private List<MGlobalPrivilege> listPrincipalMGlobalGrants(String principalName,
      PrincipalType principalType) {
    return listPrincipalMGlobalGrants(principalName, principalType, null);
  }
Add role names of parentRoles and its parents to processedRoles
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java