[llvm] [gn build] Port 2ce6fc677fdb (PR #205958)

[Nico Weber via llvm-commits]

https://github.com/nico created https://github.com/llvm/llvm-project/pull/205958

None

>From 727d86facc069067b03066d007d124a101f93e1c Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis at chromium.org>
Date: Thu, 25 Jun 2026 21:49:00 -0400
Subject: [PATCH] [gn build] Port 2ce6fc677fdb

---
 llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn b/llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn
index 1f6c7e75d989f..547d82187b87f 100644
--- a/llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn
@@ -26,6 +26,7 @@ unittest("IRTests") {
     "DebugInfoTest.cpp",
     "DebugTypeODRUniquingTest.cpp",
     "DemandedBitsTest.cpp",
+    "DiagnosticInfoTest.cpp",
     "DominatorTreeBatchUpdatesTest.cpp",
     "DominatorTreeTest.cpp",
     "DroppedVariableStatsIRTest.cpp",