[clang] [llvm] [PAC] Fix address discrimination for type info vtable pointers (PR #102199)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

getAddrOfCurrentPosition() is one way to do it... but it's not the only way to do it.  It was specifically designed to handle cases in CGExprConstant that would have been difficult to refactor otherwise.

Here, it's simple to compute the correct address beforehand, so you can just do that.

https://github.com/llvm/llvm-project/pull/102199