docs: private void fixupInStatementExpressions(VoltXMLElement expr) throws HSQLParseException {
          if (doesExpressionReallyMeanIn(expr)) {
              inFixup(expr);
              // can't return because in with subquery can be nested
          }
  
          // recursive hunt
          for (VoltXMLElement child : expr.children) {
              fixupInStatementExpressions(child);
          }
      }