adjusted tests of other languages for code-generator signature change

src/test/java/de/hhu/stups/codegenerator/TestC.java

src/test/java/de/hhu/stups/codegenerator/TestClojure.java

src/test/java/de/hhu/stups/codegenerator/cpp/TestCpp.java

src/test/java/de/hhu/stups/codegenerator/java/TestJava.java

src/test/java/de/hhu/stups/codegenerator/js/TestJs.java

...st/java/de/hhu/stups/codegenerator/prolog/TestProlog.java

...st/java/de/hhu/stups/codegenerator/python/TestPython.java