[LibFuzzer] Try to unbreak the `FuzzerMutate.ShuffleBytes1` unit test.

This test is failing on my Linux box. Just increasing the number of
iterations works around this. The divergence is likely due to
our reliance on `std::shuffle()` which is not guaranteed to have
the same behaviour across platforms.

This is a strong argument for us to implement our own shuffle
function to avoid divergence in behaviour across platforms.

Differential Revision: https://reviews.llvm.org/D45767

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@330390 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed