[libFuzzer] Fix failing test: sigint.test
Summary:
Fix sigint.test by making it require msan rather
than enumerating unsupported platforms.
Reviewers: kcc
Subscribers: #sanitizers, llvm-commits
Tags: #sanitizers, #llvm
-# FIXME: Disabled on Windows for now because of reliance on posix only features
-# (eg: export, "&", pkill).
-UNSUPPORTED: darwin, windows
+REQUIRES: msan
# Check that libFuzzer exits gracefully under SIGINT with MSan.
RUN: rm -rf %t
