[compiler-rt] Include missing headers for libFuzzer

[atetubou]

This is to fix modules build errors in chromium like

• https://ci.chromium.org/ui/p/chromium/builders/try/linux-libfuzzer-asan-rel/2292144/overview
• https://ci.chromium.org/ui/p/chromium/builders/try/linux-libfuzzer-asan-rel/2292444/overview

[llvmbot]

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Takuto Ikuta (atetubou)

Changes

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

---

Full diff: https://github.com/llvm/llvm-project/pull/146828.diff

1 Files Affected:

• (modified) compiler-rt/lib/fuzzer/FuzzerDriver.cpp (+1)

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>

[github-actions]

✅ With the latest revision this PR passed the C/C++ code formatter.

[atetubou]

I applied suggested changes.