private boolean isEffectivelyUnqualified(LighterASTNode element) {
    LighterASTNode qualifier = JavaLightTreeUtil.findExpressionChild(tree, element);
    return qualifier == null || qualifier.getTokenType() == THIS_EXPRESSION &&
                                JavaLightTreeUtil.findExpressionChild(tree, qualifier) == null;
  }
private boolean isEffectivelyUnqualified(LighterASTNode element)