Fix the leaks that valgrind found in the new routerset tests.

(We have a tests-shouldn't-leak policy so that we won't accidentally
ignore true-positives.)

src/test/test_routerset.c

@@ -1487,8 +1487,9 @@ NS(test_main)(void *arg)
   /* Just recreate list, so we can simply use routerset_free. */
   set->list = smartlist_new();
 
-  done:
-     routerset_free(set);
+ done:
+  routerset_free(set);
+  smartlist_free(out);
 }
 
 #undef NS_SUBMODULE
@@ -1810,8 +1811,8 @@ NS(test_main)(void *arg)
 static void
 NS(test_main)(void *arg)
 {
-  const routerset_t *set;
-  char *s;
+  routerset_t *set = NULL;
+  char *s = NULL;
   (void)arg;
 
   set = NULL;
@@ -1823,12 +1824,14 @@ NS(test_main)(void *arg)
   s = routerset_to_string(set);
   tt_str_op(s, ==, "");
   tor_free(s);
+  routerset_free(set); set = NULL;
 
   set = routerset_new();
   smartlist_add(set->list, tor_strndup("a", 1));
   s = routerset_to_string(set);
   tt_str_op(s, ==, "a");
   tor_free(s);
+  routerset_free(set); set = NULL;
 
   set = routerset_new();
   smartlist_add(set->list, tor_strndup("a", 1));
@@ -1836,12 +1839,11 @@ NS(test_main)(void *arg)
   s = routerset_to_string(set);
   tt_str_op(s, ==, "a,b");
   tor_free(s);
+  routerset_free(set); set = NULL;
 
-  done:
-    if (s)
-      tor_free(s);
-    if (set)
-      routerset_free((routerset_t *)set);
+ done:
+  tor_free(s);
+  routerset_free((routerset_t *)set);
 }
 
 #undef NS_SUBMODULE
@@ -2036,24 +2038,22 @@ NS(test_main)(void *arg)
 void
 NS(smartlist_free)(smartlist_t *s)
 {
-  (void)s;
   CALLED(smartlist_free)++;
+  smartlist_free__real(s);
 }
 
 void
 NS(strmap_free)(strmap_t *map, void (*free_val)(void*))
 {
-  (void)map;
-  (void)free_val;
   CALLED(strmap_free)++;
+  strmap_free__real(map, free_val);
 }
 
 void
 NS(digestmap_free)(digestmap_t *map, void (*free_val)(void*))
 {
-  (void)map;
-  (void)free_val;
   CALLED(digestmap_free)++;
+  digestmap_free__real(map, free_val);
 }
 
 #undef NS_SUBMODULE