add get of constraints

src/main/java/de/dhbwstuttgart/inferWildcards/InferWildcardsVisitor.java

@@ -24,8 +24,6 @@ public class InferWildcardsVisitor
 		this.constraintsSet = new ConstraintSet<>();
 	}
 
-
-
 	@SuppressWarnings("rawtypes")
 	@Override
 	public Void visitParameterizedType (ParameterizedTypeTree node, Void p) {
@@ -70,4 +68,7 @@ public class InferWildcardsVisitor
 		return super.visitVariable(node, p);
 	}
 
+	public ConstraintSet getConstraintSet() {
+		return constraintsSet;
+	}
 }