[llvm] [SandboxIR][NFC] Move sandboxir::Use into a separate file (PR #99074)

[via llvm-commits]

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@@ -0,0 +1,51 @@
+#ifndef LLVM_TRANSFORMS_SANDBOXIR_USE_H
+#define LLVM_TRANSFORMS_SANDBOXIR_USE_H
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vporpo wrote:

It's also missing the LLVM header!

https://github.com/llvm/llvm-project/pull/99074