[lld] [lld][MachO] Test with exported_symbol and exported_symbols_list together (PR #127243)

[Ellis Hoag via llvm-commits]

https://github.com/ellishg created https://github.com/llvm/llvm-project/pull/127243

I've been investigating a bug involving `-exported_symbol` and I discovered that we have no test that uses both `-exported_symbol` and `-exported_symbols_list` together. Add this test to ensure they do not override each other now or in the future.

>From 7409f4300fc1369b6910dbb3146e910eb156ccd6 Mon Sep 17 00:00:00 2001
From: Ellis Hoag <ellishoag at meta.com>
Date: Fri, 14 Feb 2025 10:51:30 -0800
Subject: [PATCH] [lld] Test with exports and exports list together

---
 lld/test/MachO/export-options.s | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lld/test/MachO/export-options.s b/lld/test/MachO/export-options.s
index 1a5d409e83383..df2f90e3a4f3f 100644
--- a/lld/test/MachO/export-options.s
+++ b/lld/test/MachO/export-options.s
@@ -117,13 +117,15 @@
 ## Check that only string-literal patterns match
 ## Check that comments and blank lines are stripped from symbol list
 # RUN: %lld -dylib %t/symdefs.o -o %t/literal \
-# RUN:     -exported_symbols_list %t/literals.txt
+# RUN:     -exported_symbols_list %t/literals.txt \
+# RUN:     -exported_symbol singleton
 # RUN: llvm-objdump --macho --exports-trie %t/literal | \
 # RUN:     FileCheck --check-prefix=LITERAL %s
 
 # LITERAL-DAG: literal_only
 # LITERAL-DAG: literal_also
 # LITERAL-DAG: globby_also
+# LITERAL-DAG: singleton
 # LITERAL-NOT: globby_only
 
 ## Check that only glob patterns match
@@ -245,7 +247,7 @@ _keep_lazy:
 
 #--- symdefs.s
 
-.globl literal_only, literal_also, globby_only, globby_also
+.globl literal_only, literal_also, globby_only, globby_also, singleton
 literal_only:
   retq
 literal_also:
@@ -254,6 +256,8 @@ globby_only:
   retq
 globby_also:
   retq
+singleton:
+  retq
 
 #--- literals.txt