very robust) version of killall. Because I like making shiny new wheels out of
spare parts.
For use by buildbots when people insist on making cc1 infinite loop. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86484 91177308-0d34-0410-b5e6-96231b3b80d8
