@Override
      public boolean hasResult() {
        return true;
      }
Test the execution of function on all memebers haveResults = true

member1 calls for the function executions sp the results received on memeber 1 should be equal
to the no of function execution calls. Function Execution should happen on all other members
too. so the no of function execution calls and no of function executions completed should be
equal tio the no of functions from member 1
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/execute/FunctionServiceStatsDUnitTest.java