[clang] [clang][nfc]Disable warning triggered in tests (PR #159216)

[Vy Nguyen via cfe-commits]

https://github.com/oontvoo created https://github.com/llvm/llvm-project/pull/159216

None

>From ddf98c32ad11e7f1b08e8ac8354474e5d66dd8be Mon Sep 17 00:00:00 2001
From: Vy Nguyen <vyng at google.com>
Date: Tue, 16 Sep 2025 20:45:35 -0400
Subject: [PATCH] [clang][nfc]Disable warning triggered in tests

---
 clang/test/Rewriter/objc-string-concat-1.m | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/test/Rewriter/objc-string-concat-1.m b/clang/test/Rewriter/objc-string-concat-1.m
index 9a23abcc7ff97..8b88a5e8bbaf4 100644
--- a/clang/test/Rewriter/objc-string-concat-1.m
+++ b/clang/test/Rewriter/objc-string-concat-1.m
@@ -1,4 +1,5 @@
-// RUN: %clang_cc1 -rewrite-objc -fobjc-runtime=macosx-fragile-10.5  %s -o -
+// -Wno-incompatible-pointer-types is needed to disable warning triggered by assigning NSString to NSConstantString
+// RUN: %clang_cc1 -rewrite-objc -fobjc-runtime=macosx-fragile-10.5 -Wno-incompatible-pointer-types %s -o -
 
 @class NSString;
 
@@ -11,4 +12,3 @@ @interface NSConstantString;
 NSConstantString *t = @"123"     @"4567"; // concat
 NSConstantString *t1 = @"123"     @"4567" /* COMMENT */ @"89"; // concat
 NSConstantString *t2 = @"123"     @/* COMMENT */ "4567"; // concat
-