add performance tests

add performance tests

BUG=
R=brianwilkerson@google.com

Committed: https://github.com/dart-lang/sdk/commit/6f775acc7b21baa15331bd8db2f882a971aa6906

[keertip, 2015-09-24 17:42:41]

keertip@google.com changed reviewers:
+ brianwilkerson@google.com

[Brian Wilkerson, 2015-09-24 19:33:35]

LGTM

[danrubel, 2015-09-24 19:49:29]

[Channeling Kevin here]
it's a semi-convention to put performance/benchmark code in the /benchmark dir

https://www.dartlang.org/tools/pub/package-layout.html

Good to avoid confusing the code w/ pass/fail tests.
Would you move this analysis_server/benchmark in a subsequent CL similar to 

See https://codereview.chromium.org/1219023006/

LGTM and thanks for landing this!

[keertip, 2015-09-25 15:29:30]

On 2015/09/24 19:49:29, danrubel wrote:
> [Channeling Kevin here]
> it's a semi-convention to put performance/benchmark code in the /benchmark dir
> 
> https://www.dartlang.org/tools/pub/package-layout.html
> 
> Good to avoid confusing the code w/ pass/fail tests.
> Would you move this analysis_server/benchmark in a subsequent CL similar to 
> 
> See https://codereview.chromium.org/1219023006/
> 
> LGTM and thanks for landing this!

Thanks for pointing that out. Moved tests to benchmark.

[keertip, 2015-09-25 15:35:52]

Committed patchset #2 (id:20001) manually as
6f775acc7b21baa15331bd8db2f882a971aa6906 (presubmit successful).