[es6] fixup for rest parameters perf test

[es6] fixup for rest parameters perf test

BUG=v8:2160
LOG=N
NOTRY=true
R=adamk, machenbach@chromium.org, rossberg

Committed: https://crrev.com/0cc8eaa4c628543b520ab48667176967a225f7db
Cr-Commit-Position: refs/heads/master@{#30682}

[caitp (gmail), 2015-09-10 12:30:47]

caitpotter88@gmail.com changed reviewers:
- wingo@igalia.com

[caitp (gmail), 2015-09-10 12:31:21]

Quick fix for the error in JSTests.json

[Michael Achenbach, 2015-09-10 13:43:15]

lgtm

[Michael Achenbach, 2015-09-10 13:43:25]

Thanks!

[Michael Achenbach, 2015-09-10 13:43:39]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2015-09-10 13:43:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1331803003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1331803003/1

[commit-bot: I haz the power, 2015-09-10 13:45:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-10 13:45:15]

Patchset 1 (id:??) landed as
https://crrev.com/0cc8eaa4c628543b520ab48667176967a225f7db
Cr-Commit-Position: refs/heads/master@{#30682}

[Michael Achenbach, 2015-09-10 14:10:23]

This resolved the issue. The data is now tracked.