07-28 09:47:50]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-07-28 09:47:54]

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, 2016-07-28 09:49:35]

Description was changed from

==========
[interpreter] Add test for OSR from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764
==========

to

==========
[interpreter] Add test for OSR from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764
==========

[commit-bot: I haz the power, 2016-07-28 09:49:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-28 09:50:05]

Description was changed from

==========
[interpreter] Add test for OSR from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764
==========

to

==========
[interpreter] Add test for OSR from within generators.

R=neis@chromium.org
TEST=mjsunit/ignition/osr-from-generator
BUG=v8:4764

Committed: https://crrev.com/fcdcff5605901f5320a773d6da727ecf41917d18
Cr-Commit-Position: refs/heads/master@{#38125}
==========

[commit-bot: I haz the power, 2016-07-28 09:50:06]

Patchset 1 (id:??) landed as
https://crrev.com/fcdcff5605901f5320a773d6da727ecf41917d18
Cr-Commit-Position: refs/heads/master@{#38125}

[rmcilroy, 2016-07-28 11:15:19]

As discussed offline:
 - We could make ASTNumbering just disable Crankshaft if --turbo-from-bytecode
is enabled now.
 - It might be good to have a test something like: 
   for (var i = 0; i < 3; ++i) {
       yield i;
       if (i == 1) %OptimizeOsr();
   }

   so that the OSR code gets triggered and entered on the back-edge, and the
first thing done by the optimized OSR function is a suspend.