[test] Return target name on failures.

[test] Return target name on failures.

This information can be used on the buildbot side to only
rebuild the failing target for bisection.

BUG=chromium:511215
LOG=n
NOTRY=true

Committed: https://crrev.com/85d1464c4245183402aa098c043f4bc4fd83df02
Cr-Commit-Position: refs/heads/master@{#30617}

[Michael Achenbach, 2015-09-07 07:38:11]

machenbach@chromium.org changed reviewers:
+ jkummerow@chromium.org

[Michael Achenbach, 2015-09-07 07:39:10]

PTAL

https://codereview.chromium.org/1313353006/diff/1/tools/testrunner/local/prog...
File tools/testrunner/local/progress.py (right):

https://codereview.chromium.org/1313353006/diff/1/tools/testrunner/local/prog...
tools/testrunner/local/progress.py:378: "target_name": test.suite.shell(),
shell name == target name is an approximation - but right now it's accurate I
think.

[Jakob Kummerow, 2015-09-07 08:30:41]

lgtm

[Michael Achenbach, 2015-09-07 10:10:03]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2015-09-07 10:10:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1313353006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1313353006/1

[commit-bot: I haz the power, 2015-09-07 10:11:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-07 10:11:49]

Patchset 1 (id:??) landed as
https://crrev.com/85d1464c4245183402aa098c043f4bc4fd83df02
Cr-Commit-Position: refs/heads/master@{#30617}