[llvm] [DWARF] Generalize DWARFTypePrinter to a template class (PR #109459)

[Zequan Wu via llvm-commits]

ZequanWu wrote:

> With that in mind, my opinion (others can disagree) is that we should use this opportunity to start that process and unify the interfaces (not implementations) to the extent necessary to make this template trick work. That will also include changes to the naming convention, where the obvious choice is to unify towards the llvm style. 

I started a discussion about this on https://discourse.llvm.org/t/adding-llvm-dwarfdie-apis-to-lldb-dwarfdie/81390 to unifying lldb's interfaces toward llvm's. 

https://github.com/llvm/llvm-project/pull/109459