[Tests] Fixes location of generated files of a test

tests/journal/control.i

 /* run.config
  COMMENT: do not compare generated journals since they depend on current time
  PLUGIN: @EVA_PLUGINS@
-   EXECNOW: BIN control_journal.ml @frama-c@ @PTEST_FILE@ -journal-enable -eva -deps -out @EVA_OPTIONS@ -main f -journal-name control_journal.ml > @DEV_NULL@ 2> @DEV_NULL@
-   OPT: -load-script control_journal.ml
+   EXECNOW: BIN control_journal.ml @frama-c@ @PTEST_FILE@ -journal-enable -eva -deps -out @EVA_OPTIONS@ -main f -journal-name @PTEST_RESULT@/control_journal.ml > @DEV_NULL@ 2> @DEV_NULL@
+   OPT: -load-script @PTEST_RESULT@/control_journal.ml
  MODULE:
-   EXECNOW: BIN control_journal_bis.ml cp control_journal.ml control_journal_bis.ml > @DEV_NULL@ 2> @DEV_NULL@
-   OPT: -calldeps -load-script control_journal_bis.ml
+   EXECNOW: BIN control_journal_bis.ml cp @PTEST_RESULT@/control_journal.ml @PTEST_RESULT@/control_journal_bis.ml > @DEV_NULL@ 2> @DEV_NULL@
+   OPT: -calldeps -load-script @PTEST_RESULT@/control_journal_bis.ml
  MODULE: abstract_cpt use_cpt
-   EXECNOW: BIN abstract_cpt_journal.ml @frama-c@ -journal-enable -journal-name abstract_cpt_journal.ml > @DEV_NULL@ 2> @DEV_NULL@
-   OPT: -load-script abstract_cpt_journal.ml
+   EXECNOW: BIN abstract_cpt_journal.ml @frama-c@ -journal-enable -journal-name @PTEST_RESULT@/abstract_cpt_journal.ml > @DEV_NULL@ 2> @DEV_NULL@
+   OPT: -load-script @PTEST_RESULT@/abstract_cpt_journal.ml
 */
 
 int x,y,c,d;