dynamic suites: Rename experimental jobs to 'experimental_' take 2

Makes the final job result not consider experimental tests.

Original CL was: https://gerrit.chromium.org/gerrit/19823
Revert reason was: incorrect test name formatting -> broken links

I believe the failure was not caused by this CL.

BUG=chromium-os:28801
TEST=unit tests
TEST=schedule a failing experimental job, verify that run_suite has returned 2 for each job

Change-Id: I5722f1a4a930fcfaefe448634d0bdc80d7915274
Reviewed-on: https://gerrit.chromium.org/gerrit/20041
Tested-by: Zdenek Behan <zbehan@chromium.org>
Commit-Ready: Zdenek Behan <zbehan@chromium.org>
Reviewed-by: Zdenek Behan <zbehan@chromium.org>
Reviewed-by: Scott Zawalski <scottz@chromium.org>
2 files changed