// inline tester
Method tester = new Method() {
@Override
public boolean call(NodeTraversal t, Node n, Node parent) {
Reference ref = new Reference(n, t.getScope(), t.getModule(), mode);
CanInlineResult canInline = injector.canInlineReferenceToFunction(
ref, fnNode, unsafe,
NodeUtil.referencesThis(fnNode),
NodeUtil.containsFunction(NodeUtil.getFunctionBody(fnNode)));
assertTrue("canInlineReferenceToFunction should not be CAN_NOT_INLINE",