Rebase of upstream commit:
https://github.com/llvm/llvm-project/commit/bb59f04e7e75dcbe39f1bf952304a157f0035314

diff --git a/include/lldb/Utility/AddressableBits.h b/include/lldb/Utility/AddressableBits.h
index 0d27c3561ec27..8c7a1ec5f52c0 100644
--- a/include/lldb/Utility/AddressableBits.h
+++ b/include/lldb/Utility/AddressableBits.h
@@ -12,6 +12,8 @@
 #include "lldb/lldb-forward.h"
 
+#include <cstdint>
+
 namespace lldb_private {
 
 /// \class AddressableBits AddressableBits.h "lldb/Core/AddressableBits.h"