X87: [runtime] Introduce a proper %NewArray runtime entry.

X87: [runtime] Introduce a proper %NewArray runtime entry.

  port ceade6cf239e0773213d53d55c36b19231c820b5 (r32131)

  original commit message:
  This adds a new %NewArray runtime entry, which constructs a new JSArray
  and does the subclassing correctly (to the same degree that %NewObject
  does currently), and also deals properly with the AllocationSite
  feedback mechanism. This runtime entry will be used by TurboFan and is
  also used as a fallback in the subclassing case in the stub currently.

BUG=

Committed: https://crrev.com/ea1d0a61be646970bc4bc51db919b020df562bf5
Cr-Commit-Position: refs/heads/master@{#32160}

[zhengxing.li, 2015-11-20 09:15:55]

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

[Weiliang, 2015-11-23 02:56:26]

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

[Weiliang, 2015-11-23 02:56:27]

lgtm

[commit-bot: I haz the power, 2015-11-23 02:56:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1462283003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1462283003/1

[commit-bot: I haz the power, 2015-11-23 03:15:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-23 03:16:05]

Patchset 1 (id:??) landed as
https://crrev.com/ea1d0a61be646970bc4bc51db919b020df562bf5
Cr-Commit-Position: refs/heads/master@{#32160}