Activate tests working after submodule update

This shows that the changes brought with the update are working
correctly.

Author: romainbrenguier

jbmc/regression/jbmc-strings/TokenTest01/test.desc

@@ -1,6 +1,6 @@
-FUTURE
+CORE
 TokenTest01.class
---max-nondet-string-length 1000 --unwind 30
+--max-nondet-string-length 1000 --unwind 30  --cp `../../../../scripts/format_classpath.sh . ../../../lib/java-models-library/target/core-models.jar`
 ^EXIT=0$
 ^SIGNAL=0$
 ^VERIFICATION SUCCESSFUL$

jbmc/regression/jbmc-strings/TokenTest02/test.desc

@@ -1,6 +1,6 @@
-FUTURE
+CORE
 TokenTest02.class
---max-nondet-string-length 1000 --unwind 15
+--max-nondet-string-length 1000 --unwind 15 --cp `../../../../scripts/format_classpath.sh . ../../../lib/java-models-library/target/core-models.jar`
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$