git: 145449b1e420..1f917f69ff07 - vendor/llvm-project/main - vendor branch updated

[Dimitry Andric]

The branch vendor/llvm-project/main has been updated by dim:

URL: https://cgit.FreeBSD.org/src/log/?id=145449b1e420..1f917f69ff07

1f917f69ff07 Vendor import of llvm-project main 
llvmorg-15-init-16436-g18a6ab5b8d1f.