[clang] Update ExternalPreprocessorSource.h (PR #96144)

[Danial Klimkin via cfe-commits]

https://github.com/dklimkin created https://github.com/llvm/llvm-project/pull/96144

Add missing includes.

>From bd4f6d50b57680f520ed22b5c5108ae6d9506ca3 Mon Sep 17 00:00:00 2001
From: Danial Klimkin <dklimkin at google.com>
Date: Thu, 20 Jun 2024 09:18:18 +0200
Subject: [PATCH] Update ExternalPreprocessorSource.h

Add missing includes.
---
 clang/include/clang/Lex/ExternalPreprocessorSource.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clang/include/clang/Lex/ExternalPreprocessorSource.h b/clang/include/clang/Lex/ExternalPreprocessorSource.h
index 48429948dbffe..51c11c3adf6e7 100644
--- a/clang/include/clang/Lex/ExternalPreprocessorSource.h
+++ b/clang/include/clang/Lex/ExternalPreprocessorSource.h
@@ -13,6 +13,9 @@
 #ifndef LLVM_CLANG_LEX_EXTERNALPREPROCESSORSOURCE_H
 #define LLVM_CLANG_LEX_EXTERNALPREPROCESSORSOURCE_H
 
+#include <cassert>
+#include <cstdint>
+  
 namespace clang {
 
 class IdentifierInfo;