fix pretty-print of parameterized types

- resolves #8

src/main/jastadd/backend/AbstractGrammar.jadd

@@ -127,6 +127,7 @@ aspect BackendAbstractGrammar {
   }
 
   public void ParameterizedJavaTypeUse.generateAbstractGrammar(StringBuilder b) {
+    b.append(getName());
     b.append("<");
     boolean first = true;
     for (JavaTypeUse javaTypeUse : getJavaTypeUseList()) {

src/test/resources/MinimalGrammar/in/Example.relast

@@ -11,3 +11,5 @@ Joint ::= <Name> <CurrentPosition:IntPosition>;  // normally this would be: <Cur
 EndEffector : Joint;
 
 Coordinate ::= <Position:IntPosition>;
+
+TestingParameterized : Coordinate ::= <ListPosition:java.util.List<IntPosition>>;