[libFuzzer] Mark a test that infinite loops as unsupported

We need to investigate this, but for now it just causes too much
headache when trying to run these tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295900 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed