cleanup some tests

tests/parallel_flat_hash_map_test.cc

@@ -4,7 +4,7 @@
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
-//      http://www.apache.org/licenses/LICENSE-2.0
+//      https://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ -21,6 +21,7 @@
 #include "hash_generator_testing.h"
 #include "unordered_map_constructor_test.h"
 #include "unordered_map_lookup_test.h"
+#include "unordered_map_members_test.h"
 #include "unordered_map_modifiers_test.h"
 
 namespace phmap {