refdb tests: use the right variable size

Mixing int and size_t through pointers leads to problems
in big-endian machines.

tests-clar/refdb/inmemory.c

@@ -124,7 +124,7 @@ int foreach_test(const char *ref_name, void *payload)
 {
 	git_reference *ref;
 	git_oid expected;
-	int *i = payload;
+	size_t *i = payload;
 
 	cl_git_pass(git_reference_lookup(&ref, repo, ref_name));
 
@@ -160,7 +160,7 @@ void test_refdb_inmemory__foreach(void)
 	cl_git_pass(git_reference_create(&write3, repo, GIT_REFS_HEADS_DIR "test3", &oid3, 0));
 	
 	cl_git_pass(git_reference_foreach(repo, GIT_REF_LISTALL, foreach_test, &i));
-	cl_assert(i == 3);
+	cl_assert_equal_i(i, 3);
 	
 	git_reference_free(write1);
 	git_reference_free(write2);
@@ -171,7 +171,7 @@ int delete_test(const char *ref_name, void *payload)
 {
 	git_reference *ref;
 	git_oid expected;
-	int *i = payload;
+	size_t *i = payload;
 
 	cl_git_pass(git_reference_lookup(&ref, repo, ref_name));
 	
@@ -207,7 +207,7 @@ void test_refdb_inmemory__delete(void)
 	git_reference_free(write3);
 	
 	cl_git_pass(git_reference_foreach(repo, GIT_REF_LISTALL, delete_test, &i));
-	cl_assert(i == 1);
+	cl_assert_equal_i(i, 1);
 
 	git_reference_free(write2);
 }