Small fix to perf.dart.

Small fix to perf.dart.

This also makes perf_test.dart do something useful. It now executes perf.dart on
a small file from pkg/front_end. This may help to detect early when the
peformance bots will see a failure. I've only tested this in linux, but given
that's the OS of the perf bots, I'm ok skipping this in other OSs.

R=paulberry@google.com

Committed: https://github.com/dart-lang/sdk/commit/25e94e2e0b7544a6eef532ce2ea6248280794925

[Siggi Cherem (dart-lang), 2017-02-07 01:05:22]

Patchset #1 (id:1) has been deleted

[Siggi Cherem (dart-lang), 2017-02-07 01:06:02]

sigmund@google.com changed reviewers:
+ paulberry@google.com

[Paul Berry, 2017-02-07 12:58:20]

lgtm

[Siggi Cherem (dart-lang), 2017-02-07 23:08:04]

Description was changed from

==========
Small fix to perf.dart.

This also makes perf_test.dart do something useful. It now executes perf.dart on
a small file from pkg/front_end. This may help to detect early when the
peformance bots will see a failure. I've only tested this in linux, but given
that's the OS of the perf bots, I'm ok skipping this in other OSs.
==========

to

==========
Small fix to perf.dart.

This also makes perf_test.dart do something useful. It now executes perf.dart on
a small file from pkg/front_end. This may help to detect early when the
peformance bots will see a failure. I've only tested this in linux, but given
that's the OS of the perf bots, I'm ok skipping this in other OSs.

R=paulberry@google.com

Committed:
https://github.com/dart-lang/sdk/commit/25e94e2e0b7544a6eef532ce2ea6248280794925
==========

[Siggi Cherem (dart-lang), 2017-02-07 23:08:06]

Committed patchset #1 (id:20001) manually as
25e94e2e0b7544a6eef532ce2ea6248280794925 (presubmit successful).