[lld] [lldb] [lldb/test] Add basic ld.lld --debug-names tests (PR #88335)

[Fangrui Song via llvm-commits]

MaskRay wrote:

This is not for review yet. When ld.lld --debug-names is added, this PR will be changed to add a few lines to `lldb/test/Shell/SymbolFile/DWARF/x86` tests.

https://github.com/llvm/llvm-project/pull/88335