Use global vars to point at possibly leaked
Depending on the compiler or optimisation level, the blocks that
are supposed to be possibly leaked are still reachable.
=> change the pointers to be global variables,
and do the allocation in a function, not in main.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13591 a5019735-40e9-0310-863c-91ae7b9d1cf9