For indirect calls, we need to set up the tables correctly. This CL
adds this to the test case generation logic.

R=ahaas@chromium.org

Change-Id: I18a5a8e0659c46daec00d46d02fe50d5d94638d6
Reviewed-on: https://chromium-review.googlesource.com/c/1349985Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57838}