[stubs] Extract ToInteger to CodeStubAssembler

[stubs] Extract ToInteger to CodeStubAssembler

Moving ToInteger to CodeStubAssembler allows us to inline it in several
builtins. In a follow-up commit, we'll add a TruncationMode argument to
specify how -0.0 should be handled.

BUG=

Committed: https://crrev.com/84145a149bcfc028b26fa6c5000e647c26d54db5
Cr-Commit-Position: refs/heads/master@{#39671}

[jgruber, 2016-09-23 08:45:53]

The CQ bit was checked by jgruber@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-23 08:46:00]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[jgruber, 2016-09-23 08:49:05]

jgruber@chromium.org changed reviewers:
+ ishell@chromium.org

[Igor Sheludko, 2016-09-23 09:10:36]

lgtm

[commit-bot: I haz the power, 2016-09-23 10:46:31]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-23 10:46:32]

Dry run: Try jobs failed on following builders:
  v8_win64_rel_ng on master.tryserver.v8 (JOB_TIMED_OUT, no build URL)
  v8_win_compile_dbg on master.tryserver.v8 (JOB_TIMED_OUT, no build URL)
  v8_win_nosnap_shared_rel_ng on master.tryserver.v8 (JOB_TIMED_OUT, no build
URL)
  v8_win_rel_ng on master.tryserver.v8 (JOB_TIMED_OUT, no build URL)

[jgruber, 2016-09-23 11:53:56]

The CQ bit was checked by jgruber@chromium.org

[commit-bot: I haz the power, 2016-09-23 11:54:13]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-23 14:28:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-23 14:28:23]

Description was changed from

==========
[stubs] Extract ToInteger to CodeStubAssembler

Moving ToInteger to CodeStubAssembler allows us to inline it in several
builtins. In a follow-up commit, we'll add a TruncationMode argument to
specify how -0.0 should be handled.

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

to

==========
[stubs] Extract ToInteger to CodeStubAssembler

Moving ToInteger to CodeStubAssembler allows us to inline it in several
builtins. In a follow-up commit, we'll add a TruncationMode argument to
specify how -0.0 should be handled.

BUG=

Committed: https://crrev.com/84145a149bcfc028b26fa6c5000e647c26d54db5
Cr-Commit-Position: refs/heads/master@{#39671}
==========

[commit-bot: I haz the power, 2016-09-23 14:28:24]

Patchset 1 (id:??) landed as
https://crrev.com/84145a149bcfc028b26fa6c5000e647c26d54db5
Cr-Commit-Position: refs/heads/master@{#39671}