Fix the serialize-test: It was doing read then write, instead of write then read

git-svn-id: file:///svn/tokudb@298 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt-serialize-test.c

@@ -32,10 +32,9 @@ void test_serialize(void) {
     r = toku_hash_insert(sn.u.n.htables[1], "x", 2, "xval", 5, BRT_NONE); assert(r==0);
     sn.u.n.n_bytes_in_hashtables = 3*(BRT_CMD_OVERHEAD+KEY_VALUE_OVERHEAD+2+5);
 
-    deserialize_brtnode_from(fd, nodesize*20, &dn, nodesize);
-
     r = serialize_brtnode_to(fd, sn.nodesize*20, sn.nodesize, &sn);  assert(r==0);
 
+    r = deserialize_brtnode_from(fd, nodesize*20, &dn, nodesize);
 
     assert(dn->thisnodename==nodesize*20);
     assert(dn->height == 1);