Fix integration tests to use new type API

Updated test files to use instantiated types with protocol_version:
- test_custom_protocol_handler.py: Changed ctype.from_binary(val, protocol_version)
  to ctype(protocol_version).from_binary(val)
- test_loadbalancingpolicies.py: Changed Int32Type.serialize(i, protocol_version)
  to Int32Type(protocol_version).serialize(i)

These tests were still using the old API where protocol_version was passed
as a parameter rather than using type instances.

Author: mykaul

tests/integration/long/test_loadbalancingpolicies.py

@@ -633,7 +633,7 @@ def test_token_aware_with_transient_replication(self):
         query = session.prepare("SELECT * FROM test_tr.users WHERE id = ?")
         for i in range(100):
             f = session.execute_async(query, (i,), trace=True)
-            full_dc1_replicas = [h for h in cluster.metadata.get_replicas('test_tr', cqltypes.Int32Type.serialize(i, cluster.protocol_version))
+            full_dc1_replicas = [h for h in cluster.metadata.get_replicas('test_tr', cqltypes.Int32Type(cluster.protocol_version).serialize(i))
                                  if h.datacenter == 'dc1']
             assert len(full_dc1_replicas) == 2
 

tests/integration/standard/test_custom_protocol_handler.py

@@ -241,7 +241,7 @@ def recv_results_rows(self, f, protocol_version, user_type_map, result_metadata,
         self.column_types = [c[3] for c in column_metadata]
         self.checked_rev_row_set.update(self.column_types)
         self.parsed_rows = [
-            tuple(ctype.from_binary(val, protocol_version)
+            tuple(ctype(protocol_version).from_binary(val)
                   for ctype, val in zip(self.column_types, row))
             for row in rows]