git: 1f917f69ff07..4b4fe385e49b - vendor/llvm-project/main - vendor branch updated

From: Dimitry Andric <dim_at_FreeBSD.org>
Date: Sun, 24 Jul 2022 15:04:34 UTC
The branch vendor/llvm-project/main has been updated by dim:

URL: https://cgit.FreeBSD.org/src/log/?id=1f917f69ff07..4b4fe385e49b

4b4fe385e49b Vendor import of llvm-project main llvmorg-15-init-17485-ga3e38b4a206b.