[DynInst_API:] [dyninst/dyninst] 71f2e1: Refactor extracting CU tags from DWARF (#1495)

[Tim Haines <noreply@xxxxxxxxxx>]

  Branch: refs/heads/master
  Home:   https://github.com/dyninst/dyninst
  Commit: 71f2e14d3d3ad45c5e5bfdeae3c36222c4200e4f
      https://github.com/dyninst/dyninst/commit/71f2e14d3d3ad45c5e5bfdeae3c36222c4200e4f
  Author: Tim Haines <thaines.astro@xxxxxxxxx>
  Date:   2023-08-28 (Mon, 28 Aug 2023)

  Changed paths:
    A dwarf/h/dwarf_cu_info.hpp
    M symtabAPI/src/Object-elf.C
    M symtabAPI/src/dwarfWalker.C

  Log Message:
  -----------
  Refactor extracting CU tags from DWARF (#1495)

This centralizes the process and gives readable names to what's
happening.