git: 677727e8296a..5bf671d65857 - vendor/llvm-project/release-15.x - vendor branch updated

From: Dimitry Andric <dim_at_FreeBSD.org>
Date: Sat, 10 Sep 2022 18:54:45 UTC
The branch vendor/llvm-project/release-15.x has been updated by dim:

URL: https://cgit.FreeBSD.org/src/log/?id=677727e8296a..5bf671d65857

e3fb157234c4 Vendor import of llvm-project branch release/15.x llvmorg-15.0.0-0-g4ba6a9c9f65b (aka 15.0.0 release).
5bf671d65857 Vendor import of llvm-project branch release/15.x llvmorg-15.0.0-9-g1c73596d3454.