Changes to testsuite

Changes to testsuite:
commit 0e2cf68870d3485e8d16bab7fb852d4f75c72796
Author: Austin Seipp <austin@well-typed.com>
Date:   Mon Oct 28 16:33:12 2013 -0500

    Don't include malloc.h in linker_unload test.

    It's not standard and fails to build on Darwin due to this.

    Signed-off-by: Austin Seipp <austin@well-typed.com>