X87: [builtins] One runtime fallback is enough for the String constructor.

X87: [builtins] One runtime fallback is enough for the String constructor.

  port 34b7b21d1d7bf2e9c77ae5726f868e69f3b4a4f3 (r32000)

  original commit message:
  If inline allocation fails, we can just use the %NewObject fallback,
  which will do the right thing. We don't need a dedicated fallback to
  %AllocateInNewSpace.

BUG=

Committed: https://crrev.com/43ef9bc63241a3c80a5650427ee7a213405cef24
Cr-Commit-Position: refs/heads/master@{#32002}

[zhengxing.li, 2015-11-16 03:18:01]

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

[Weiliang, 2015-11-16 04:15:16]

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

[Weiliang, 2015-11-16 04:15:16]

lgtm

[commit-bot: I haz the power, 2015-11-16 04:15:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1451603002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1451603002/1

[commit-bot: I haz the power, 2015-11-16 04:33:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-16 04:33:25]

Patchset 1 (id:??) landed as
https://crrev.com/43ef9bc63241a3c80a5650427ee7a213405cef24
Cr-Commit-Position: refs/heads/master@{#32002}