private static boolean areEquivalentModuloComplement(PsiExpression op1, PsiExpression op2) {
      return EquivalenceChecker.getCanonicalPsiEquivalence().expressionsAreEquivalent(
        optionallyUnwrapComplement(op1), optionallyUnwrapComplement(op2));
    }
private static boolean areEquivalentModuloComplement(PsiExpression op1, PsiExpression op2)