[clang] [clang][NFC] declare internal linkage function static (PR #108759)

[Donát Nagy via cfe-commits]

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@@ -12,6 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "Move.h"
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NagyDonat wrote:

Why is this include added here?

https://github.com/llvm/llvm-project/pull/108759