From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   c88e207bf16f..f29955a594ae  main       -> origin/main
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warning: The last gc run reported the following. Please correct the root cause
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warning: There are too many unreachable loose objects; run 'git prune' to remove them.

Switched to branch 'main'
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HEAD is now at f29955a594ae [Clang][Sema] Allow counted_by on void* as GNU extension (#164737)