@Contract("null -> false")
    private boolean isParameterReference(PsiExpression operand) {
      PsiReferenceExpression ref = tryCast(PsiUtil.skipParenthesizedExprDown(operand), PsiReferenceExpression.class);
      if (ref == null) return false;
      PsiParameter target = tryCast(ref.resolve(), PsiParameter.class);
      if (target == myParameter) return true;
      if (target == null) return false;
      return target.getParent() instanceof PsiParameterList && target.getParent().getParent() instanceof PsiLambdaExpression;
    }
@Contract("null -> false")
    private boolean isParameterReference(PsiExpression operand)