Unhappy about test/ProblemList.txt

[Martin Buchholz]

I was surprised to see some of my own favorite tests
in  test/ProblemList.txt and am not happy about that.
I fear that we have regression tests finding actual
regressions and that instead of this causing the
guilty changeset to be reverted, (or better yet
never checked in), innocent tests are just
getting added to the blacklist.

At least please un-blacklist my pet ProcessBuilder/Basic.java.

Martin