Bug#1147194: llvm-23 needs updates for the symbols files

[Matthias Klose]

Package: src:llvm-toolchain-23
Version: 1:23.1.1-1
Severity: serious
Tags: sid forky

llvm-23 needs updates for the symbols files. This is RC, because once 
packages start building using LLVM 23, and using these new symbols, 
there's no way to hinder these to migrate and trying these packages to 
use the shared libraries from llvm-22.

  - debian/libclang1-23.symbols needs an update, but is not
    RC, because it's a new shared library.

  - libomp5, libc++abi1 have these additional symbols.

  - libc++1 has additional symbols, but also some missing symbols.
    These need to be checked, if they are optional.