When merging tests, prefer non-blocklisted ones.

The test blocklist was failing when multiple tests were merged into
one.  To fix this, when merging tests we prefer ones that are not
blocklisted.

Fixes: 193790055
Test: Run on the previously failing crate and another.
Change-Id: I53d1179bebef824ce80ac4f977015b04a26f8607
1 file changed