[lld] [LLD][COFF] Use parentName for import files in toString. (PR #106104)

[Alexandre Ganea via llvm-commits]

https://github.com/aganea approved this pull request.

This is good because some libraries have members all named the same (ie.Microsoft) and it it’s not always clear from which archive the symbol comes from. Thanks for the change, LGTM!

https://github.com/llvm/llvm-project/pull/106104