X87: [runtime] Introduce dedicated JSBoundFunction to represent bound functions.

X87: [runtime] Introduce dedicated JSBoundFunction to represent bound functions.

  port 97def8070cbb979419c041c3732d5e11779f79da (r33044)

  original commit message:
  According to the ES2015 specification, bound functions are exotic
  objects, and thus don't need to be implemented as JSFunctions. So
  we introduce a new JSBoundFunction type to represent bound functions
  and make them optimizable. This already improves the performance of
  calling or constructing bound functions by 10-100x depending on the
  use case because we avoid the crazy dance between JavaScript and C++
  that was implemented in v8natives.js previously.

  There's still room for improvement in the performance of actually
  creating bound functions, which is also relevant in practice, but
  we already have a plan how to accomplish that later.

  The mips/mips64 ports were contributed by akos.palfi@imgtec.com.

BUG=

Committed: https://crrev.com/37d1dd823baa754ba45510c5a71236a29f72423b
Cr-Commit-Position: refs/heads/master@{#33046}

[zhengxing.li, 2015-12-28 04:09:23]

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

[zhengxing.li, 2015-12-28 04:09:23]

PTAL, Thanks!

[Weiliang, 2015-12-28 05:57:53]

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

[Weiliang, 2015-12-28 05:57:53]

lgtm

[commit-bot: I haz the power, 2015-12-28 05:57:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1548253002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1548253002/1

[commit-bot: I haz the power, 2015-12-28 06:18:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-28 06:19:03]

Description was changed from

==========
X87: [runtime] Introduce dedicated JSBoundFunction to represent bound functions.

  port 97def8070cbb979419c041c3732d5e11779f79da (r33044)

  original commit message:
  According to the ES2015 specification, bound functions are exotic
  objects, and thus don't need to be implemented as JSFunctions. So
  we introduce a new JSBoundFunction type to represent bound functions
  and make them optimizable. This already improves the performance of
  calling or constructing bound functions by 10-100x depending on the
  use case because we avoid the crazy dance between JavaScript and C++
  that was implemented in v8natives.js previously.

  There's still room for improvement in the performance of actually
  creating bound functions, which is also relevant in practice, but
  we already have a plan how to accomplish that later.

  The mips/mips64 ports were contributed by akos.palfi@imgtec.com.

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

to

==========
X87: [runtime] Introduce dedicated JSBoundFunction to represent bound functions.

  port 97def8070cbb979419c041c3732d5e11779f79da (r33044)

  original commit message:
  According to the ES2015 specification, bound functions are exotic
  objects, and thus don't need to be implemented as JSFunctions. So
  we introduce a new JSBoundFunction type to represent bound functions
  and make them optimizable. This already improves the performance of
  calling or constructing bound functions by 10-100x depending on the
  use case because we avoid the crazy dance between JavaScript and C++
  that was implemented in v8natives.js previously.

  There's still room for improvement in the performance of actually
  creating bound functions, which is also relevant in practice, but
  we already have a plan how to accomplish that later.

  The mips/mips64 ports were contributed by akos.palfi@imgtec.com.

BUG=

Committed: https://crrev.com/37d1dd823baa754ba45510c5a71236a29f72423b
Cr-Commit-Position: refs/heads/master@{#33046}
==========

[commit-bot: I haz the power, 2015-12-28 06:19:04]

Patchset 1 (id:??) landed as
https://crrev.com/37d1dd823baa754ba45510c5a71236a29f72423b
Cr-Commit-Position: refs/heads/master@{#33046}