[ASan] remove debug output from the test

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@174188 91177308-0d34-0410-b5e6-96231b3b80d8
[Sanitizer] use u32 instead of mode_t, which is defined in Darwin headers

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@174189 91177308-0d34-0410-b5e6-96231b3b80d8