[libFuzzer] Fix Alarm callback in fuchsia.

This patch adds an #if macro to skip the InFuzzingThread() comparison
for fuchsia, similar to what it is done for Windows and NetBSD.

In fuchsia, the alarm callback runs in a separate thread[0], making it fail
the comparison InFuzzingThread(), breaking the -timeout flag.


Author: charco (aka Marco  Vanotti)
Differential Revision: https://reviews.llvm.org/D68166

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@374228 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed