[libFuzzer] Update Load test to work on 32 bits.

We should ensure the size of the variable `a` is 8 bytes. Otherwise, this
generates a stack buffer overflow inside the memcpy call in 32 bits machines.
(We write more bytes than the size of a, when it is 4 bytes)

Differential Revision: https://reviews.llvm.org/D29602

git-svn-id: svn://svn.chromium.org/llvm-project/llvm/trunk/lib/Fuzzer@294378 0b72dbe1-c17f-4bc7-b9db-2b4152be0356
1 file changed