Add framework for testing builtin futility functions.

This tweaks the Makefile and adds a couple of placeholder tests to prepare
for testing the builtin futility operations. There aren't any useful builtin
functions yet, but this lets us start adding them along with the tests.

BUG=chromium:224734
BRANCH=none
TEST=none

This doesn't actually do anything yet.

Change-Id: Iff0ca514f7d26346f072bd80a3bcd04621284843
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/47432
Reviewed-by: Randall Spangler <rspangler@chromium.org>
6 files changed