[llvm] [dsymutil] Fix parallel linker's self-recursive typedef DIE by including referred-to types into synthetic name (PR #166767)

[Roy Shi via llvm-commits]

royitaqi wrote:

Thank you for confirming~!  I appreciate it.

I will wait till tomorrow morning before merging just in case other folks have additional input. Other than that, thank you both for the review and suggestions~ cc @Michael137 

https://github.com/llvm/llvm-project/pull/166767