From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   e64f5dd94847..a945fb1481e0  main       -> origin/main
Switched to branch 'main'
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HEAD is now at a945fb1481e0 [clang] NFC, move the SourceLocationEncoding.h header guard to the begining of the file