git: ce77c4c12041..9a7cb8417a2a - vendor/llvm-project/release-18.x - vendor branch updated

[Dimitry Andric]

The branch vendor/llvm-project/release-18.x has been updated by dim:

URL: https://cgit.FreeBSD.org/src/log/?id=ce77c4c12041..9a7cb8417a2a

9a7cb8417a2a Vendor import of llvm-project branch release/18.x 
llvmorg-18.1.5-0-g617a15a9eac9.