[compiler-rt] [compiler-rt] Include <functional> in FuzzerDriver.cpp for `std::ref`. (PR #146828)

[Takuto Ikuta via llvm-commits]

https://github.com/atetubou created https://github.com/llvm/llvm-project/pull/146828

This is to fix modules build error in chromium like
https://ci.chromium.org/ui/p/chromium/builders/try/linux-libfuzzer-asan-rel/2292144/overview

>From 6ff4b7d36ba214bfe506c2d038731fdb56e85dfb Mon Sep 17 00:00:00 2001
From: Takuto Ikuta <tikuta at google.com>
Date: Thu, 3 Jul 2025 17:00:57 +0900
Subject: [PATCH] [compiler-rt] Include <function> in FuzzerDriver.cpp for
 `std::ref`.

---
 compiler-rt/lib/fuzzer/FuzzerDriver.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler-rt/lib/fuzzer/FuzzerDriver.cpp b/compiler-rt/lib/fuzzer/FuzzerDriver.cpp
index 3771abf5f532d..734cf28b4e4ac 100644
--- a/compiler-rt/lib/fuzzer/FuzzerDriver.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerDriver.cpp
@@ -24,6 +24,7 @@
 #include <chrono>
 #include <cstdlib>
 #include <cstring>
+#include <functional>
 #include <mutex>
 #include <string>
 #include <thread>