From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   e973b0c810ca..640ab6c44d94  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 640ab6c44d94 [ADT] Derive FoldingSetNodeIDRef from ArrayRef<unsigned> (NFC) (#220824)