pkg/fuzzer: fix signal filtering during minimization

This fixes 2 issues:
1. We still want to get new coverage for syscalls during minimization.
We run lots of new programs, and some of them can give new coverage.
2. The signal filter should apply only to the target syscall.
Other syscalls probably can't even reach any of that code.

So add SignalFilterCall field and combine new and filtered signal
for that call. Other calls just collect new coverage as usual.

0 files changed, 0 insertions, 0 deletions