@Nullable
  private static String getReferencedMemberName(LighterAST tree, LighterASTNode expr, boolean isCall) {
    if (isCall) {
      return getCalledMethodName(tree, expr);
    }
    if (expr.getTokenType() == REFERENCE_EXPRESSION) {
      return JavaLightTreeUtil.getNameIdentifierText(tree, expr);
    }
    return null;
  }
@Nullable
  private static String getReferencedMemberName(LighterAST tree, LighterASTNode expr, boolean isCall)