static @Nullable RangeConstraint create(TextRange textRange, PsiExpression expr, LongRangeSet set) {
      SpecialField field = null;
      PsiReferenceExpression ref = expr instanceof PsiReferenceExpression ? (PsiReferenceExpression)expr :
                                   expr instanceof PsiMethodCallExpression ? ((PsiMethodCallExpression)expr).getMethodExpression() : null;
      if (ref != null) {
        PsiExpression qualifier = ref.getQualifierExpression();
        if (qualifier != null) {
          field = SpecialField.findSpecialField(ref.resolve());
          if (field != null) {
            expr = qualifier;
          }
        }
      }
      if (SideEffectChecker.mayHaveSideEffects(expr)) {
        return null;
      }
      return new RangeConstraint(textRange, expr, field, set);
    }
static @Nullable RangeConstraint create(TextRange textRange, PsiExpression expr, LongRangeSet set)