X87: [es6] Tail calls support.

X87: [es6] Tail calls support.

  port 6131ab1edd6e78be01ac90b8f0b0f4f27f308071 (r33509)

  original commit message:
  This CL implements PrepareForTailCall() mentioned in ES6 spec for full codegen, Crankshaft and Turbofan.
  When debugger is active tail calls are disabled.

  Tail calling can be enabled by --harmony-tailcalls flag.

BUG=

Committed: https://crrev.com/66e2a786795859926e0ea3d23620e743a59fe88e
Cr-Commit-Position: refs/heads/master@{#33549}

[zhengxing.li, 2016-01-27 02:13:52]

zhengxing.li@intel.com changed reviewers:
+ chunyang.dai@intel.com, ishell@chromium.org, weiliang.lin@intel.com

[zhengxing.li, 2016-01-27 02:13:52]

PTAL, thanks!

[Igor Sheludko, 2016-01-27 09:04:37]

lgtm

[Weiliang, 2016-01-27 11:36:37]

lgtm

[zhengxing.li, 2016-01-27 12:29:38]

The CQ bit was checked by zhengxing.li@intel.com

[commit-bot: I haz the power, 2016-01-27 12:29:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1637163003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1637163003/1

[commit-bot: I haz the power, 2016-01-27 12:59:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-27 13:00:30]

Description was changed from

==========
X87: [es6] Tail calls support.

  port 6131ab1edd6e78be01ac90b8f0b0f4f27f308071 (r33509)

  original commit message:
  This CL implements PrepareForTailCall() mentioned in ES6 spec for full
codegen, Crankshaft and Turbofan.
  When debugger is active tail calls are disabled.

  Tail calling can be enabled by --harmony-tailcalls flag.

BUG=
==========

to

==========
X87: [es6] Tail calls support.

  port 6131ab1edd6e78be01ac90b8f0b0f4f27f308071 (r33509)

  original commit message:
  This CL implements PrepareForTailCall() mentioned in ES6 spec for full
codegen, Crankshaft and Turbofan.
  When debugger is active tail calls are disabled.

  Tail calling can be enabled by --harmony-tailcalls flag.

BUG=

Committed: https://crrev.com/66e2a786795859926e0ea3d23620e743a59fe88e
Cr-Commit-Position: refs/heads/master@{#33549}
==========

[commit-bot: I haz the power, 2016-01-27 13:00:31]

Patchset 1 (id:??) landed as
https://crrev.com/66e2a786795859926e0ea3d23620e743a59fe88e
Cr-Commit-Position: refs/heads/master@{#33549}