[llvm] [Demangler] support demangling for AIX function entry names (PR #67389)

[Chen Zheng via llvm-commits]

chenzheng1030 wrote:

> This work already has an ongoing review at https://reviews.llvm.org/D139864 by @diggerlin. We don't need this PR - please close it.

Nice, glad to hear that.

https://github.com/llvm/llvm-project/pull/67389