[libFuzzer] change the probabilities so that we choose only the inputs that are known to be minimal inputs for at least one coverage feature (works only with -shrink=1 for now)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283178 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed