is_stack_access: don't iterate over possibly non-existent stmts.  This
has been observed to cause the JIT to segfault when using DRD on ARM.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13209 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed