ART: Fix test 912

Pass a descripter instead of a name.

Partial revert of commit 31c88580deb129f99f6b9835c6e21cb86a875f88.

(cherry picked from commit a164ec5b3811ba29a9fd83df9f318f07973224ce)

Bug: 36344364
Test: art/test/testrunner/testrunner.py -b --host --jit --no-prebuild --no-dex2oat -t 912
Test: art/test/testrunner/testrunner.py -b --host -t 912
Change-Id: I94085445bbc37f4b932dd4477763f114accbbc3c
2 files changed