Adjust memsafety tests to new checks

Signed-off-by: František Nečas <[email protected]>

Author: FrNecas

regression/memsafety/built_from_end_false/test.desc

@@ -4,4 +4,4 @@ main.c
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$
-\[main.pointer_dereference.11\] dereference failure: deallocated dynamic object in \*p: FAILURE
+\[main.pointer_dereference.15\] dereference failure: deallocated dynamic object in \*p: FAILURE

regression/memsafety/simple_false/test.desc

@@ -4,4 +4,4 @@ main.c
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$
-\[main.pointer_dereference.23\] dereference failure: deallocated dynamic object in \*p: FAILURE
+\[main.pointer_dereference.33\] dereference failure: deallocated dynamic object in \*p: FAILURE