fix failing test. AST was missing type information for parameters, causing issues with object wrapping in Groovy 2.x and above

Author: graemerocher

grails-core/src/main/groovy/org/codehaus/groovy/grails/compiler/injection/GrailsASTUtils.java

@@ -255,6 +255,7 @@ Modifier.PUBLIC, returnType, copyParameters(parameterTypes),
                 GrailsArtefactClassInjector.EMPTY_CLASS_ARRAY, methodBody);
         methodNode.addAnnotations(declaredMethod.getAnnotations());
 
+
         classNode.addMethod(methodNode);
         return methodNode;
     }
@@ -298,7 +299,7 @@ public static ArgumentListExpression createArgumentListFromParameters(Parameter[
         }
 
         for (Parameter parameterType : parameterTypes) {
-            arguments.addExpression(new VariableExpression(parameterType.getName()));
+            arguments.addExpression(new VariableExpression(parameterType.getName(), nonGeneric(parameterType.getType())));
         }
         return arguments;
     }
@@ -515,9 +516,7 @@ public static ClassNode nonGeneric(ClassNode type) {
         }
 
         if (type.isArray()) {
-            final ClassNode nonGen = ClassHelper.makeWithoutCaching(Object.class);
-            nonGen.setUsingGenerics(false);
-            return nonGen.makeArray();
+            return type.getComponentType().getPlainNodeReference().makeArray();
         }
 
         return type.getPlainNodeReference();