[llvm] [DWARF] Fix DWARTTypePrinter unable to print qualified name for DW_TAG_typedef DIE (PR #117239)

[Zequan Wu via llvm-commits]

ZequanWu wrote:

Moved the unit tests for DWARFTypePrinter from lldb to `llvm/unittests/DebugInfo/DWARF/DWARFDieTest.cpp`. 

https://github.com/llvm/llvm-project/pull/117239