Use the new mx_object_get_info parameter ordering

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 e9b7121f32b40f7e2727610994f24e2aeaeb14e1..3c7242201189fa6f1c768649a28a9b43ce776a8b 100644
--- a/runtime/bin/run_vm_tests_fuchsia.cc
+++ b/runtime/bin/run_vm_tests_fuchsia.cc
@@ -269,9 +269,11 @@ static int run_test(mx_handle_t binary_vmo, const char* test_name,
   RETURN_IF_ERROR(r);
 
   mx_info_process_t proc_info;
-  mx_ssize_t info_size = mx_object_get_info(
-      p, MX_INFO_PROCESS, sizeof(proc_info.rec), &proc_info, sizeof(proc_info));
-  RETURN_IF_ERROR(info_size);
+  mx_size_t info_size;
+  mx_status_t status =
+      mx_object_get_info(p, MX_INFO_PROCESS, sizeof(proc_info.rec),
+                         &proc_info, sizeof(proc_info), &info_size);
+  RETURN_IF_ERROR(status);
 
   r = mx_handle_close(p);
   RETURN_IF_ERROR(r);