git: 7fa27ce4a07f..b1c73532ee89 - vendor/llvm-project/main - vendor branch updated

From: Dimitry Andric <dim_at_FreeBSD.org>
Date: Sat, 09 Dec 2023 13:37:37 UTC
The branch vendor/llvm-project/main has been updated by dim:

URL: https://cgit.FreeBSD.org/src/log/?id=7fa27ce4a07f..b1c73532ee89

b1c73532ee89 Vendor import of llvm-project main llvmorg-18-init-14265-ga17671084db1.