Review

class NameReferenceGraphConstruction.Traversal {
    /**
     * @return true if n MUST be a local name reference.
     */
    private boolean isLocalNameReference(NodeTraversal t, Node n) {
      // TODO(user): What happen if it is a reference to an outer local
      // variable (closures)?
      if (NodeUtil.isName(n)) {
        Var v = t.getScope().getVar(n.getString());
        return v != null && v.isLocal();
      }
      return false;
    }

}