PPC: [crankshaft] Fixing ES6 tail call elimination.

PPC: [crankshaft] Fixing ES6 tail call elimination.

Port acbb968dedd2b02b5447215a579cf4cdc99bc69a
Port 66e22b79e812437aa3be168da4612e64a2de6728

Original commit messages:
    In case when F inlined normal call to G which tail calls H we should not write translation for G for the tail call site.
    Otherwise we will see G in a stack trace inside H.

    This CL also enables all existing tests related to ES6 tail call elimination and adds more combinations.

    Always generate lazy bailout points for tail calls because Debugger could still require them to inspect optimized frames.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=chromium:596473, v8:4698
LOG=N

Committed: https://crrev.com/a6bf5bbdeacb428e5dd4dc10d9446feea7dd4ac2
Cr-Commit-Position: refs/heads/master@{#34996}

[MTBrandyberry, 2016-03-22 15:26:21]

PTAL

[MTBrandyberry, 2016-03-22 15:26:26]

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

[commit-bot: I haz the power, 2016-03-22 15:26:34]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1825513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1825513002/1

[Igor Sheludko, 2016-03-22 15:29:08]

lgtm

[commit-bot: I haz the power, 2016-03-22 15:47:43]

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

[commit-bot: I haz the power, 2016-03-22 15:47:44]

Dry run: This issue passed the CQ dry run.

[MTBrandyberry, 2016-03-22 16:35:20]

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

[commit-bot: I haz the power, 2016-03-22 16:35:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1825513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1825513002/1

[commit-bot: I haz the power, 2016-03-22 16:37:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-22 16:38:17]

Description was changed from

==========
PPC: [crankshaft] Fixing ES6 tail call elimination.

Port acbb968dedd2b02b5447215a579cf4cdc99bc69a
Port 66e22b79e812437aa3be168da4612e64a2de6728

Original commit messages:
    In case when F inlined normal call to G which tail calls H we should not
write translation for G for the tail call site.
    Otherwise we will see G in a stack trace inside H.

    This CL also enables all existing tests related to ES6 tail call elimination
and adds more combinations.

    Always generate lazy bailout points for tail calls because Debugger could
still require them to inspect optimized frames.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=chromium:596473, v8:4698
LOG=N
==========

to

==========
PPC: [crankshaft] Fixing ES6 tail call elimination.

Port acbb968dedd2b02b5447215a579cf4cdc99bc69a
Port 66e22b79e812437aa3be168da4612e64a2de6728

Original commit messages:
    In case when F inlined normal call to G which tail calls H we should not
write translation for G for the tail call site.
    Otherwise we will see G in a stack trace inside H.

    This CL also enables all existing tests related to ES6 tail call elimination
and adds more combinations.

    Always generate lazy bailout points for tail calls because Debugger could
still require them to inspect optimized frames.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=chromium:596473, v8:4698
LOG=N

Committed: https://crrev.com/a6bf5bbdeacb428e5dd4dc10d9446feea7dd4ac2
Cr-Commit-Position: refs/heads/master@{#34996}
==========

[commit-bot: I haz the power, 2016-03-22 16:38:18]

Patchset 1 (id:??) landed as
https://crrev.com/a6bf5bbdeacb428e5dd4dc10d9446feea7dd4ac2
Cr-Commit-Position: refs/heads/master@{#34996}