This replace the non-descriptive digit at the end of the test name by
the name of the dEQP test being run.

BUG=angleproject:1153

Change-Id: Ibc9e5fbf46ffbf3a8c783807161b2bdc63119f54
Reviewed-on: https://chromium-review.googlesource.com/296686Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>
Tryjob-Request: Corentin Wallez <cwallez@chromium.org>