Move to the new mx_handle syscall argument order

runtime/bin/run_vm_tests_fuchsia.cc

Index: runtime/bin/run_vm_tests_fuchsia.cc
diff --git a/runtime/bin/run_vm_tests_fuchsia.cc b/runtime/bin/run_vm_tests_fuchsia.cc
index fca5a6fe62ea6076a5f0e7c4ff9fd3b90cd95b5b..e9b7121f32b40f7e2727610994f24e2aeaeb14e1 100644
--- a/runtime/bin/run_vm_tests_fuchsia.cc
+++ b/runtime/bin/run_vm_tests_fuchsia.cc
@@ -324,7 +324,8 @@ static void* test_runner_thread(void* arg) {
     const char* test = args->test_list[index];
     char* test_stdout = NULL;
     char* test_stderr = NULL;
-    mx_handle_t vmo_dup = mx_handle_duplicate(binary_vmo, MX_RIGHT_SAME_RIGHTS);
+    mx_handle_t vmo_dup = MX_HANDLE_INVALID;
+    mx_handle_duplicate(binary_vmo, MX_RIGHT_SAME_RIGHTS, &vmo_dup);
     int test_status = run_test(vmo_dup, test, &test_stdout, &test_stderr);
     handle_result(test_status, test_stdout, test_stderr, test);
     free(test_stdout);
@@ -392,8 +393,10 @@ int main(int argc, char** argv) {
   // Run with --list to grab the list of tests.
   char* list_stdout = NULL;
   char* list_stderr = NULL;
-  mx_handle_t list_vmo = mx_handle_duplicate(binary_vmo, MX_RIGHT_SAME_RIGHTS);
-  RETURN_IF_ERROR(list_vmo);
+  mx_handle_t list_vmo = MX_HANDLE_INVALID;
+  mx_status_t status =
+      mx_handle_duplicate(binary_vmo, MX_RIGHT_SAME_RIGHTS, &list_vmo);
+  RETURN_IF_ERROR(status);
   int list_result = run_test(list_vmo, "--list", &list_stdout, &list_stderr);
   if (list_result != 0) {
     fprintf(stderr, "Failed to list tests: %s\n%s\n", list_stdout, list_stderr);
@@ -430,7 +433,7 @@ int main(int argc, char** argv) {
   }
   free(test_list);
   pthread_mutex_destroy(&args_mutex);
-  mx_status_t status = mx_handle_close(binary_vmo);
+  status = mx_handle_close(binary_vmo);
   RETURN_IF_ERROR(status);
 
   // Complain if we didn't try to run all of the tests.