Try to fix two tests

src/test/resources/de/hhu/stups/codegenerator/LiftAddition.stcpp

@@ -3,6 +3,6 @@ int main() {
     lift.inc();
     lift.inc();
     lift.inc();
-    cout << lift._get_floor();
+    cout << lift._get_level();
     return 0;
 }
\ No newline at end of file

src/test/resources/de/hhu/stups/codegenerator/LiftAddition.stjava

@@ -3,5 +3,5 @@ public static void main(String[] args) {
     lift.inc();
     lift.inc();
     lift.inc();
-    System.out.println(lift._get_floor());
+    System.out.println(lift._get_level());
 }
\ No newline at end of file

src/test/resources/de/hhu/stups/codegenerator/LiftAddition.stjs

@@ -2,4 +2,4 @@ let lift: Lift = new Lift();
 lift.inc();
 lift.inc();
 lift.inc();
-console.log(lift._get_floor().toString());
\ No newline at end of file
+console.log(lift._get_level().toString());
\ No newline at end of file

src/test/resources/de/hhu/stups/codegenerator/LiftAddition.stpy

@@ -3,4 +3,4 @@ if __name__ == '__main__':
     lift.inc()
     lift.inc()
     lift.inc()
-    print(lift._get_floor())
\ No newline at end of file
+    print(lift._get_level())
\ No newline at end of file

src/test/resources/de/hhu/stups/codegenerator/LiftAddition.strs

@@ -3,5 +3,5 @@ fn main() {
     lift.inc();
     lift.inc();
     lift.inc();
-    println!("{}", lift._get_floor());
+    println!("{}", lift._get_level());
 }
\ No newline at end of file