[clang] [clang][Module] Mark test unsupported since objc doesn't have xcoff/g… (PR #70661)

[Jake Egan via cfe-commits]

https://github.com/jakeegan created https://github.com/llvm/llvm-project/pull/70661

…off support

Same as D135848. The newly added test fails with `fatal error: error in backend: Objective-C support is unimplemented for object file format`. 

>From 9392421ef48aadfbbc0fcfe387f15c9fc1705b0d Mon Sep 17 00:00:00 2001
From: Jake Egan <5326451+jakeegan at users.noreply.github.com>
Date: Mon, 30 Oct 2023 10:05:45 -0400
Subject: [PATCH] [clang][Module] Mark test unsupported since objc doesn't have
 xcoff/goff support

---
 clang/test/Modules/relative-resource-dir.m | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clang/test/Modules/relative-resource-dir.m b/clang/test/Modules/relative-resource-dir.m
index 2efc61259fd7891..e0d1b6d221d109a 100644
--- a/clang/test/Modules/relative-resource-dir.m
+++ b/clang/test/Modules/relative-resource-dir.m
@@ -1,3 +1,4 @@
+// UNSUPPORTED: -zos, -aix
 // REQUIRES: shell
 
 // RUN: EXPECTED_RESOURCE_DIR=`%clang -print-resource-dir` && \