[Bug 9697] Make GrammarResolver to be exportable

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@174467 13f79535-47bb-0310-9956-ffa450edef68

src/xercesc/validators/common/GrammarResolver.hpp

@@ -79,7 +79,7 @@ class DatatypeValidatorFactory;
  *
  */
 
-class GrammarResolver {
+class VALIDATORS_EXPORT GrammarResolver {
 public:
 
     /** @name Constructor and Destructor */