X87: Make arguments adaptor not clobber new.target.

X87: Make arguments adaptor not clobber new.target.

  port c1e7c8d972e8a42878dcae6bf1ad33997608e7b3 (r32171)

  original commit message:
  This ensures that the ArgumentsAdaptorTrampoline does not clobber the
  new.target value, but rather passes it through to the callee unaltered.
  Note that callees do not yet use the new.target value so far.

  This is a preparatory CL to allows us passing new.target in a register
  instead of via a side-channel through the construct stub frame.

BUG=

Committed: https://crrev.com/84010cb2c7ab7fa6960e03a1444df4c246906aa3
Cr-Commit-Position: refs/heads/master@{#32192}

[zhengxing.li, 2015-11-24 02:50:26]

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

[Weiliang, 2015-11-24 03:25:58]

The CQ bit was checked by weiliang.lin@intel.com

[Weiliang, 2015-11-24 03:25:58]

lgtm

[commit-bot: I haz the power, 2015-11-24 03:26:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1475523002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1475523002/1

[commit-bot: I haz the power, 2015-11-24 07:03:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-24 07:03:50]

Patchset 1 (id:??) landed as
https://crrev.com/84010cb2c7ab7fa6960e03a1444df4c246906aa3
Cr-Commit-Position: refs/heads/master@{#32192}

[Michael Starzinger, 2015-11-24 08:57:03]

LGTM. Thanks!