PPC: [generators] Decouple generator resume from fullcodegen.

PPC: [generators] Decouple generator resume from fullcodegen.

Port 974721c66131d208571b8759a1caadf7f995c54c

Original commit message:
    Introduce a ResumeGeneratorTrampoline, which does the actual stack state
    reconstruction (currently always restores a fullcodegen frame), and
    introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
    %GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
    this native builtin.

    Also unify the flooding in case of step-in to always work based on
    JSFunction and remove the special casing for JSGeneratorObject.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=chromium:513471
LOG=n

Committed: https://crrev.com/1e001e71e8cc6efea5d4e0899945b78eddb9ed59
Cr-Commit-Position: refs/heads/master@{#35314}

[MTBrandyberry, 2016-04-06 19:38:17]

PTAL

[MTBrandyberry, 2016-04-06 19:38:33]

The CQ bit was checked by mbrandy@us.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-04-06 19:38:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1868683002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1868683002/1

[commit-bot: I haz the power, 2016-04-06 20:00:47]

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

[commit-bot: I haz the power, 2016-04-06 20:00:47]

Dry run: This issue passed the CQ dry run.

[john.yan, 2016-04-06 20:43:25]

lgtm

[MTBrandyberry, 2016-04-06 20:46:04]

The CQ bit was checked by mbrandy@us.ibm.com

[commit-bot: I haz the power, 2016-04-06 20:46:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1868683002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1868683002/1

[commit-bot: I haz the power, 2016-04-06 20:48:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-06 20:49:43]

Description was changed from

==========
PPC: [generators] Decouple generator resume from fullcodegen.

Port 974721c66131d208571b8759a1caadf7f995c54c

Original commit message:
    Introduce a ResumeGeneratorTrampoline, which does the actual stack state
    reconstruction (currently always restores a fullcodegen frame), and
    introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
    %GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
    this native builtin.

    Also unify the flooding in case of step-in to always work based on
    JSFunction and remove the special casing for JSGeneratorObject.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=chromium:513471
LOG=n
==========

to

==========
PPC: [generators] Decouple generator resume from fullcodegen.

Port 974721c66131d208571b8759a1caadf7f995c54c

Original commit message:
    Introduce a ResumeGeneratorTrampoline, which does the actual stack state
    reconstruction (currently always restores a fullcodegen frame), and
    introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
    %GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
    this native builtin.

    Also unify the flooding in case of step-in to always work based on
    JSFunction and remove the special casing for JSGeneratorObject.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=chromium:513471
LOG=n

Committed: https://crrev.com/1e001e71e8cc6efea5d4e0899945b78eddb9ed59
Cr-Commit-Position: refs/heads/master@{#35314}
==========

[commit-bot: I haz the power, 2016-04-06 20:49:44]

Patchset 1 (id:??) landed as
https://crrev.com/1e001e71e8cc6efea5d4e0899945b78eddb9ed59
Cr-Commit-Position: refs/heads/master@{#35314}