[aorai] shorten name of test dirs

src/plugins/aorai/Makefile.in

src/plugins/aorai/tests/ltl/call_tree.c

src/plugins/aorai/tests/ltl/call_tree.ltl

src/plugins/aorai/tests/ltl/goto.c

src/plugins/aorai/tests/ltl/goto.ltl

src/plugins/aorai/tests/ltl/oracle/goto.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_boucle.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_boucle1.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_boucle2.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_boucle3.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_factorial.res.oracle

...plugins/aorai/tests/ltl/oracle/test_recursion1.res.oracle

...ugins/aorai/tests/ltl/oracle/test_recursion2.0.res.oracle

...ugins/aorai/tests/ltl/oracle/test_recursion2.1.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_switch2.res.oracle

src/plugins/aorai/tests/ltl/oracle/test_switch3.res.oracle

...rai/tests/ltl/oracle/test_switch3_et_recursion.res.oracle

...plugins/aorai/tests/ltl/oracle/test_switch3_if.res.oracle

...ins/aorai/tests/ltl/oracle/test_switch3_return.res.oracle

src/plugins/aorai/tests/ltl/oracle_prove/goto.res.oracle