LibFuzzer support for 32bit MSVC

This fixes the two build errors when trying to compile LibFuzzer for
32bit with MSVC.

    - authored by Max Shavrick (mxms at microsoft)

llvm-svn: 369704
GitOrigin-RevId: 2eaeba6f15d361687795dc429b78090ab38ff1d2
1 file changed